May -Aug Special Edition Part 3 of 3 (Part 1 see UON 25) (Part 2 see UON 27) By Lev Zilbermints Editor: Gary Gifford

Transcription

1 May -Aug 2011 Special Edition Part 3 of 3 (Part 1 see UON 25) (Part 2 see UON 27) By Lev Zilbermints Editor: Gary Gifford

2 Foreword UON 28 May Aug 2011 UON 28 was to be an entirely different UON but UON 27 ran over the size limit in megabytes and thus was split into UON 27 and UON 28. The material in this UON27 and UON28 was written by Lev Zilbermints. Use of his analysis in other publications is prohibited without his prior written consent. The first part of Lev s material, chapters one through five, are presented in UON 25 (October 2009). Lev Zilbermints Due to other commitments I have only performed a very light edit and added diagrams, but not as many as I would have liked to. Sincerely, Gary K. Gifford Cleveland, Ohio 15 May 2011 UON 28 May 2011 by Lev D. Zilbermints and Gary K Gifford. Please forward UON comments, games, and article submissions to: penswift@yahoo.com

3 Contents Continued from UON 27 UON 27 CHAPTERS 6: The Counter-Strike Sub-Variation, 9 c5 1 7: Punting the Bishop, 9 h6 11 8: Waiting Out, 9 c6 17 9: Transpositions, Zilbermints Gambit Delayed : Zilbermints Gambit Avoided 30 UON 28 CHAPTERS 11: Related Systems 37 12: Alternatives to 9 Kh1 52 Addendum: Additional Games 58 Errata A-1

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5 CHAPTER 11: Related Systems This chapter covers systems that are similar to my double-gambit against the Euwe Defense. There are a number of these Related Systems, and I treat them here accordingly. ZILBERMINTS GAMBIT ACCEPTED A. 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Bb4 7 Bd3 Nc6 8 00! Nxd4 9 Kh1! XABCDEFGHY 8r+lwqk+-tr( 7zppzp-+pzpp' 6-+-+psn-+& vL-% 4-vl-sn-+-+$ 3+-sNL+N+-# 2PzPP+-+PzP" 1tR-+Q+R+K! xabcdefghy 9 Nxf3 Black plays the least difficult variation. 10 Qxf3 Bxc3 11 bc3 Bd7 12 Bxf6 Bxf6 13 Qf6 Qf6 14 Rf6 b5 15 Raf R1f3 Rad8 17 Rg3 Kh8 18 Bh7 Bc6 19 Bd3 Bg2 20 Kg2 a6 21 Rh6 mate, 1-0, T. Sawyer Chessmaster (computer) Bellefonte, Pennsylvania, USA, Nc6 10 a3 Bc5 (The actual move order was 9 a3 Bc5 10 Kh1 Nc6, which transposed) 11 Qe1 h6 12 Bxf6 gxf6 13 Rd1 Bd7 14 Ne4 Be7 15 Bb5 Nb8 16 Qg3 Rf8 17 Nd4 a6 18 Be2 Bd6 19 Qg7 Qe7 20 Nf6+ Kd8 21 Nh7, 1-0, Frank Fritsche Werner Bare, Germany, 2000, DESC STS002 tournament. UON 28 May - Aug 2011 Zilbermints Gambit 37

6 ZILBERMINTS GAMBIT DELAYED 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Bb4 7 Bd3 Nc6 8 a3 XABCDEFGHY 8r+lwqk+-tr( 7zppzp-+pzpp' 6-+n+psn-+& vL-% 4-vl-zP-+-+$ 3zP-sNL+N+-# 2-zPP+-+PzP" 1tR-+QmK-+R! xabcdefghy The move 8 a3 gives the 6 Bb4 line independent significance, because the Bb4 is attacked. 8 Ba Nxd4 10 Kh1 Bxc3 11 bxc3 Nxf3? Now White has the two Bishops and a great position. 12 Qf3 Qd5 13 Qf4 Qd6 14 Qf2 Qe5 15 Qh4 Nd5 16 Rae1 Qc3 17 Rf3 Qxc3 18 c4 Ne7 19 Bd2 Nc6 20 Be4 f6 21 Bg6 Ke7 22 Rd3 a5 23 Bf4 Ra6 24 Be3 Qe5 25 Rdd1 a4 26 Bf4 Qb2 27 Bxc7 Qxa3 28 Bh5 Na5 29 Re5 Nc6 30 Rg5, 1-0, Peter Leisebein Lars Milde, TSC correspondence, Germany UON 28 May - Aug 2011 Zilbermints Gambit 38

7 B. THE CLARK GAMBIT 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Nc XABCDEFGHY 8r+lwqkvl-tr( 7zppzp-+pzpp' 6-+n+psn-+& % 4-+-zP-+-+$ 3+-sNL+N+-# 2PzPP+-+PzP" 1tR-vLQ+RmK-! xabcdefghy The Clark Gambit is characterized by leaving the Bc1 on its original square rather than developing it with 6 Bg5. Instead, White offers a gambit with 6 Bd3 Nc While the Clark Gambit may transpose into the Zilbermints Gambit after 7 Be7 8 Bg5 Nxd4 9 Kh1, independent lines are well possible. While its earliest game dates from 1992, the Clark Gambit is named after Robert Clark who played two games in UON 28 May - Aug 2011 Zilbermints Gambit 39

8 B1. CLARK GAMBIT DECLINED N. Zachs John Smalec; 1992 Flint Championship; Flint, Michigan, Class A 7 Bd6 8 Be3 b6 9 Nb5 Bb7 10 Ng5 Qd7 11 Nxd6+ cxd6 12 c3 h6 13 Ne4 Nxe4 14 Bxe4 Ne7 15 Qf3 Bxe4 16 Qxe h4 Qc6 18 Qg4 Nf5 19 Bf4 Rac8 20 Rae1 Qb5 21 Rf2 Qa4 22 a3 Qc4 23 g3 Qd3 24 Rd2 Qc4 25 Rf2 Qd3 26 Rfe2 Rfe8 27 Rd2 Qc4 28 Qh3 Qd5 29 g4 Ne7 30 Qg3 Ng6 31 Bxd6 Nxh4 32 Rf2 Ng6 33 Be5 Nxe5 34 dxe5 Red8 35 Ref1 Rc7 36 g5 hxg5 37 Rh2 Qc5+ 38 Rff2 Rd1 39 Kg2 Qd5+ 40 Kh3 Rc4 41 Qxg5 Rd The next game is by the inventor of the Clark Gambit. accurately, he might have won the game. Had White played Robert W. Clark David Phillips; Dallas, Texas Championship Round 3; May 29, d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Nc6 7 00!? Be7 Here 8 Bg5 can transpose to the Zilbermints Gambit after 8 Nxd4 9 Kh1! 8 Kh1 Nb4 Phillips tries to trade the Bd3. For a similar motif see Zilbermints Kopiecki, BDM I, 1993, Zilbermints Gambit Avoided. 9 Bc4 Nbd5 10 Qe1 Bd7 11 a3 Bc6 12 Ne Bd3 Nxc3 14 bxc3 Qd5 15 Qg3 Rad8 16 Bg5?? This move loses the game. In view of the powerful Bc6, best was 16 Nxc6! With these sublines: a) 16 bxc6 17 Bg5 += ; b) 16 Qxc6 17 Qh4 h5 18 Bg5 += 16 Nh5! 17 Qg4 Qxg4+! 0-1. UON 28 May - Aug 2011 Zilbermints Gambit 40

9 B2. CLARK GAMBIT DELAYED 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Be XABCDEFGHY 8rsnlwq-trk+( 7zppzp-vlpzpp' 6-+-+psn-+& % 4-+-zP-+-+$ 3+-sNL+N+-# 2PzPP+-+PzP" 1tR-vLQ+RmK-! xabcdefghy In the Clark Gambit Delayed, Black waits a little before accepting the d4-pawn. As was noted earlier, the Bc1-g5 maneuver is not played in the Clark Gambit. This means that White must break through the Black defenses without using the Bg5. Whether or not he manages to do so is the critical point of the Clark Gambit. UON 28 May - Aug 2011 Zilbermints Gambit 41

10 Herbert Grawe Rolf Thiering; Dortmund Dortmund ABC Aufstreber; 11 November d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Be h3 Nc6 9 Qe1 h6 10 Kh1 Nxd4 The position is somewhat similar to R. Clark David Phillips, Dallas Nxd4 Qxd4 12 Be2 Qd8 13 Bf4 c6 14 Rd1 Qb6 15 b3 Nd5 16 Na4 Qb4 17 c3 Qa5 18 Qg3 Nxf4 19 Qxf4 b5 20 Nb2 Qxc3 21 Nd3 Qa5 22 Ne5 Qb6 XABCDEFGHY 8r+l+-trk+( 7zp-+-vlpzp-' 6-wqp+p+-zp& 5+p+-sN-+-% wQ-+$ 3+P+-+-+P# 2P+-+L+P+" 1+-+R+R+K! xabcdefghy 23 Nxf7! Bg5 24 Nxh6+ Bxh6 25 Qxf8+ Kh7 26 Bd3+ g6 27 Rf7+1-0 XABCDEFGHY 8r+l+-wQ-+( 7zp-+-+R+k' 6-wqp+p+pvl& 5+p+-+-+-% $ 3+P+L+-+P# 2P+-+-+P+" 1+-+R+-+K! xabcdefghy Black Resigns. UON 28 May - Aug 2011 Zilbermints Gambit 42

11 The next three games, all with the Clark Gambit Accepted, were played between The first game shows the dangers of weak defense; the second, of White not knowing the theory; the third and last, of pausing when victory is within your grasp. But then again, the Clark Gambit is still in its formative stages. B3. CLARK GAMBIT ACCEPTED 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Nc Nxd4 XABCDEFGHY 8r+lwqkvl-tr( 7zppzp-+pzpp' 6-+-+psn-+& % 4-+-sn-+-+$ 3+-sNL+N+-# 2PzPP+-+PzP" 1tR-vLQ+RmK-! xabcdefghy In the Clark Gambit Accepted, Black greedily snatches up the d4-pawn, daring White to prove his investment. UON 28 May - Aug 2011 Zilbermints Gambit 43

12 Gordon Megibow (1851) M. Swaiss (1504) Concord, California; 1995 U.S. Open; Round 2 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Nc Nxd4 8 Be3 Bc5? XABCDEFGHY 8r+lwqk+-tr( 7zppzp-+pzpp' 6-+-+psn-+& 5+-vl-+-+-% 4-+-sn-+-+$ 3+-sNLvLN+-# 2PzPP+-+PzP" 1tR-+Q+RmK-! xabcdefghy This allows Megibow to press his attack in fine style. Correct was 8 Nc6! as in the next game. 9 Nxd4 Bxd4 10 Bb5+! c6 11 Bxd4 cxb5 12 Nxb5 XABCDEFGHY 8r+lwqk+-tr( 7zpp+-+pzpp' 6-+-+psn-+& 5+N+-+-+-% 4-+-vL-+-+$ # 2PzPP+-+PzP" 1tR-+Q+RmK-! xabcdefghy UON 28 May - Aug 2011 Zilbermints Gambit 44

