The Main Line

The main line of the Perreux Variation can arise in a number of ways (see below), but generally follows either 5....Ne5 6.Qxd4 Nxc4 7.Qxc4 d5 8.exd5 Qxd5 9.Qe2+ or 5....d5 6.exd5 Na5 7.Qxd4 Nxc4 8.Qxc4 Qxd5 9.Qe2+. Black has two ways of responding to the check:

Position after 9.Qe2+

The Gambit Line
The Main Line
The Lolli Attack
The Queen Check
Early Divergences
Links & Acknowledgments
Games in PGN Format

The great advantage of the Perreux Variation is that White really only needs to learn a few lines since almost all roads can lead to the Main Line eventually (if White chooses). The resulting positions generally favor White slightly and create interesting games with chances for both sides -- though there are some ways for Black to equalize that White needs to know about.

Black can try to avoid the Main Line variations below in a number of ways and there are some alternatives for White as well based on move order.

A) 5....Ne5 6.Qxd4 (Not the best choice from this move order. Better is 6.Bb3! which leads to the Gambit Line) 6....Nxc4
An important sideline here is 6...Qe7!?

1) 7.Nc3?? c5! wins

2) 7.Bb3?! h6 8.Nf3 Nc6 =+

3) 7.Bf4!? Nxc4 8.Qxc4 h6 9.Nf3 Qxe4+ 10.Qxe4+ Nxe4 11.Bxc7 =

4) 7.O-O

4a) 7....Qc5! 8.Qxc5 Bxc5 9.Bb3 d6 10.Nc3 a6 11.Bf4 O-O 12.Bxe5 dxe5 13.Nf3 Re8 14.Rad1 Bg4 15.Rd3 Bxf3 16.gxf3 Rad8 17.Rfd1 Rxd3 18.Rxd3 Kf8 19.Nd5 Nxd5 20.Bxd5 c6 1/2-1/2 Blackburne-Wolf, Ostende 1905

4b) 7....h6 8. Nf3 Nxf3+ 9. gxf3 d6 10. Nc3 c6 11.Bf4 Nh5 12.Bg3 Nxg3 13.fxg3 h5 14.Rfe1 h4 15.g4 Qe5 16.Qf2 Qa5 17.Kh1 Bd7 18.a3 Be7 19.Qd2 Qc5 20.Bf1 O-O-O 21.Qe3 Qxe3 22.Rxe3 Be6 23.Bd3 Bf6 24.Nd1 d5 25.e5 Bg5 26.Re2 g6 27.Nf2 c5 28.Nh3 Bh6 29.c3 c4 30.Bc2 Kc7 31.Rd1 b5 32.Ng1 a5 33.Ree1 b4 34.axb4 axb4 35.Ne2 bxc3 36.Nxc3 Kc6 37.b3 d4 38.Be4+ Kc5 39.Na4+ Kb4 40.bxc4 Kxa4 41.Ra1+ Kb4 42.Reb1+ Kc5 43.Ra5+ Kxc4 44.Ra4+ Kc5 45.Ra5+ Kc4 46.Ra4+ Kc5 47.Ra5+ Kc4 48.Ra4+ 1/2-1/2 Blackburne-Pillsbury, England 1897.

7.Qxc4 d5 8.exd5 Qxd5

1) 8....Bd6?! 9.Nc3 O-O 10.O-O Bf5 11.Qb3 ± Foltys-Pinzon, Buenos Aires 1939

2) 8....Nxd5 9.O-O Be7 10.Nc3 Bxg5 11.Nxd5 ± Beliavsky and Mikhalchishin

3) 8....h6

3a) 9.Nf3 Nxd5 10.O-O Be7 11.Rd1 c6 12.Nc3 Be6 13.Nxd5 Bxd5 14.Qg4 with attack in Bering-Hjorth, Koge 1997