13 Black s position is wide open. He should immediately play getting the King to safety. Even then, after 13 Bxf6! Qxd1 14 Rad1 gf6 15 Rxf6 Kg7 16 Rdf1 White has an obvious edge due to his better-placed pieces. 12 Bd7? This move just loses the game for Black. There followed 13 Nd6+ Kf8 14 Rxf6! gf6 15 Qh5 Be8 16 Qh6+ Ke7 17 Bxf6+ Kxd6 18 Bxd8 Rxd8 19 Rd1+ Kc7 20 Rxd8 Kxd8 21 Qf Riccardo Mordiglia (2105) Wolf Egartner (2185) 1997 Celle Liguire Open; Round 7 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Nc Nxd4 8 Kh1 Nc6! Black removes the Knight from harm. Here 9 Bg5 Be7 would transpose to the Zilbermints Gambit Accepted.9 a3 Be7 10 Qe1 Nd5 XABCDEFGHY 8r+lwqk+-tr( 7zppzp-vlpzpp' 6-+n+p+-+& 5+-+n+-+-% $ 3zP-sNL+N+-# 2-zPP+-+PzP" 1tR-vL-wQR+K! xabcdefghy So far White has played more or less good moves. His next move is a horrible blunder that puts Black on the offensive, repulses White s attack, and ultimately costs him the game. UON 28 May - Aug 2011 Zilbermints Gambit 45

14 11 Ne4?? f5! XABCDEFGHY 8r+lwqk+-tr( 7zppzp-vl-zpp' 6-+n+p+-+& 5+-+n+p+-% 4-+-+N+-+$ 3zP-+L+N+-# 2-zPP+-+PzP" 1tR-vL-wQR+K! xabcdefghy With the d3-h7 diagonal locked, the Ne4 forced to move, and Black ahead two pawns, the rest is a matter of technique. What White should have played was 11 Qg3, transferring the Queen to the Kingside, and keeping the attack alive. For example, 11 Nxc3 12 bxc3 Bf6 13 Bg5! +=. Another line is 11 Bf6 12 Ne4 with some pressure for White. While it is far from clear that White gets enough compensation even in these sample lines, at least 11 Qg3 is much better than the text move. After the horrible 11 Ne4?? White is lost. UON 28 May - Aug 2011 Zilbermints Gambit 46

15 12 Neg5 Qd6 13 Bb Bxc6 Qxc6 15 Nd4 Qa6 16 Nde6 Bxe6 17 Qxe6 Qxe6 18 Nxe6 Rf6 19 Nf4? White is down a pawn, so he should not trade pieces. The correct move is 19 Nd4 hitting the f5-pawn. Even then, after19 g6 20 c4 Nb6 21 b3 White can still put up a fight. But with the Knights exchanged, Black nurses his extra pawn to victory. 19 Nxf4 20 Bxf4 Re6 21 Rae1 Rxe1 22 Rxe1 Kf7 23 Kg1 g5 24 Be5 Re8 25 Bc3 Bc5+ 26 Kf1 Rxe1+ 27 Kxe1 Ke6 28 Bd2 f4 29 Ke2 Kf5 30 a4 h5 31 b3 Ke4 32 Bc3 Bd4 33 Bd2 g4 34 Be1 Be5 35 h3 f3+ 36 gxf3 gxf3 37 Kf2 h4 38 Bd2 Bf4 39 Bc3 Be3+ 40 Kf1 Kf4 41 Be1 Kg5 42 Bc3 Bc5 43 Bd2 Kf5 44 Be1 Be7 45 Bf2 a6 46 Ke1 Ke4 47 Kf1 b5 48 axb5 axb5 49 Ke1 c5 50 Kf1 Kd5 51 Ke1 f4 52 bxc4+ Kxc4 53 Kd1 Bg5 54 Be1 Kd4 55 Bf2+ Ke4 56 Ke1 Kf5 57 Kf1 Kf4 58 Ke1 Ke4 59 Kf1 Kd5 60 Ke1 Kc4 61 Kd1 Kc3 62 Be1 Kb2 63 Bf2 Kb1 64 Be1 Be3 65 Bxh4 f2 66 Ke2 Kxc2 67 Bf6 Kb3 68 h4 Kc4 69 h5 b4 70 Bb2 b3 71 h6 Bxh6 72 Kxf2 Kd3 73 Be5 Kc2 74 Ke2 Bd The next game is by the inventor of the Clark Gambit. Robert W. Clark David Koetsier; Corr. theme D00.1, d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Nc Nxd4 Be3 Nc6 9 Qe1 Bd6 10 Qh4 Nb4 11 Rad1 Nfd5 12 Bg5 Qd7 13 Ne4 Nxd3 14 Rxd3 f6 XABCDEFGHY 8r+l+k+-tr( 7zppzpq+-zpp' 6-+-vlpzp-+& 5+-+n+-vL-% 4-+-+N+-wQ$ 3+-+R+N+-# 2PzPP+-+PzP" RmK-! xabcdefghy UON 28 May - Aug 2011 Zilbermints Gambit 47

16 15 Bxf6?! Dubious. Best is 15 Rxd5! Nxf6 16 Ne5 Bxe5 17 Rxd7 Bxd7 18 Nc Qb4 Bc6 20 Nxe6 Rd6 21 Ng5 Nd XABCDEFGHY 8-+k+-+-tr( 7zppzp-+-zpp' 6-+ltr-+-+& 5+-+nvl-sN-% 4-wQ-+-+-+$ # 2PzPP+-+PzP" RmK-! xabcdefghy Alternatives to 7 00 : Luis Antilus (1651) Konstantin Mazur (1551) Westfield Quads; Westfield, New Jersey, USA; d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bd3 Nc6 7 Ne5?! This move is dubious, for after 7 Nxd4! Black has a 2-pawn advantage with no weaknesses. 7 Qxd4? XABCDEFGHY 8r+l+kvl-tr( 7zppzp-+pzpp' 6-+n+psn-+& 5+-+-sN-+-% 4-+-wq-+-+$ 3+-sNL+-+-# 2PzPP+-+PzP" 1tR-vLQmK-+R! xabcdefghy Now that is inaccurate, as the Queen becomes a target. UON 28 May - Aug 2011 Zilbermints Gambit 48

17 Editor s note: My Fritz 10 likes 7. Qxd4 and gives Black a 1.33 advantage after 8.Nxc6 (or 1.84 after 8.Nf3) 8 Nxc6 bxc6 9 Qf3 Bb7? The best move was 9 Nd5! Here after 10 Nxd5 exd5 11 Be3 Qb4+. White has some attacking chances but the key a1/h8 diagonal remains closed. 10 Be3 XABCDEFGHY 8r+-+kvl-tr( 7zplzp-+pzpp' 6-+p+psn-+& % 4-+-wq-+-+$ 3+-sNLvLQ+-# 2PzPP+-+PzP" 1tR-+-mK-+R! xabcdefghy (Editor s note: I know Lev doesn t care much for computer analysis, but I find it most often to be quite accurate. Fritz still has Black ahead here after 10 Qh4+ If 11. g3, then 11 Qg4; Fritz believes 10.Qd7 is not good. 10. Qh4+ and I think Black could be better.) UON 28 May - Aug 2011 Zilbermints Gambit 49

18 10 Qd Bd6 12 Qh3 e5?? Loses immediately. (Editor s note: What s wrong with 12 Nd5? Black seems fine) 13 Bf5! Qe7 14 Bg5 h6 XABCDEFGHY 8r+-+k+-tr( 7zplzp-wqpzp-' 6-+pvl-sn-zp& 5+-+-zpLvL-% $ 3+-sN-+-+Q# 2PzPP+-+PzP" 1tR-+-+RmK-! xabcdefghy 15 Ne4 c5 16 Nxf6 gxf6 17 Bxf6 Qxf6 18 Bd7+! Ke7 19 Rxf6 Kxf6 20 Rf1+ Ke7 21 Qf5 Raf8 22 Ba4 Rhg8?? 23 Qf6 mate! 1-0. XABCDEFGHY trr+( 7zplzp-mkp+-' 6-+-vl-wQ-zp& 5+-zp-zp-+-% 4L $ # 2PzPP+-+PzP" RmK-! xabcdefghy UON 28 May - Aug 2011 Zilbermints Gambit 50

19 Chapter 12: Alternatives to 9 Kh1! The usual move after 8 Nxd4 is 9 Kh1!, moving the King away and preparing the trap 9 Qxd4?? 10 Bxh7+! Kxh7 11 Qxd4 +-. In this chapter, I examine other 9 th move alternatives for White. These are: A 9 Nxd4 B Ne5 C 9 Bf4 D Ne4 A 9 Nxd4 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Nxd4 XABCDEFGHY 8r+lwqk+-tr( 7zppzp-vlpzpp' 6-+-+psn-+& vL-% 4-+-sN-+-+$ 3+-sNL+-+-# 2PzPP+-+PzP" 1tR-+Q+RmK-! xabcdefghy Sawyer s BDG Keybook II (1999) only gives 9 Nxd4? Qxd4+ 10 Kh1 Bd7 -+. Peter Leisebein, a strong German BDG correspondence player, suggests this line might be playable. Commenting on the game Leisebein-Matse Rohde, corr. 2000, Leisebein states, 9 Nxd4 Qxd4+ 10 Kh1 is perhaps weaker? My opinion is that not enough games have been played with the 9 Nxd4 line. The only extant game, Richard-Sparka, Germany 1982, is examined in the Historical Section. UON 28 May - Aug 2011 Zilbermints Gambit 51

20 B 9 Ne5 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Ne5 XABCDEFGHY 8r+lwqk+-tr( 7zppzp-vlpzpp' 6-+-+psn-+& 5+-+-sN-vL-% 4-+-sn-+-+$ 3+-sNL+-+-# 2PzPP+-+PzP" 1tR-+Q+RmK-! xabcdefghy 9 Ne Qe1 Nf5 -+ is another line of analysis from Sawyer s BDG Keybook II, page 234. And again, as I stated before, limited experience exists with these lines. Below are two games with this line. Searson Reilly, IECC mail tournament, 2000, saw 9 Ne5 c5 10 Ne4 Nf5 11 Bb5+ Nd7 12 Qh5 g6 13 Bxe7 Qxe7 14 Qd1 Be3 15 Bxd7+ Bxd7 16 Nf6+ Kd8 17 Qxd7+ Qxd7 18 Nfd7 Nxf1 19 Rxf1 f5 20 Nxc5 Kc8 21 Rd1 Rd8 22 Rxd8 Kxd8 23 Nxb7 Ke7 24 Nc5, draw. I think White could win here, with precise play. Georg Rindel Cesar Musitani, IECG 2000, saw 9 Ne Qe1 Nd5 11 Nxd5? Better is 11 Bxe7 Bxg5 12 Nc3 f5! 13 Rd1 Qd6 14 Kh1 Bf6 15 Nf3 c5 16 Ne2 Nxf3 17 Rxf3 Qe5 18 Bc4 Rd8 19 Rxd8 Bxd8 20 Qd2 Bc7 21 Rh3 a6 22 Nf4 Qxf UON 28 May - Aug 2011 Zilbermints Gambit 52

21 C 9 Bf4 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Bf4 XABCDEFGHY 8r+lwqk+-tr( 7zppzp-vlpzpp' 6-+-+psn-+& % 4-+-sn-vL-+$ 3+-sNL+N+-# 2PzPP+-+PzP" 1tR-+Q+RmK-! xabcdefghy After 9 Bf4 Sawyer gives 9. Bc5+! an exclamation point (!). But all is not so clear. 10 Kh1 Nxf3 11 Qxf Sawyer, BDGK II, p.234. This analysis could be improved. (9. Nd5 is interesting editor) ABCDEFGHY 8r+lwq-trk+( 7zppzp-+pzpp' 6-+-+psn-+& 5+-vl-+-+-% vL-+$ 3+-sNL+Q+-# 2PzPP+-+PzP" 1tR-+-+R+K! xabcdefghy I. 12 Qh3?! fails because of 12 e5! 13 Qh4 ef4 14 Rxf4 h6 15 Rad1 Bd6! =+; and if 15 Raf1 Nh7! -+. UON 28 May - Aug 2011 Zilbermints Gambit 53

22 II. 12 Bg5, attempting to transpose into regular lines of Nxf3 in the Euwe. Now, if Black plays 12 Be7, White gets the advantage after 13 Qh3 e5 14 Qh4! The resulting position is a move up on Zilbermints-Kopiecki, Blitz-Discussion-Match II, 2001/2002, Games However, some independent variations may arise. These may or may not transpose into regular Nxf3 lines a tempo up. A) 12 Bd4? 13 Qh3! g6 (13 e5? 14 Qh4! and White has a winning attack; 13 h6? 14 Bxh6! e5 15 Qh4, winning) 14 Qh4 Kg7 15 Ne4 (15 Bh6+ is also good, but less forceful) Bxb2 16 c3!! and White wins in all variations. B) 12 Qd4! is the best move. There may follow: B1) 13 Bxf6 Qxf6 14 Qxf6 gf6 15 Rxf6 Be7 16 Rf2 f5! 17 Bc4 Rf6 18 Re1 Bc5 19 Rfe2 Kf7 =+. Black is a solid pawn up. He will soon consolidate, via Bd7-Re8. B2) 13 Nb5!? falls just short of the mark. Although the Nb5 attacks the Black Queen and hits c7, Black has two ways of beating back the attack. B21) 13 Qd8? 14 Rad1! Qe7 15 Qh3 e5 16 Qh4 e4 17 Rxf6?! ed3 -+ ; 17 Bxf6 gxf6 18 Bxd4 f5 19 Qxe7 Bxe7 20 Bxf5 =/ += B212) 13 Qd8? 14 Qh3 e5 15 Qh4! ++-. B22) 13 Qg4! 14 Bxf6 Qxf3 15 Rxf3 gxf6 16 Nxc7 Rb8 17 Nb5 ( 17 Rxf6? a6! =++) leaves Black a solid pawn up. =++ B221) 13 Qg4! 14 Nxc7? Qxg5! 15 Nxa8 Bd6! =+ C) 12 Qd4! 13 Rad1 Qg4 14 Bf6 Qxf3 15 Rxf3 gf6 16 Ne4 Be7 17 Nxf6 Bxf6 18 Rxf6 Kg7 19 Rdf1 Bd7 leads to an endgame where Black is a solid pawn up. He will soon consolidate by Rae8 - Bc6 -++ These variations lead me to conclude that 9 Bf4 is effective only if 9 Bc5+! Is not played. This is because the White Bishop is on the wrong square f4 rather than g5. Black has just barely enough time one or two extra moves to consolidate his game. It is possible however, that future analyses might find improvements for White in the 9 Bf4 Bc5+! line. UON 28 May - Aug 2011 Zilbermints Gambit 54

23 D 9 Be4 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Ne4 XABCDEFGHY 8r+lwqk+-tr( 7zppzp-vlpzpp' 6-+-+psn-+& vL-% 4-+-snN+-+$ 3+-+L+N+-# 2PzPP+-+PzP" 1tR-+Q+RmK-! xabcdefghy 9 Ne4 centralizes the Knight, but its true value is still far from certain. 9 Be7 10 Nxf6+ Bxf6 11 Ne5 Nf5 12 Bxf6 Qxf6 13 Qe2 Qg5 14 Bxf5 exf5 The game score Antonio Costa Isaiah Da Silva, Brazil CXEB, BRA TB1 B correspondence, 1996 stops here with 0-1. However, 15 Ng6+! wins a Rook for the Knight. What am I missing here? Did White stop sending the moves? Or is 0-1 a typographical error? Or was White really stupid enough to resign in a winning position? I have no idea. 9 Nc6 10 Resigns!!? was the game Timothy Sawyer John H. Galvin, USA APCT correspondence, White resigned just as all the fun was going to start! My analyses with James Torricelli show that there is nothing to be afraid of here. UON 28 May - Aug 2011 Zilbermints Gambit 55

24 Sawyer Galvin, APCT corresp Analyses by Zilbermints and James Torricelli, January 13, 2005: 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Ne4 Nc6 XABCDEFGHY 8r+lwqk+-tr( 7zppzp-vlpzpp' 6-+n+psn-+& vL-% 4-+-+N+-+$ 3+-+L+N+-# 2PzPP+-+PzP" 1tR-+Q+RmK-! xabcdefghy Editor Note: Instead of the Nc6?! retreat, The Fritz idea of 9 Nxe4 looks more promising for Black. For example: 9...Nxe4 10.Bxe7 Qxe7 11.Bxe4 Nxf3+ 12.Bxf3 Qc5+ and White seems to have nothing for his 2 pawn deficit. Another line is: 9.Nxe4 10.Bxe7 Qxe7 11.Nxd4 Nf6 12.Qf3 Qc5. Back to the original analysis: a) 10 Nxf6! gf6 11 Bh6 e5 12 Qe2 Bc5+ 13 Kh1 Bd7 14 Rad1 Qe7 15 a3 f5 16 Bg7 Rg8 17 Bxe5 Nxe5 18 Qxe5 Qxe5 19 Nxe Nxd7 Rxd7 21 Bxf5 Rd7 22 Bxd7+ Rxd7 23 Rxd7 Kxd7 24 Rxf7+ Ke8 25 Rxh7 and White wins! a1) 10 Nxf6+! gf6 11 Bh6 Bf8? 12 Bxf8 Kxf8 13 Qd2 f5 14 Qh6+ Ke7 15 Rad1 Bd7 16 Bxf5! ef5 17 Rfe1 Be6 18 Qg5+ Ke UON 28 May - Aug 2011 Zilbermints Gambit 56

25 a2) 10 Nxf6+! gf6 11 Bh6 f5 12 Qe2 Nd4 13 Qe5 Nxf3+ 14 Rxf3 f6 15 Qb a3) 10 Nxf6+! gf6 11 Bh6 Rg8 Suggested by Edward Kopiecki of New York. 12 c3! Bc5+ 13 Kh1 Qe7 14 Qc2! f5 15 Rae1 Rg6 16 Bf4 +-. White has good attacking chances here. The f-pawn will fall and White s piece activity may even net the h-pawn! I should note that the moves 12 c3! and others came to me blindfold! I was eating breakfast on January 17, 2005 when it struck me: 12 c3! Bc5+ 13 Kh1 Qe7 14 Qc2 f5 15 Rae1 Rg6 16 Bf4 += Thus, against 9 Ne4 the response 9 Nc6?! is unsatisfactory. 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Ne4 Be7 Peter Leisebein W. Bauer Correspondence, 2001 [9 Kh1 Nc6 Leisebein gives (9 Bxc3 10 bxc3 Nc6 -+) 10 Qe1 (10 Ne4 Be7 11 Qe1 Nxe4 12 Bxe7 13 Bxe4 Nd8 14 Bd3 -+) 10 h6 11 Bh4 (11 Qh4 Bxc3 12 bxc3 Rf8 13 Bd2 Rg8 14 Rad1 Qe7) 11 Bd7 12 Ne5 Ne5 13 Qxe5 Bd6 14 Qd4 Be7 15 Ne4 Bc6 16 Bxf6 Bxf6 17 Nxf6 gxf6 18 Qxf6 Qxf6 19 Rxf6 Rd8 20 Raf1 Rd7 21 Kg1 h5 -+ Leisebein) 10 Ne5 Nf5 11 Nxf6 gf6?! [11 Bxf6! (Leisebein) 12 Bxf6 Qxf6 13 Qe2 ( Rae1 Qe7 -+ Leisebein] 12 Nxf7! Kxf7 13 Qh5+ Kg8 14 Rxf5! Qd4+ [14 ef5? 15 Bc4+!] 15 Rf2 Bd7 16 Raf1 Qc5 17 h4 Rf8! [17 Re8? Was seen in Capdevila-Brizzio/Argentina 1960, 1-0/25] 18 b4! [18 Kh1 Rf7 19 b4 Qe5 20 Qe2 Qd5 = ] 18 Qd4 19 Kh1 Rf7 20 Bh6 1-0 There might follow 20 f5 21 Rf4 Qd6 22 Rg4+, winning. UON 28 May - Aug 2011 Zilbermints Gambit 57

26 Addendum Additional Games 1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 9 c6 9 Nxf3 10 Qxf3 a6 11 Rad1 c6 12 Ne4 Qa5 13 Qe g4 Nd4 15 Qe4! g6 16 Nxd4 Qh4 17 Qf3 c5 18 Ne2 Rb8 19 Qg3 Qxg3 20 Nxg3 b6 21 g5 Bb7+ 22 Be4 Bxe4+ 23 Nxe4 Rfd8 24 Nf6+ Kg7 25 Rad1 Rd4 26 c3 Rxd1 27 Rxd1 h6 28 h4 hxg5 29 hxg5 Rh8+ 30 Kg2 Rh4 31 Kg3 Ra4 32 a3 b5 33 Rd8 b4 34 Rg8 mate, Zilbermints-Capabonker, 3 0 rated blitz, 8/5/ Nxf3 10 Qxf3 Rb8 11 Rad1 Bd7 12 Ne4 Bc6 13 Bb5 Bxb5 14 Rxd8 Rxd8 15 Nxf6+ gxf6 16 Bxf6 Bxf6 17 Qxf6 Bxf1 18 Qxh8+ Ke7 19 Qe5 Rd6 20 h3 Ba6 21 Qg5+ Ke8 22 Qg8+ Ke7 23 Qxh7+ Rd1 24 Kh2 Rd2 25 Qh4+ Kd7 26 Qf4 Rxc2 27 Qxf7+ Kd6 28 h4 b6 29 Qf4 Ke7 30 Qe4 Rc4 31 Qh7+ Kd6 32 h5 Bb7 33 Qg6, 1-0, Zilbermints-guest3165, 10 0 unrated blitz, Internet Chess Club, 29 January Nxf3 10 Qxf Qh3 g6 12 Rd1 Nd5 13 Bh6 Re8 14 Qf3 f5 15 b4 c6 16 g4 b5 17 Bb3 Bb7 18 gf ef 19 Rd2 Bf6 20 Nd5 cd 21 Rfd1 Qb6 22 Bd5 Bd5 23 Qd5 g5 24 Qf7 Qe6 25 Qe6 Re6 26 h4 gh4 27 Rd7 Rad8 28 Ra7 Kh8 29 Rdd7 Re1+ 30 Kg2 Rg5+ 31 Kf2 Bd4+? 32 Rd4 eventually 1-0 on time, Zilbermints Dragomir Toman, Round 1, G/5 minutes blitz tournament, Somerset, New Jersey, 25 May h6 10 Bf4 Nxf3 11 Qxf Rad1 Bd7 13 Nb5 Nd5 14 Be5 Bc6 15 Qg3 Bf6 16 Bf6 Nxf6 17 Bh7+ Kxh7 18 Rxd8 Rfd8 19 Nc3 Rd7, DRAWN, Zilbermints-Ursus, correspondence, c5 10 Nxd4 cxd4 11 Bxf6 gxf6 12 Ne4 Bd7 13. Qf3 f5 14. Qh5 Qb6 15. Ng5 Bxg5 16. Qxg5 Qd6 17. Qf6 Rf8 18. Rae1 Qe7 19. Qxf5 O-O-O 20. Qa5 Kb8 21. Qe5+ Ka8 22. Qxd4 Bc6 23. Qf2 Qg5 24. Re3 Rd5 25. Rg3 Qe5 26. Re1 Qd6 27. Rf3 f5 28. Rfe3 e5 29. Bxf5 Bd7 30. Rf3 Bxf5 31. Rxf5 Rxf5 32. Qxf5, Black forfeits on time, 1-0, Zilbermints-Patrik Schoupal, Game 1/10, BDG Euwe Defense Zilbermints Gambit Match, 27 August c5 10. Nxd4 cxd4 11. Bxf6 gxf6 12. Ne4 Bd7 13. Qf3 f5 14. Qh5 Qb6 15. Ng5 Bxg5 16. Qxg5 Qd6 17. Qf6 Rf8 18. Rae1 Qe7 19. Qxf5 O-O-O 20. Qa5 Kb8 21. UON 28 May - Aug Zilbermints Gambit Addendum 58