3b) 9.Ne4 Nxd5 10. O-O Be7 (10...Nb6 11. Qe2 Be7 12. Re1 Bd7 13. c4 O-O 14. c5 Nc8 15. Nbc3 1-0 Pfleger-Zuidema, The Hague 1963) 11. Rd1 c6 12. Qe2 Qc7 13. c4 Nf4 14. Bxf4 Qxf4 15. Nd6+ Kf8 16. Nxc8 Rxc8 17. Nc3 Re8 18. Re1 g6 19. g3 Qf5 20. Qe3 Kg7 21. Ne4 Bb4 22. Re2 Re5 23. Qd4 Rhe8 24. f4 c5 25. Nd6 cxd4 26. Nxf5+ Rxf5 27. Rxe8 Rc5 28. b3 Ra5 29. a4 a6 30. Rb8 Bc3 31. Rd1 g5 32. fxg5 Rxg5 33. Rxb7 Re5 34. Rd3 Kg6 35. Kf2 h5 36. Rd7 Re4 37. Kf3 Re1 38. R7xd4 Bxd4 39. Rxd4 Rb1 40. Rd3 Kf5 41. Re3 Rc1 42. h3 Rf1+ 43. Ke2 Rh1 44. h4 Kg4 45. Kd2 f5 46. c5 f4 47. gxf4 Kxf4 48. c6 Rg1 49. c7 Rg8 50. b4 1-0 Dubois-Daillet, France 1993

9.Qe2+ (9. Qxc7? Qxg2 10. Qxf7+ Kd8 11. Rf1 Bb4+ 12. c3 Re8+ 13. Be3 Rxe3+ 14. fxe3 Qxg5 15. cxb4 Qxe3+ 16. Kd1 Bg4+ 17. Kc2 Rc8+ 18. Nc3 Qe2+ 19. Kb3 Be6+ 20. Ka3 Qa6+ 0-1 Kirby-Gagnon, 1987)

B. 5....d5 6.exd5 Na5 (6....Qe7+! is the Queen Check line and 6....Nxd5? is the Lolli Attack) 7.Qxd4 (7.Qe2+!? Qe7 8.O-O Qxe2 9.Bxe2 Nxd5 10.Bd2 Nc6 11.Re1 Be7 Malyukin-Vul, Moscow 1992, when Beliavsky and Mikhalchishin suggest 12.Bf3!? Ndb4 13.Bxb4 Nxb4 14.Na3 with chances for both sides; 7.Bb5+ c6 8.dxc6 bxc6 9.Be2 Be7 10.c3 Nd5 11.Nf3 dxc3 12.Nxc3 Nxc3 13.Qxd8+ Bxd8 14.bxc3 O-O 15.Be3 Bf6 16.O-O Be6 17.Bd4 Bxd4 18.Nxd4 1/2-1/2 Sokolsky-Taimanov, Leningrad 1949) 7....Nxc4 8.Qxc4 Qxd5 9.Qe2+

C. 5....d5 6.exd5 Ne5?! 7.Qe2! (Of course, White can also choose to transpose to the Main Line with 7.Qxd4 etc., but this has proven stronger in practice) 7....Qe7 (7....Bb4+? 8.c3 +-) 8.O-O

1) 8....Bf5 9.Bf4 Ng6 10. Bb5+ Nd7 11. Qd2 O-O-O 12. Qxd4 h6 13. Bxd7+ Qxd7 14. Qxa7 Qxd5 15. Nc3 Qc4 16. Rad1 Bd6 17. Bxd6 Rxd6 18.Rxd6 cxd6 19. Qa8+ Kc7 20. Qa5+ Kb8 21. Nb5 Qc5 22. b4 Qd5 23. c4 Qc6 24. Nxf7 +- Nf4 25.f3 Re8 1-0 Sarandos--Mathiopoulos, Greece 2001.

2) 8....Bg4 9.f3 Nxc4 10.Qxc4 Bf5 11.Bf4! h6 (11....Qc5 12.Re1+ Kd7 13.Na3! Qxc4 14.Nxc4 Bb4 15.Ne5+ Kc8 16.Nexf7 Rf8 17.c3! dxc3 18.bxc3 Bc5+ 19.Kh1 h6 20.Ne6 Rxf7 21.Nxc5 b6 22.Re5! +- Sokolsky--Konstantinopolsky, Correspondence 1948-1951) 12.Ne4 Bxe4 13.fxe4 Qc5 14.Qd3 Qb6 15.Nd2 O-O-O 16.Be5 Bc5 17.Nb3 Rhe8 18.Bxf6 gxf6 19.Nxc5 Qxc5 20.Rxf6 Qe7 21.Qxd4 Qxe4 22.Qxe4 Rxe4 23.Rd1 Re2 24.Rf2 Re5 25.Rxf7 Rdxd5 26.Rxd5 Rxd5 27.g4 Rg5 28.h3 h5 29.Rf5 Rxf5 30.gxf5 Kd7 31.Kf2 Kd6 32.Kg3 Ke5 33.Kh4 Kxf5 34.Kxh5 a6 35.a4 b5 36.axb5 axb5 37.b4 c6 38.h4 Ke5 39.Kg6 Kd4 40. h5 1-0 Honfi-Erdy, Budapest 1955.