27 Qe5+ Ka8 22. Qxd4 Bc6 23. Qf2 Qg5 24. Re3 Rd5 25. Rg3 Qe5 26. Re1 Qd6 27. Rf3 f5 28. Rfe3 e5 29. Bxf5 Bd7 30. Rf3 Bxf5 31. Rxf5 Rxf5 32. Qxf5, Black forfeits on time, 1-0, Zilbermints-Schoupal BDG Match, Game 2/10, 27 August c5 10. Bxf6 Bxf6 11. Ne4 b6? 12. Nxd4 cxd4 13. Qf3 Rb8 14. Nxf6+ gxf6 15. Bb5+ Kf8 16. Qh3 f5 17. Qh6+ Kg8 18. Rf3 f4 19. Qxf4 Bb7 20. Qxf7# 1-0 Zilbermints-Schoupal BDG Match, Internet Chess Club, Game 9/10, c5 10 Bxf6 Bxf6 11 Ne4 Be7 12 Qh5 g6 13 Qh6 Bd7 14 Qg7 Rf8 15 Nf6+! Bxf6 16 Rxf6 Qa5 17 Raf Rxf7 Rxf7 19 Rxf7 e5 20 Qxh7 e4 21 Bf1 d3 22 cxd3 exd3 23 Qxg6 d2 24 Qc2+ Kb8 25 Be2 Bg4 26 Bd1 Qe5 27 Rf1 Qe1 28 Kg1 Rf8 29 Bf3 Rxf3 30 gxf3 31 Qd3?? Here 31 Qc3! draws by perpetual check. 31 d1/q 32 Qxd1 Qe3+ 33 Rf2 Bxd1 34 Kg2 b5 35 h4 a5 36 h5 Bxh5, 0-1, Zilbermints- FM Tomas Acosta (2276), 15-minute unrated game, Internet Chess Club, 1/30/2006. This was the only game I came close to winning, and that was because the dangerous freeing move f5! was blocked. In the other games we played, I allowed f5 to be played, and lost. 9 c5 10 Bxf6 Bxf6 11 Ne4 Be7 12 Nxd4 cxd4 13 Qh5 g6 14 Qh6 f5 15 Qg7 f5 16 Qxh7 fxe4?? 17 Bb5+! Bd7 18 Qxg6+ 1-0, Zilbermints TaoPhoenix, 17 minutes with 17 seconds increment, unrated blitz, Internet Chess Club, 24 July c5 10 Bxf6 Bxf6 11 Ne4 Be7 12 Nxd4 cd4 13 Qh5 g6 14 Qh6 Qd5 15 Qg7 Rf8 16 Nf6+ gf6 17 Rxf6 Bd7 18 Re1 Bc6 19 Be4 Qxa2 20 Bxc6 bxc6 21 Ref Rxf7 Rxf7 23 Qxf7 Qxb2 24 Qxe6+ Kb8 25 Qxc6 Qb7 26 Qf6 Qb6 27 Qe5+ Qd6 28 Rb1+ Ka8 29 Qe4+ Qd5 30 Qe7 h5 31 h3 Rb8 32 Ra1 Qb7 33 Qf6 Qb6 34 Qf3 Rb7 35 Re1 a6 36 Re8+ Ka7 37 Qf8 Qb1+ 38 Kh2 Qxc2 39 Ra8+ Kb6 40 Qd6+ 1-0, Zilbermints-chapablanca2000, G/3 minutes blitz, Internet Chess Club, 16 October c5 10 Bxf6 Bxf6 11 Ne4 Be7 12 Qh5 g6 13 Qh6 f5?! 14 Qg7 Rf8 15 Qxh7 fxe4?? 16 Bb5+! Black resigns, Zilbermints-chapablanca2000, G/3 minutes blitz, Internet Chess Club, August 11, UON 28 May - Aug Zilbermints Gambit Addendum 59

28 9 c5 10 Bxf6 Bxf6 11 Ne4 Be7 12 Qh5 g6 13 Qh6 a6 14 Rad1 Qxb2 15 c3 f5 16 Qg7 Rf8 17 Qxh7 Bd7 18 Qxg6+ Kd8 19 Ng5 Bxg5 20 Qxg5+ Kc8 21 Qe7 Rg8 22 Qxc5+ Bc6 23 Rf2 Rxg2 24 Rxb2 Rxb2+ 25 Be4 fxe4 26 Rg1 Kc7 27 Qd6+ Kb6 28 Qd4+ Kc7 29 Qe5+ Kb6 30 Qd4+ Kc7 31 Qg7+ Kb6 32 c4 Rc2 33 Rb1+ Kc5 34 Qg5+ Kxc4 35 h4 Bd5 36 a3 Rf8 37 Rb4+ Kc3 38 Qg3+ Rf3 39 Qe5+ Kd2 40 Qd4+ Rd3 41 Qf2+ Kc1 42 Qf4+ Black overstepped on time, Zilbermints-chapablanca2000, Game/3 minutes blitz, ICC, 8 October c5 10 Bxf6 Bxf6 11 Ne4 Be7 12 Qh5 g6 13 Qh6 a6 14 Rad1 Bc6 15 c3 Qe5 16 Rfe Ng3 Rxd3! 18 Qc1 Rxd1 19 Qxd1 Qd5 20 Qe2 Bh4 21 Rd1 Qg5 22 Ne4 Qe5?? 23 Nd6+! Black resigns!, Zilbermints-chapablanca2000, Game/3 minutes blitz, ICC, 8 October d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 9 c5 10 Nxd4 cxd4 11 Bxf6 Bxf6 12 Bb5+ Bd7 13 Bxd7, Black resigns!, Zilbermints-NN, Internet Chess Club, 29 May Analysis shows that after 13 Qxd7? 14 Rxf6! wins. Therefore after 13 Kxd7 14 c3 Kc8 15 cxd4 Qxd4 16 Qf3! Qb6 17 Rae1 Re8 += 9 Nc6 10. Qe1 h6 11. Bf4 Nd5 12. Bd2 Nxc3 13. Bxc3 Bf6 14. Bd2 Qe7 15. Qg3 Bd7 16. Qxc7 O-O 17. Qg3 Kh8 18. c3 Rad8 19. Bf4 e5 20. Rae1 exf4 21. Qxf4 Qc5 22. Bb1 Ne7 23. Nd4 Ng6 24. Bxg6 fxg6 25. Qe4 Qg5 26. Rd1 Bxd4 27. Qxd4 Bc6 28. Rxf8+ Rxf8 29. Rg1 Rd8 30. Qf2 Rd2 31. Qf8+ Kh7 32. Qf1 Rxb2 33. h3 Rxa2 34. Kh2 Rxg Rxg2 Qxg Qxg2 Bxg2 37. Kxg2 a5 38. Kf3 g5 39. Ke2 Kg6 40. Kd3 Kh5, White resigns, 0-1, Zilbermints-Schoupal, BDG Match, Internet Chess Club, Game 3/10, 27 August Nc6 10. Qe1 h6 11. Bd2 Nb4 12. Bb5+ c6 13. Ba4 Nbd5 14. Bb3 Nxc3 15. Bxc3 Bd7 16. Rd1 Qc7 17. Be5 Qa5?? 18. Qxa5, Black resigns, Zilbermints-Schoupal, BDG Match, Internet Chess Club, Game 4/10, Nc6 10. Qe1 Nd5 11. Bxe7 Qxe7 12. Qg3 Nxc3 13. Qxg7 Rf8 14. Qxc3 Bd7 15. Be4 O-O-O 16. Rad1 f5 17. Bd3 Qb4 18. Qg7 Qg4 19. Qxg4 fxg4 20. Ng5 h6 21. Nf7 Rde8 22. Nxh6 e5 23. Nf7 Be6 24. Ng5 Bd5 25. Bf5+ Kb8 26. Rxd5 Nd4 27. Bd3 Nxc2 28. Rxf8 Rxf8 29. Kg1 Ne3 30. Rd7 Kc8 31. Rf7 Rd8 32. Be2 Rd2 33. UON 28 May - Aug Zilbermints Gambit Addendum 60

29 Kf2 Nd Ke1 Rxb2 35. Kxd1 b6 36. Ne6 Rxa2 37. Rxc7+ Kb8 38. Bxg4 Rxg2 39. Bf3 Rxh2 40. Rb7+ Kc8 41. Rxa7 Rh6 42. Ng5 Rd Ke1 b5 44. Ne4 Rd4 45. Ra5 b4 46. Rb5 Kc7 47. Nd2 Kd6 48. Ke2 Ke6 49. Nb3 Rc4 50. Bd5+ Kf5 51. Bxc4, Black resigns, Zilbermints-Schoupal, BDG Match, ICC, Game 10/10, Bxf6 Bxf6 10 gf6 11 Nxd4 Qxd4 12 Qh5 f5 13 Be2 Qe5 14 Rae1 Qg7 15 Qh3 Bd7 16 Qe3 h5 17 Bf3 h4 18 Bd g3 h3 20 g4 fxg4 21 Bxg4 c5 22 Rg1 Kh4 23 Qxh3+ Qh7 24 Qe3 Bc6+ 25 Bf3 Bxf3+ 26 Qxf3 Rab8 27 Rg3 b6 28 Rh3 Rg8 29 Rxh7+ Kxh7 30 Qxf7 Rg7 31 Qh5+ Kg8 32 Qe5 Kf7 33 Qxb8 Rg6 34 Rf1+ Rf6 35 Rxf6 Kxf6 36 Qf4+ Kg7 37 Ne4 a6 38 Qe5 Kf7 39 Ng5+ Bxg5 40 Qxg5 b5 41 h4 c4 42 h5, 1-0, Zilbermints-Capabonker, ICC 3 0 rated blitz, 11/27/ gf6 11 Nxd4 Qxd4 12 Qh5 f5 13 Rad1 Qg7 14 Rde1 Kf8 15 Re2 Bd7 16 Rfe1 Bh4 17 g3 Bf6 18 h3 Bxc3 19 bxc3 Qxc3 20 Qf4 Be8 21 Qd6+ Kg7 22 Qe7 c5 23 Rxe6 Bc6+ 24 Kh2 Qd2+ 25 R1e2 Qc1 26 Re1 Qd2+ 27 R6e2 Qh6 28 Qe5+ Qf6 29 Bxf5 Rad8 30 Qxc5 Rd5 31 Qe3 Rxf5 32 Qg1 Rd8 33 h4 Rd4 34 c3 Rg4 35 Kh3 Rh5 36 Qf2 Qxf2 37 Rxf2 Rc4 38 Re3 Bd7+ 39 Rg2 Rf5 40 Rd2 Bc6+ 41 Kg1 Rg4 =+, /67 on time, Zilbermints-guest3165, 10 0 unrated blitz, Internet Chess Club, 29 January gf6 11 Nxd4 Qxd4 12 Qh5 Bd7 13. Rad1 Qc5 14. Qxc5 Bxc5 15. Ne4 Be7 16. Nxf6+ Bxf6 17. Rxf6 Ke7 18. Rdf1 Raf8 19. Rh6 f5 20. Re1 Rf6 21. Rh4 h5 22. Rf4 Kf7 23. Bc4 Re8 24. Ref1 Kg6 25. R4f3 b5 26. Bd3 Ref8 27. Rg3+ Kh6 28. Re1 a6 29. c4 b4 30. c5 Re8 31. Bxa6 e5 32. Bc4 e4 33. Rge3 Be6 34. Bxe6 Rfxe6 35. g3 Kg5 36. Kg2 f4 37. gxf4+ Kxf4 38. Kf2 Re5 39. Rc1 Ra8 40. a3 bxa3 41. bxa3 Ra5 42. Rec3 e Ke2 Rb5 44. Rc4+ Kf5 45. R1c2 Rb3 46. R4c3 Rb5 47. Rxe3 Rexc5 48. Rxc5+ Rxc5 49. Kd2 Kf4 50. Rc3 Ra5 51. Rd3 c5 52. Rd5 Kg4 53. Rd3 c4 54. Rd4+ Kg5 55. Rxc4 Rxa3 56. Rc2 Rh3 57. Kc1 Kg4 58. Kd1 h4 59. Ke1 Kf3 60. Rc3+ Kg2 61. Rc2+ Kg1 62. Re2 Rxh2 63. Rxh2 Kxh2 64. Kf2 h3 65. Kf1 Kh1 66. Kf2 Kh2 67. Kf1 Kg3 68. Kg1 Kf3 69. Kh2 Kg4 70. Kh1 Kf5 71. Kh2 Ke6 72. Kxh3, 1/2-1/2, Zilbermints-Schoupal, BDG Match, Internet Chess Club, Game 5/10, 27 August gxf6 11. Nxd4 Qxd4 12. Qh5 Bd7 13. Rad1 Qc5 14. Qh6 O-O-O 15. Ne4 Qb6 16. Nxf6 Bxf6 17. Qxf6 h5 18. b3 h4 19. h3 Rhe8 20. Qxf7 e5 21. Be4 Be6 22. Rxd8+ Qxd8 23. Qf2 Kb8 24. Qe2 Bd5 25. Rd1 Qa5 26. a4 Qc5 27. Qh5 Qe7 28. UON 28 May - Aug Zilbermints Gambit Addendum 61

30 Bxd5 cxd5 29. Rxd5 e4 30. Qe2 Qa3 31. Rd1 e3 32. Kh2 Qb2 33. Rd3 Qe Kh1 Qf4 35. Kg1 Qg3 36. Rd1 Rg8 37. Rd3 Re8 38. Rd1 Qf4 39. Rf1 Qd4 40. Rd1 Qe4 41. Rd3, 1/2-1/2, Zilbermints-Schoupal, BDG Match, Internet Chess Club, Game 6/10, 27 August Ne4 11 Nxd4 Qxd4 12 Qf3? Bd7 13 Rad1 Qb6 14 Ne4 Qb2 15 Rb1 Qd4 16 Rb7 c5 17 Nf6+? Qxf6 18 Qe4 Qd4 19 Qf Rfb1 Qd5 21 Rb8+ Kc7 22 R1b7+ Kd6 23 Qf4+ e5 24 Rd7+ Rxd7 25 Qa4 Rxb8 26 Qa6+ Rb6 27 Qa4 e4 28 Qe4 Qe4 29 Be4 Ke5, 0-1, Zilbermints-Capabonker, 3 0 rated blitz, ICC, Nxd4 Qxd4 12 Ne4! Qb2 13 Qf3 Qe5 14 Rae1 Qc7 15 Nf6+ gf6 16 Qf6 Rf8 17 Bh7! Qe7 18 Qb2 b6 19 Be4 Bb7 20 Rd1 Rd8 21 Rxd8 Kd8 22 Qc3 Kc7 23 a4 f5 24 Bf3 e5 25 a5 e4 26 ab6 ab6 27 Be2 Rd8 28 Qe3 Qe5 29 c3 Rf8 30 Rb1 c5 31 c4 f4 32 Qb3 Qe6 33 Bf1 f3 34 Qe3 f2 35 h3 Qc4 36 Bc4 f1/q 37 Bf1 Rf1 39 Rf1, 1-0, Zilbermints-Capabonker, ICC 3-minute rated blitz, Nd4 Qd4 12 Qh5! g6 13 Qh6 f5 14 Bc4 b5 15 Bb3 b4 16 Ne2 Bxb2 17 Rad1 Qe7 18 Nf4 Bg7 19 Qh3 Kf7 20 Rfe1 Rd8 21 Rd8 Qd8 22 Qh7 Qd2 23 Qg6+ Kf8 24 Rf1 e5 25 Ne6+ Be6 26 Bxe6 1-0, Zilbermints-Capabonker, ICC 3 0 rated blitz, Be7 11 Nf5 12 Nf6 Qf6+ 13 Qe g4 Nd4 15 Qe4 g6 16 Nd4 Qh4 17 Qf3 c5 18 Ne2 Rb8 19 Qg3 Qg3 20 Ng3 b6 21 g5 Bb7 22 Be4 Bxe4 23 Ne4 Rfd8 24 Nf6+ Kg7 25 Rad1 Rd4 26 c3 Rxd1 27 Rd1 h6 28 h4 hxg5 29 hg Rh8+ 30 Kg2 Rg2 31 Kg3 Rd4 32 a3 b5 33 Rd8 b4 34 Rg8 mate, Zilbermints Capabonker, August 5, 2004, ICC 3 0 rated blitz. 11 Nf5 12 Qe1 Bh4 13 g3 Be7 14 Rd Nf6+ Bxf6 16 Bxf5 Qb6 17 Bd3 Qxb2 18 Qe4 g6 19 Rb1 Qxa2 20 Bc4 Qa4 21 Qe2 Bg7 22 g4 e5 23 h3 Be6 24 Bxe6 fxe6 25 Nxe5 Rxf1+ 26 Rxf1 Rf8 27 Rxf8 Bxf8 28 Qe3 Bg7 29 Nd3 Qa1+ 30 Kg2 e5 31 Qe4 Qd1 32 Qc4+ Kh8 33 Qe6 Qd2+ 34 Nf2 h6 35 Qe8+ Kh7, 0-1/51, Zilbermints-Capabonker, 3 0 rated blitz, ICC, 8/8/2004. UON 28 May - Aug Zilbermints Gambit Addendum 62

31 12 Nd4 12 Qe1 Nxf3? 13 Rxf3 Qb6 14 b3 Qc7 15 Rd Nf6+! Bf6 17 Qe4 Qe5?? 18 Qxh7 mate, Zilbermints-Capabonker, 2-minuted rated blitz, Internet Chess Club, Qe1 Nxf3? 13 Rxf3 Qc7 14 Rd1 f6 15 Qh5 Qe5 16 Nc3 Bd7 17 Bg6+ Kd8 18 Rfd3 Kc7 19 Rxd7 Kb6 20 Bd3 g5 21 Qa4 Bc5 22 Qb3+, 1-0, Zilbermints- Capabonker, 2 0 rated blitz, ICC, Ne4 Qxb2 13 Rab1 Qxa2? 14 Nd6+! Kf8 15 Qh5 g6 16 Qf3 Qd5 17 Qxf6, 1-0, Zilbermints-Capabonker, 8/8/2004, 3 0 rated blitz, ICC. 12 Qxd4 13 Qh5 g6 13 Qh5 Qd5 14 Qe2 f5 15 Ng Rad1 Qa2 17 c4 Bf6 18 Rf2 Bd4 19 Bb1 Qa1 20 Bxf5 Qa5 21 Bxe6 Bxe6 22 Rxf8 Rxf8 23 Qxe6 Kh8 24 Rxd4?? Qa1+ 0-1, Zilbermints-Capabonker, ICC 3 0 rated blitz, 2/2/ Qh6 Qxb2 15 c3 15 Rab1 Qd4 16 Rbd1 f5 17 Ng3 Qf6 18 Ne4 Qf7 19 Bc4 Bd7 20 Rd7 Kd7 21 Rd1 Kd7 22 Nd6+ Bd6 23 Rd6 Re8 24 Qe3 Kc7 25 Qe5 Rad8 26 Rxe6 Kc8 27 Rxe8 Qxe8 28 Be6+ Rd7 29 Bxd7 + Qxd7 30 Qh8+ Kc7 31 Qe5+ Qd6, 0-1/42, Zilbermints-Capabonker, ICC 3 0 rated blitz, 10/22/ Rab1 Qe5 16 Rbe1 Bf8 17 Qh3 Qd4 18 Qf3 f5 19 Ng5 e5 20 Re2 Be7 21 Rfe1 Bxg5 22 Rxe5+ Kf7 23 Qe2 Bd7 24 Re7+ Kf6 25 Re6+ Bxe6 26 Qxe6+ Kg7 27 Bc4 Rhe8 28 Qf7+ Kh6 29 Rf1 Re5 30 Bb3 Rae8 31 h3 Re1 32 Rxe1 Rxe1+ 33 Kh2 Bf4+ 0-1, Zilbermints-Capabonker, ICC, 11/8/ Rad1 Rg8 16 Ng5 Bxg5 17 Qxg5 Qxg7 18 Bc4 Bd7 19 Qd2 Rd8 20 Qa5 a6 21 Qc7 Qc3 22 Bb3 b5 23 Qd6 c5 24 a4 c4 25 Ba2 Qxc2 26 Bb1 Qxa4 27 Be4 b4 28 Ra1 Qb5 29 Rad1 b3 30 Qf4 f5 31 Bb1 e5 32 Rfe1 e4 33 Bxe4 Kf7 34 Bd5+ Kg7 35 Bxg8 Kxg8 36 Re7 Bc6 37 Rxd8 Be8 38 Rdxe8 Qxe8 39 Rxe8 Kf7 40 Qe5 b2 41 Qe6+ Kg7 42 Rg8 Kh6 43 Qb6 c3 44 Qb3 a5 45 Rb8 a4 46 Qxc3 b1/q, 0-1, White overstepped on time in a won position, Zilbermints- Capabonker, ICC, 3 0 rated blitz, 11/8/2004. UON 28 May - Aug Zilbermints Gambit Addendum 63