ML1) 9....Be7 The pin on the e-file is trouble for Black in this line, but he likely maintains equality with best play. 10.O-O

ML1a) 10....h6

ML1a1) 11.Nc3 Qd8 12.Rd1 Bd7 13.Nf3 O-O 14.Ne5 ± Dubois-Donchev, Cappelle la Grande 1997.

ML1a2) 11.Re1

ML1b1) 11....Qd6? 12.Bf4! Qd8 13.Nc3 Bg4 14.Nf3 Kf8 15.Rad1 Qe8 16.Bxc7 Rc8 17.Qe5 Nd7 18.Qf4 Be6 19.Rxe6 1-0 Khanov-Ludolph, Kiev 1965.

ML1b2) 11....Qd8 12.Nf3 Kf8 13.Rd1 Bd6 14.Bf4 += Ne8 15.Nc3 Bd7 16.Qd2 Bc6 17.Nd4 Qf6 18.Bxd6+ Qxd6 19.Qe3 Qg6 20.Nxc6 Qxc6 21.Re1 Kg8 22.Rad1 Kh7 23.Qe4+ Qxe4 24.Rxe4 Rf8 25.Re7 a6 26.g3 Rc8 27.Rdd7 Kg6 28.a4 b5 29.a5 c5 30.Ne4 Nf6 31.Rd6 Ra8 32.Nxf6 gxf6 33.Rc7 c4 34.Rcc6 Rfd8 35.Rxf6+ Kg7 36.Rfd6 1-0 Holler-Ehrler, Buehl 1992.

ML1b) 10....Bg4!? (a suggestion by the American Chess Bulletin writer and analyst C. S. Howell, from 1924!) 11.f3 Bh5 (The Bishop defends the f7 square and gains time for Black to castle long in some lines).

ML1b1) 12.Re1?! Qd4+ 13.Be3 (13.Kh1?! O-O-O! 14.Qxe7 Rhe8) 13....Qxb2 14.Bc5 O-O-O! 15.Bxe7 Rfe8 16.Nd2 Nd5 and Black is doing well.

ML1b2) 12.Nc3! Qc6 13.Bf4 ± (13.Re1 O-O-O! =) 13....h6 14.Rfe1 O-O 15.Qxe7 hxg5 16.Bxg5 Rae8 17.Qb4 b6 18.Bxf6 Qxf6 19.Nd5 Qg6 20.Rxe8 Rxe8 21.Ne7+ Rxe7 22.Qxe7 Bxc2 23.Re1 1-0 Vasta-Covas, Mar Del Plata 2001.

ML1c) 10.....Bd7! (The surprising recommendation of Fritz, this move clearly equalizes in a position where Black has generally been seen as much worse.) 11.Nc3 (11.Re1?! O-O! =; 11.c4!? Qc5 12.b4!? Qd4 [12...Qxb4? 13.Ba3 +-; 12....Bg4!? 13.Qxg4 Qe5 14.Qf3! is unclear] 13.Bb2 Qf4 14.Nf3 Be6 15.Nd4 Ng4 16.g3 Qh6 17.f3 Qe3+ [17...Bxc4?! 18.Qxe7+ Kxe7 19.Nf5+ Kf8 20.Nxh6 Nxh6 21.Rc1 Bd5 22.Rxc7 Bxf3 23.Nc3 +=] 18.Qxe3 Nxe3 19.Re1 Nxc4 20.Nxe6 fxe6 21.Bxg7 Rg8 22.Bc3 Kf7 23.Nd2 Nxd2 24.Bxd2 Rad8 25.Rad1 Rd5 26.Bc3 Rgd8 27.Rc1 =) 11...Qc5 (11...Qf5 12.Bd2 is the same) 12.Be3 Qf5 13.Bd2 Bc6 14.Rfe1 Ng8 15.Qc4 h6 16.Nge4 0–0–0 17.Be3 a6! (17...Qg6?! 18.Bxa7! b6? 19.a4 Kb7 20.a5 ±; 17...Kb8 18.Rad1 +=) 18.Rad1 (or 18.f3 Qg6 19.b4) 18...Rxd1 19.Rxd1 Nf6 20.Ng3 Qg6 21.b4 Ng4 22.b5 Nxe3 23.fxe3 axb5 24.Nxb5 Kb8 25.Nd4 Bd7 26.Rb1 and White still has some initiative and the opposite-side castling means both sides will strive to attack the opposing King, so the game is still interesting.