32 15 f5 16 Qg7?! 16 Rab1! Qxa2? 17 Qg7 Rf8 18 Qh7 fxe4 19 Rxf8 Bxf8 20 Bxe4, 1-0/26, Zilbermints-Capabonker, 8/16/2005, ICC 5 0 rated blitz. 17 Qxh7 17 Rab1 Qxa2 18 Qxh7 fxe4 19 Be4? Qa3! 20 Bg6+ Kd8 21 Rxf8 Bxf8 22 Rd1+ Bd6 23 Qf7 Bd7 24 Qg8+ Bf8 25 Qxe6 Qe7 26 Qg4 Kc7 27 Qf4+ Kc8 28 Rf1 Bg7 29 Qc4 b5 30 Qd3 Bf6 31 Qf3 Be5 32 Qe4 Bd6 33 Qd4 Kc7 34 Rd1 c5 35 Qh4?? Qxh4 36 Rf1 Qg4, 0-1, Zilbermints-Capabonker, 3 0 rated blitz, ICC, 7 September Post-game 2005 analyses shows that 19 Qg6+ Kd8 20 Rf8 Bf8 21 Be4 Kc7 22 Qf7 Bd7 23 Rb7 Kb7 24 Qd7 = 17 Rab1 Qxa2 18 Qxh7 fxe4 19 Rf8 Bf8 20 Qxg6+ Kd8 21 Be4 Qa3! 22 Rd1+ Kc7 23 Qg3+ Bd6 24 Qg7+ Bd7 25 Qd4 Qc5 26 Qd3 Rf8 27 h3 e5 28 Bf3 Rf7 =+, 0-1/37, Zilbermints-Capabonker, Internet Chess Club 3 minute rated blitz, 10/22/ Rab1 Qxa2 18 Rf2! This is the correct move rather than the dubious 18 Qh7?! Qd5 19 Rf3 f4 20 c4 Qa5 21 Rbf1 g5 22 c5 Bd7 23 Nd6+ Bxd6 24 cxd Rb1 c5 26 Qxb2 Bc6 27 Rf2 Rd6 28 Qb3 Rfd8 29 Bf1 Bd5 30 Qb2 Kb8 31 Rc2 Qc7 32 Rcc1 b6 33 Ra1 Bb7 34 Qf6 Qc6 35 Qxg5 Rd2 36 Qxf4+ Ka8 37 Qg3 R8d3 38 Qg8+ Rd8 39 Qg3 R8d3 40 Qg8+ Rd8 41 Qd3, DRAWN, Zilbermints- Capabonker, ICC 3-minute blitz, fxe4 18 Qxg6+ Kd8 19 Bxe4 Rxf1+ 20 Rxf1 Qe2 21 Bd3 a) 21 Qxa2?? 22 Be4 Kc7 23 Rd1 Bd7 24 Qg3+ Kb6 25 Rb1+ Ka5 26 Qc7+ b6 27 Qxd7 Ba3 28 Qxc6+, 1-0, Zilbermints-Capabonker, ICC 3 0 rated blitz, November b) 21 Qe5! 22 Rd1 Kc7 23 Qe8 Qc5 24 Bg6 Bd6 25 Qf7+ Bd7 26 Rf1?? Rf8! 27 Qxf8 Bxf8 28 Rxf8 Qxf8, o-1, Zilbermints-Capabonker, ICC 3 0 rated blitz, 12/28/2005. UON 28 May - Aug Zilbermints Gambit Addendum 64

33 b1) 21 Qe5! 22 Qg8 Kc7 23 Qf7 Qg5 24 Bg6 Bd7 25 Rd1 Rf8 26 Qh7 Bd6 27 Be4 Qg4 28 Bf3 Qf3 29 gf3 Qxf3 30 Kg1 Bc5+ 31 Rd4 Bxd4+ 32 cxd4 Qe3+ 33 Kg2 Qxd4 34 Qe7 Qd6 35 Qf7 c5 36 h4 c4 37 h5 Qd5+ 38 Kg3 Qe5+ 39 Kg2 Qe4 40 Kg3 e5, 0-1, White overstepped on time, Zilbermints- Capabonker, 8/15/2005, ICC 3 0 rated blitz. c) 21 Qe3 22 Rf3 Qc5 23 Qg8+ Kc7 24 Rf7 b6 25 Qg7 Kd7 26 h4 Bb7 27 Kh2 Re8 28 Bg6 Qd6+ 29 Kh3 Ba6 30 Rf3 Rd8 31 h5 Be2 32 Re3 Bc4 33 h6 e5 34 h7 Be6 35 Kh2 e4+ 36 Kg1 Qd1+ 0-1/49, Zilbermints-Capabonker, ICC 3 0 rated blitz, 2/2/ d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 c6 10 Qe1 Having covered the complicated intricacies of 10 Bxf6 Bxf6, I now turn to the second of four possible moves, 10 Qe1. This move is advocated by the strong German correspondence player Peter Leisebein. White moves his Queen to attack and dares Black to show his hand. 10 c5 11 Nxd4 cxd4 12 Nb5 a6 13 Na3 b5 14 Qf2 Bb7 15 Rad1 Qb6 16 Nb1 h6 17 Bxf6 Bxf6 18 Nd Ne4 Bxe4 20 Bxe4 Rac8 21 Qg3 Qd8 22 Rf3 Rc5 23 Rdf1 Rg5 24 Qf2 Re5 25 Qd3 Rg5 26 Rg3 Rxg3 27 Qxg3 Rc8 28 Rd1 Qc5 29 Rf1 Qe5 30 Qf3 Rc5 31 Bd3 Rc7 32 Qa8+! 1-0, Zilbermints-Capabonker, ICC, 3 0 rated blitz, 12/4/ Nxf3? Is not good, as at it does is help White development while removing a key defender. Five games illustrate the point: 11 Rxf3 Nd5 12 Bxe7 Qxe7 13 Nxd5 cxd5 14 Qg3 g6 15 Qe Rf6! b6 17 Raf1 a5 18 h4 Ba6 19 h5 Bxd3 20 cxd3 Rac8 21 Qg5 Rec8 22 Qh6 e5 23 R1f3 e4 24 dxe4 Qxe4 25 hxg6 Qe1+ 26 Rf1 Qxf1 27 Rxf1 fxg6 28 Rxf8 Rxf8 29 Qd2 Kg7 30 Qd5 Rf7 31 Qd4+ Kf8 32 Qb6 Kg7 33 Qa5 Kg8 34 Qe5 Kf8 35 b4 Re7 36 Qd6 Kf7 37 a4 Re6 38 Qd5 Kf6 39 b5 Re5 40 Qd4 Kf5 41 b6 Re4 42 Qe4+ Ke4 UON 28 May - Aug Zilbermints Gambit Addendum 65

34 43 b7 Kd5 44 b8/q Kc6 45 Qh8 Kd5 46 Qh7 Ke4 47 Qxg6+ Ke3 48 Qf5 Kd2 49 Qe4 Kc3 50 Qd5 Kb4 51 Qc6 Ka5 52 Qb5 mate, Zilbermints-Capabonker, Internet Chess Club, 3 0 rated blitz, 12/4/2005. (Moves 1-13 same) 14 Raf1? This is inaccurate, as it allows the freeing maneuver f5! As the above game suggests, White should play 15 Qe5! and 16 Rf6! preventing Black from developing. 14 f5! 15 Nxd5 cxd5 16 Qe Re3 Qf6 18 Qc7 Qf7 19 Qe5 Bd7 20 g4 Bc6 21 Kg1 Rae8 22 gf5 exf5 23 Qf4 Rxe3 24 Qxe3 25 Qd4 Qg7 26 Qa7 Qb2 27 Qf2 Qe5 28 Rb1 Qe3 29 Qxe3 Rxe3 30 Kf2 Re8 =+, 0-1/47, Zilbermints-Capabonker, ICC 3 0 rated blitz, 2/2/2006. (Moves 1-13 same) 14 Raf1 f5 15 Qe Nxd5 cxd5 17 c4 Qf6 18 Qe2 d4 19 c5 e5 20 Bc4+ Kg7 21 Bd5 Rb8 22 Rb3 Qe7 23 c6 b6 24 Rc1 Be6 25 c7 Rbc8 26 Be6 Qe6 27 Qa6 Ra8 28 Qb7 Rfc8 29 Ra3 e4 30 Rc6 Qd7 31 Rc4 d3 32 Rxa7 Rxa7 33 Qxa7 d2, 0-1, Zilbermints-Capabonker, ICC, 3 0 rated blitz, 2/2/ Nxf3 11 Rxf3 h6 12 Bf4 Bd6 13 Rd1 Bf4 14 Rf4 Qc7 15 Qf1 b6 16 Be4 Bb7 17 Rf6! gf6 18 Qf6 Rf8 19 Rf3 Rd8 20 Re1 Qe7 21 Qh6 a6 22 Ne4 Rd4 23 c3 Rd3 24 Qf4 Kd7 25 Nf6+ Kc8 26 Qe4 Rd6 27 Qe5 Rfd8 28 Ne4 Rd5 29 Qf4 Rf5 30 Qe3 c5 31 Ng3 Rf6 32 Ne4 Be4 33 Qe4 Qc7 34 Qa8 Qb8 35 Qa6 Kc7 36 Qb7 Rd6 37 Qe2 Rf4 38 Qe3 Rf4 39 Qe4 Rg5 40 b4 Qg8 41 bxc5 bxc5 42 Qb7 Kd8 43 Qb8+ Ke7 44 Qc7+ Rd7 45 Qc6 Kf6 46 Qe4 Qg6 47 Qe3 Qf5 48 Qe2 Qf4 49 Qf2 Qf5 50 Qe3 Qe5 51 Qf2 Qf4 52 Qe3 Re5 53 Qf2 Rxe1+ 54 Qxe1 Qd2 55 Qf1 Rd3 Now here 54 Be2+! finally wins a Rook. Unfortunately I overstepped on time. 0-1, Zilbermints-Capabonker, ICC, 3 0 rated blitz, 12/4/ Nxf3 11 Rxf3 Bd7 12. Rd1 Qc7 13. Qf1 h6 14. Bxf6 gxf6 15. Ne4 f5 16. Ng3 O-O-O 17. Re1 h5 18. Nxf5 exf5 19. Rxe7 Qd6 20. Rxd7 Kxd7 21. Bxf5+ Kc7 22. Rd3 Qe5 23. Ra3 Qxf5 24. Rf3 Qe6 25. Rxf7+ Kb8 26. h3 Rd1 27. Qxd1 Qxf7 28. Qd6+ Qc7 29. Qf6 Rd8 30. Qf3 Re8 31. Qf2 Qe5 32. Kg1 Qe1+ 0-1, Zilbermints- Schoupal, BDG Match, Internet Chess Club, Game 7/10, 27 August UON 28 May - Aug Zilbermints Gambit Addendum 66

35 The last of four possible moves is 10 a3?!. It is designed to provoke Black into making inaccurate moves. However, as my game with Schoupal shows, it can transpose into other sub-variations. 10. a3 h6 11. Bxf6 Bxf6 12. Ne4 Nxf3 13. Qxf3 Bd7 14. Rad1 Qe7 15. b4 O-O-O 16. c4 Rhf8 17. b5 Kb8 18. a4 Bd4 19. a5 f5 20. Ng3 g5 21. a6 Qc5 22. axb7 e5 23. Bxf5 cxb5 24. cxb5 Bxb5 25. Rfe1 Bc6 26. Qg4 Bf2 27. Rxd8+ Rxd8 28. Ne4 Bxe4 29. Qxe4 Bxe1 30. Qxe1 Rf8 31. g4 h5 32. h3 hxg4 33. hxg4 Rh Kg2 Rd8 35. Qe2 Rd4 36. Qa2 Qd Qxd5 Rxd5 38. Kf3 Rd4 39. Ke3 Kxb7, 0-1, Zilbermints- Schoupal, BDG Match, Internet Chess Club, Game 8/10, a3 Nxf3? 11 Qxf3 Qb6 12 b Qh3 h6 14 Bxh6 e5 15 Qh4 gxh6 16 Qxh6 Rd8 17 Rxf6 Rxd3 18 Rxf7 Kxf7 19 Rf1+ Ke8 20 Qg6+ Kd8 21 cxd3 Qd4 22 Qg8+ Kc7 23 Rc1 Qe3 24 Nd5+ Kd6 25 Nxe3 a5 26 Nc4+ Kc7 27 Qf7 Kd7 28 Nxe5+ Kd6 29 Qf4 1-0, Zilbermints Pablo Schmidt, 5 0 unrated blitz, BDG match, Internet Chess Club, Game 1/6, January 16, a3 h6 11 Be3 Nxf3 12 Qxf3 Qc7 13 Ne4 Bd7 14 Bd4 e5 15 Be3 Be6 16 c4 Ng4 17 Bc5 f5 18 h3 fxe4 19 Bxe4 Bxc5 20 Bg6+ Ke7 21 hxg4 Rhf8 22 Qe4 Bd4 23 Rae1 Rxf1+ 24 Rxf1 Rf8 25 Re1 Rf4 26 Qd3 Rxg4 27 Bf5 Rh4+ 28 Bh3 Bxh3 29 gxh3 Qd7 30 Kg2 Qe6 31 Qb3 Qg6+ 32 Kh1 b6 33 c5 Qe6 34 Qxe6+ Kxe6 35 cxb6 axb6 36 Kg2 Bxb2 37 Rb1 Bxa3 38 Rxb6 Kd6 39 Ra6 Bc5 40 Kg3 Rf4, =+, 0-1/67, Zilbermints-Pablo Schmidt, 5 0 unrated blitz, BDG Match, Internet Chess Club, Game 2/6, January 16, a3 h6 11 Bh4 Nxf3 12 Qxf Rad1 Qb6 14 Ne4 Nd5 15 Bxe7 Nxe7 16 Nf6+ Kh8 17 Nh7 Rg8 18 Qxf7 Nf5 19 Nf8 Qxb2 20 Ng6+ Kh7 21 g4 Qf6 22 Qxf6 gf6 23 gxf5 exf5 24 Ne7 Be6 25 Bxf5+ Bxf5 26 Nxf5 Rg5 27 Rd7+ Kg6 28 Ne7+ Kh5 29 Rf5 b5 30 Rxg5 hxg5 31 Nc6 Re8 32 Rd1 f5 33 Nd4 f4 34 Kg2 g4 35 h3 g3 36 Rf1 g5 37 h4+ Kg4 38 c3 Re4 39 h5 Kxh5 40 Kf3 Re3+ 41 Kxf4 Rxc3 42 Nxb5, 1-0, Zilbermints-Pablo Schmidt, 5 0 unrated blitz, BDG Match, 85Internet Chess Club, Game 3/6, 1/16/ a3 Nf5 11 Qe Rd1 Qc7 13 Ne5 Nd5 14 Nxd5 cxd5 15 Bxe7 Nxe7 16 Bxh7+ Kxh7 17 Qh4+ Kg8 18 Rf3 Qxe5 19 Rh3 f6 20 Re1 Qf5 21 Qb4 Qf2 22 Rf3 Qh4 23 g3 Qh5 24 g4 Qh4 25 Qxe7 Qxe1+ 26 Kg2 Qe4 27 Kg3 b6 28 Rf4 Qe3+ 29 Rf3 Qe5+ 30 Kh3 Ba6 0-1, Zilbermints-Pablo Schmidt, 5 0 unrated blitz, BDG Match, Internet Chess Club, Game 4/6, 1/16/2007. UON 28 May - Aug Zilbermints Gambit Addendum 67

36 Zilbermints TaoPhoenix; Internet Chess Club; 5 0 unrated blitz 24 July d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 c5 I call 9...c5 the Counter-Strike Sub-Variation. Here it should be noted that my opponent only gave 10 Be3? as White's move. I challenged him to a match... and these two games were the result. 10 Nxd4! Qxd4 Well, his 10 Be3 went out the window. 11 Bxf6 Bxf6 12 Ne4 Be7 13 c3 Qd5 14 Qf Rad1 c6 16 Nf6+!? Bxf6 17 Be4 Qc7 18 Bxh7+! Kxh7 19 Qh5+ Kg8 20 Rxf6! Rd8 21 Rxd8 Qxd8 22 Qxf7+ Kh7 Here I could have forced the draw with 23 Qh5+ Kg8, 24 Qf7+. Instead, I blundered. 23 Rf3?? Qd1+! 24 Rf1 Qg4 25 h3 Qg6 26 Qe8 e5 27 Rf7 Bxh3! 0-1 The next game was much better. Every single move, from beginning to end, was analysed by me years earlier. This was the first time the analysis was tested in practice. My folder shows that I first analyzed this move order on 14 Jan. 1998! UON 28 May - Aug Zilbermints Gambit Addendum 68

37 Game 2: Zilbermints TaoPhoenix;Internet Chess Club 17 minutes with 17 seconds increment, unrated;24 July 2005 (Moves 1-9 as in Game 1) 10 Bxf6 Bxf6 11 Ne4 Be7 12 Nxd4 cxd4 13 Qh5 g6 14 Qh6 f5 15 Qg7 f5 16 Qxh7 fxe4 17 Bb5+! Bd7 18 Qxg Zilbermints-Patrik Schoupal;BDG, Euwe Defense, Zilbermints Gambit 27 August d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 Nc6 10. Qe1 Nd5 11. Bxe7 Qxe7 12. Qg3 Nxc3 13. Qxg7 Rf8 14. Qxc3 Bd7 15. Be4 O-O-O 16. Rad1 f5 17. Bd3 Qb4 18. Qg7 Qg4 19. Qxg4 fxg4 20. Ng5 h6 21. Nf7 Rde8 22. Nxh6 e5 23. Nf7 Be6 24. Ng5 Bd5 25. Bf5+ Kb8 26. Rxd5 Nd4 27. Bd3 Nxc2 28. Rxf8 Rxf8 29. Kg1 Ne3 30. Rd7 Kc8 31. Rf7 Rd8 32. Be2 Rd2 33. Kf2 Nd Ke1 Rxb2 35. Kxd1 b6 36. Ne6 Rxa2 37. Rxc7+ Kb8 38. Bxg4 Rxg2 39. Bf3 Rxh2 40. Rb7+ Kc8 41. Rxa7 Rh6 42. Ng5 Rd Ke1 b5 44. Ne4 Rd4 45. Ra5 b4 46. Rb5 Kc7 47. Nd2 Kd6 48. Ke2 Ke6 49. Nb3 Rc4 50. Bd5+ Kf5 51. Bxc4, Black resigns 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 c5 10. Bxf6 Bxf6 11. Ne4 b6 12. Nxd4 cxd4 13. Qf3 Rb8 14. Nxf6+ gxf6 15. Bb5+ Kf8 16. Qh3 f5 17. Qh6+ Kg8 18. Rf3 f4 19. Qxf4 Bb7 20. Qxf7# b6? seems to be not the ticket. 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 c6 10. a3 h6 11. Bxf6 Bxf6 12. Ne4 Nxf3 13. Qxf3 Bd7 14. Rad1 Qe7 15. b4 O-O-O 16. c4 Rhf8 17. b5 Kb8 18. a4 Bd4 19. a5 f5 20. Ng3 g5 21. a6 Qc5 22. axb7 e5 23. Bxf5 cxb5 24. cxb5 Bxb5 25. Rfe1 Bc6 26. Qg4 Bf2 27. Rxd8+ Rxd8 28. Ne4 Bxe4 29. Qxe4 Bxe1 30. Qxe1 Rf8 31. g4 h5 32. h3 hxg4 33. hxg4 Rh Kg2 Rd8 35. Qe2 Rd4 36. Qa2 Qd Qxd5 Rxd5 38. Kf3 Rd4 39. Ke3 Kxb7, d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 c6 10. Qe1 Nxf3 11. Rxf3 Bd7 12. Rd1 Qc7 13. Qf1 h6 14. Bxf6 gxf6 15. Ne4 f5 16. Ng3 O-O-O 17. Re1 h5 18. Nxf5 exf5 19. Rxe7 Qd6 20. Rxd7 Kxd7 21. Bxf5+ Kc7 22. Rd3 Qe5 23. Ra3 Qxf5 24. Rf3 Qe6 25. Rxf7+ Kb8 26. h3 Rd1 27. Qxd1 Qxf7 28. Qd6+ Qc7 29. Qf6 Rd8 30. Qf3 Re8 31. Qf2 Qe5 32. Kg1 Qe UON 28 May - Aug Zilbermints Gambit Addendum 69

38 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 c6 10. Bxf6 gxf6 11. Nxd4 Qxd4 12. Qh5 Bd7 13. Rad1 Qc5 14. Qh6 O-O-O 15. Ne4 Qb6 16. Nxf6 Bxf6 17. Qxf6 h5 18. b3 h4 19. h3 Rhe8 20. Qxf7 e5 21. Be4 Be6 22. Rxd8+ Qxd8 23. Qf2 Kb8 24. Qe2 Bd5 25. Rd1 Qa5 26. a4 Qc5 27. Qh5 Qe7 28. Bxd5 cxd5 29. Rxd5 e4 30. Qe2 Qa3 31. Rd1 e3 32. Kh2 Qb2 33. Rd3 Qe Kh1 Qf4 35. Kg1 Qg3 36. Rd1 Rg8 37. Rd3 Re8 38. Rd1 Qf4 39. Rf1 Qd4 40. Rd1 Qe4 41. Rd3 {Game drawn by mutual agreement} 1/2-1/2 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 c6 10. Bxf6 gxf6 11. Nxd4 Qxd4 12. Qh5 Bd7 13. Rad1 Qc5 14. Qxc5 Bxc5 15. Ne4 Be7 16. Nxf6+ Bxf6 17. Rxf6 Ke7 18. Rdf1 Raf8 19. Rh6 f5 20. Re1 Rf6 21. Rh4 h5 22. Rf4 Kf7 23. Bc4 Re8 24. Ref1 Kg6 25. R4f3 b5 26. Bd3 Ref8 27. Rg3+ Kh6 28. Re1 a6 29. c4 b4 30. c5 Re8 31. Bxa6 e5 32. Bc4 e4 33. Rge3 Be6 34. Bxe6 Rfxe6 35. g3 Kg5 36. Kg2 f4 37. gxf4+ Kxf4 38. Kf2 Re5 39. Rc1 Ra8 40. a3 bxa3 41. bxa3 Ra5 42. Rec3 e Ke2 Rb5 44. Rc4+ Kf5 45. R1c2 Rb3 46. R4c3 Rb5 47. Rxe3 Rexc5 48. Rxc5+ Rxc5 49. Kd2 Kf4 50. Rc3 Ra5 51. Rd3 c5 52. Rd5 Kg4 53. Rd3 c4 54. Rd4+ Kg5 55. Rxc4 Rxa3 56. Rc2 Rh3 57. Kc1 Kg4 58. Kd1 h4 59. Ke1 Kf3 60. Rc3+ Kg2 61. Rc2+ Kg1 62. Re2 Rxh2 63. Rxh2 Kxh2 64. Kf2 h3 65. Kf1 Kh1 66. Kf2 Kh2 67. Kf1 Kg3 68. Kg1 Kf3 69. Kh2 Kg4 70. Kh1 Kf5 71. Kh2 Ke6 72. Kxh3 {Game drawn because neither player has mating material} 1/2-1/2 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 Nc6 10. Qe1 h6 11. Bd2 Nb4 12. Bb5+ c6 13. Ba4 Nbd5 14. Bb3 Nxc3 15. Bxc3 Bd7 16. Rd1 Qc7 17. Be5 Qa5 18. Qxa5 {Black resigns} 1-0 Bad luck. Here black blundered enormously, giving his queen on spot with 17..Qa5?? UON 28 May - Aug Zilbermints Gambit Addendum 70

39 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 Nc6 10. Qe1 h6 11. Bf4 Nd5 12. Bd2 Nxc3 13. Bxc3 Bf6 14. Bd2 Qe7 15. Qg3 Bd7 16. Qxc7 O-O 17. Qg3 Kh8 18. c3 Rad8 19. Bf4 e5 20. Rae1 exf4 21. Qxf4 Qc5 22. Bb1 Ne7 23. Nd4 Ng6 24. Bxg6 fxg6 25. Qe4 Qg5 26. Rd1 Bxd4 27. Qxd4 Bc6 28. Rxf8+ Rxf8 29. Rg1 Rd8 30. Qf2 Rd2 31. Qf8+ Kh7 32. Qf1 Rxb2 33. h3 Rxa2 34. Kh2 Rxg Rxg2 Qxg Qxg2 Bxg2 37. Kxg2 a5 38. Kf3 g5 39. Ke2 Kg6 40. Kd3 Kh5 {White resigns} d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 c5 10. Nxd4 cxd4 11. Bxf6 gxf6 12. Ne4 Bd7 13. Qf3 f5 14. Qh5 Qb6 15. Ng5 Bxg5 16. Qxg5 Qd6 17. Qf6 Rf8 18. Rae1 Qe7 19. Qxf5 O-O-O 20. Qa5 Kb8 21. Qe5+ Ka8 22. Qxd4 Bc6 23. Qf2 Qg5 24. Re3 Rd5 25. Rg3 Qe5 26. Re1 Qd6 27. Rf3 f5 28. Rfe3 e5 29. Bxf5 Bd7 30. Rf3 Bxf5 31. Rxf5 Rxf5 32. Qxf5 {Black forfeits on time} d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1 c5 10. Nxd4 cxd4 11. Bxf6 gxf6 12. Ne4 f5 13. Bb5+ Bd7 14. Qxd4 Rg8 15. Bxd7+ Qxd7 16. Nf6+ Bxf6 17. Qxf6 Qe7 18. Qd4 Rd8 19. Qa4+ Kf8 20. Qxa7 Qg5 21. Qc5+ Ke8 22. Qb5+ Rd7 23. Rg1 Qd2 24. Rad1 Rxg2 25. Rxd2 Rxd2 26. Rg8+ Ke7 27. Qb4+ Kf6 28. Qc3+ Ke7 29. Rg1 f4 30. Qc5+ R7d6 31. Qg5+ Kd7 32. Qxf4 Rxc2 33. Qxf7+ Kc6 34. Qf3+ Rd5 35. Rd1 Rc5 36. Rxd5 exd5 37. Qf6+ Kb5 38. Qf1+ Kc6 39. Qf7 Rc Kg2 Rc Kh3 Rxb2 42. Qxh7 Rxa2 43. Qg6+ Kb5 44. Qd3+ Kc5 45. Qc3+ Kd6 46. Qb4+ Ke5 47. Qxb7 Ra Kh4 Re3 49. Qe7+ Kd4 50. Qf6+ Kd3 51. h3 d4 52. Qf5+ Re Kg3 Ke3 54. Qf1 d3 55. Qe1+ Kd4 56. Qa1+ Kc4 57. Kf3 Rd4 58. Qd1 d2 59. Ke3 Rd Ke4 Kc3 61. Qa1+ Kc2 62. Qa4+ Kc1 63. Qc4+ Kd1 64. Qxd3 {Black resigns} 1-0 The remaining games were added as UON was ready to be finalized Zilbermints - Bibek8650 chess.com Thematic Game Correspondence, d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3 ef3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9. Kh1 Ng4 10 Bc1 O-O 11 Nxd4 Qd6 12 Qxg4 e5 13 Nf5 Qc6 14 Qxg7# UON 28 May - Aug Zilbermints Gambit Addendum 71

40 ZILBERMINTS GAMBIT DELAYED Zilbermints - JasonMa (1809 ICC) Internet Chess Club 3 0 r blitz 9 April d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc a6 9 a3! Nxd4 10 Kh1 Nxf3 11 Qxf3 Qd6 12 Ne4 13 Qf7+ Kd8 14 Bxe4 Bxg5 15 Rad1 Bd7 16 Rxd6 cxd6 17 Qxg7 Re8 18 Qxg5+ Kc7 19 Bxh7 Rh8 20 Be4 Rag8 21 Qe3 d5 22 Bf3 Bb5 23 Re1 Bd7 24 h3 Rg3 25 Qf4+ Kc6 26 Qxg3 Be8 27 Rxe6+ Kb5 28 Bxd5 29 Bd7 29 Qb3+ Ka5 30 Qb4 mate. S. Lange - U. Suemann, correspondence 2006: 1 d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Qe1 Nxd4 10 Rad1!? New move! Previously, 10 Qh4 was always played here Nxf3+ 11 Rxf3 Qe8? 12 Bxf6 Bxf6 13 Rxf6! gf6 14 Bxh7+! Kh8 15 Qh4 Rg8 16 Rd8!! Rxg2+ 17 Kxg2 Qxd8 and Black resigned without waiting for 18 Bg6+ Kg8 19 Qh7+ Kf8 20 Qxf7 mate. A beautiful game, full of tactics! T. Wurm - P. Hendershot, corr. 2005: 1 d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Qe1 Nxd4 10 Rad1!? Nxf3 11 Rxf3 Qd4+! The improvement! 12 Qe3?? The stupidest possible move. Why trade Queens when you are 2 pawns down? 12...Qxe3 13 Bxe3 e5 and 0-1/36 moves. W. Parwicz - P. Hendershot, correspondence 2005: 1 d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Qe1 Nxd4 10 Qh4 h6?? 11 Bxh6! Re8 12 Bg5 Nf5 13 Bxf5 exf5 14 Bxe7 Nf6 15 Bxd8 Rxd8, 1-0/30 moves. C. Hunt - T. Johansen, corr d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Qe1 Nxd4 10 Qh4 Nf5 11 Bxf5 exf5 12 Rad1 Qe8 13 Nd4? Here 13 Rfe1 is better. h6 14 Bxh6?? Ne4! 15 Qh5 gxh UON 28 May - Aug Zilbermints Gambit Addendum 72

41 ZILBERMINTS GAMBIT ACCEPTED Blackeye - Zilbermints ICC, 3 0 rated blitz 26 December d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 c6 10 Ne5 h6 11 Be3 Bf5 12 Bf2 Qc7 13 Qe1 Bd6 14 Nc4 Bxh2 15 Bxf Bd3 b5 17 Nd2 Bd6 Position is equal here. Black has 3 pawns for the piece. 18 Nce4 Nxe4 19 Qxe4 f5 20 Qh4 Be7 21 Qh5 Bg5 22 Nf3 Bf6 23 Rae1 Bd7 24 Bh4?? This just loses a piece. Retreating the Queen was better Be8! 25 Bg3 Qxg3 26 Qh2 Qxh2 27 Kh2 Bf7 28 Ne5 Bxe5+ 29 Rxe5 Rae8 30 Rfe1 a6 0-1/53 moves Peter Schuster (2488) - Thibault de Vassal (2425) FICGS Chess Class Senior Master d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 c6 10 Nxd4 Qxd4 11 Qe1 Qc5 12 Bf a3 Nd5 14 Nd5 cxd5 15 b4 Qc6 16 c4 dxc4 17 Rc1 e5 18 Bc4 Be6 19 Be6 Qxe6 20 Bxe5 f6 21 Bf4 Qe1 22 Rfe1 Rf7 23 Rcd1 a5 24 Bd6 25 Rd6 axb4 26 ab4 Re7 27 Red1 b5 28 h4 Re4 29 R1d4 Rd4 30 Rd4 Ra4 31 h5 Kf7 32 Kg1 Kf7 33 Rd7 e6 34 Rxh7 gxh5 35 Rxh5 Rxb4 36 Kf2 f5 37 Rh8 Rb2+ 38 Kf3 b4 39 Rb8 Kd5 40 Rb5+ Kc4 41 Rxf5, DRAWN. 1 d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 c6 10 Nxd4 Qxd4 11 Qe1 h6 12 Bf4 Bd7 13 Be3 Qb4 14 Qg3 g6? 15 Bxg6?! Here 15 Qe5! wins. Rg8 16 Bxf7+ Kxf7 17 Qc7 Qd6?? 18 Rxf6!! Kxf6 19 Ne4+ 1-0, Zilbermints - chapablanca2000, 3 0 rated Internet Chess Club blitz, 12/15/2009. Ronald Fischer - Gerhart Mertes, correspondence 2001: 1 d4 d5 2 e4 dxe4 3 Nc3 Nf6 4 f3 exf3 5 Nxf3 e6 6 Bg5 Be7 7 Bd3 Nc Nxd4 9 Kh1 h6 10 Bf4 Nxf3 11 Qxf3 c6 12 Rad1 Qb6 13 Qg3 Nh5 14 Qg4 g6?? 15 Bxg6! Nf6 16 Bxf7+! Kxf7 17 Be5 Rg8 18 Qh5+ Rg6 19 Ne4 Kg7 20 Nf6 Bf6 21 Rf6 Rf6 22 Qh4, 1-0. A fine, brilliant combination! UON 28 May - Aug Zilbermints Gambit Addendum 73