ML2) 9....Be6 (This is a very sharp position where both players must be precise to avoid incurring weaknesses or losing time) 10.O-O (10.Nxe6?! Qxe6 11.Qxe6+ fxe6 12.O-O Bc5 13.Nc3 O-O-O 14.Bf4 a6 15.Rad1 Bd4 16.Bd2 Rd7 17.Be3 Bxc3 18.Rxd7 Kxd7 19.bxc3 e5 =+ Shipley-Lasker, Philadelphia 1892) 10....O-O-O (10....Qc4!? 11.Qxc4 Bxc4 12.Re1+ Kd7 13.b3 Bd5 14.Rd1! +=; 10....Bb4?! 11.a3 Ba5? 12.Nxe6 fxe6 [11....Qxe6 12.Qb5+] 12.b4 Bb6 13.c4! followed by c5 +-; 10....h6?! 11.Nc3 Qc4 12.Nxe6 Qxe6 13.Qb5+ Qc6 14.Re1+ Be7 15.Bf4 Rc8 16.Qb4 Ng8 17.Rxe7+ Nxe7 18.Re1 O-O 19.Rxe7 Rfe8 20.h3 Rxe7 21.Qxe7 Re8 22.Nd5 Qa4 23.b3 Qe4 24.Qd7 c6 25.Ne3 Re7 26.Qc8+ Re8 27.Qd7 Re7 28.Qg4 h5 29.Qg3 Re6 30.Bb8 a6 31.Qc7 Qb4 32.Kh2 Qe1 33.Qd8+ Kh7 34.Bg3 Qb4 35.Nf5 Qe4 36.Qg5 Rg6 37.Qxh5+ Kg8 38.Ne3 b5 39.Qd1 Kh7 40.Qd7 Qe6 41.Qd3 Kg8 42.Ng4 Qd5 43.Qxd5 cxd5 44.c3 b4 45.cxb4 Re6 46.Ne5 f6 47.Nd3 Re2 48.a4 Rd2 49.Nc5 Rb2 50.b5 axb5 51.axb5 1-0 Nagy-Bors, Hungary 1993) 11.Nc3 (11.Nxe6?! Qxe6 12.Qxe6+ fxe6 13.Nc3 Bb4! 14.Bg5 Bxc3! 15.bxc3 Rd5! 16.Be3 Rhd8 17.c4 Ra5 18.a4 Rd6 19.Rfb1 Ng4 20.Rb5 Rxa4 21.Rab1 Nxe3 22.fxe3 Rb6 23.Rf1 Rxc4 24.Rg5 g6 25.Rf8+ Kd7 26.Rf7+ Kd6 27.Rxh7 Rb1+ 28.Kf2 Rxc2+ 29.Kg3 b5 30.Rxg6 Rb3 31.Kf4 Rc4+ 32.Kg5 Rxe3 33.Rgg7 Re5+ 34.Kh6 Rh4+ 35.Kg6 Rxh7 36.Rxh7 b4 37.g4 b3 38.Rh3 Rb5 39.Rd3+ Ke7 40.Rd1 b2 41.Rb1 a5 42.h4 a4 43.h5 a3 44.h6 a2 0-1 Pollock-Schiffers, Hastings 1895)

ML2a) 11....Qc6?! (The Queen is less well placed here than at f5) 12.Nxe6 fxe6 13.Bg5! += Bc5 14.Rad1 Rxd1 15.Rxd1 Rf8 16.Bxf6 gxf6 17.Ne4 Be7 18.Re1 Rd8 19.h3 e5 20.Qh5 Qe6 21.a3 f5 22.Ng3 Rf8 23.Qxh7 Bd6 24.Qh5 e4 25.Qe2 Qg6 26.Nf1 Rh8 27.Kh1 Qg5 28.Qe3 Qg4 29.Nh2 Qg7 30.c3 Qe5 31.Nf1 Kb8 32.Qd4 Qe8 33.f3 Qh5 34.fxe4 f4 35.Nh2 Be5 36.Qd1 Qe8 37.Qf3 Qb5 38.Ng4 1-0 Ridameya-Pinilla, Spain 1998.

ML2b) 11....Qc4 (The chief problem with this move is that it limits Black's options as compared to the main line below with 11....Qf5: now Queens must be exchanged) 12.Nxe6 Qxe2?! (better 12....Qxe6 13.Qxe6+ transposing to ML2c1 below) 13.Nxe2 Re8 (If 13....fxe6 14.Bg5! ± and White has an extra tempo on line ML2c1 below. This is better than 14.Nf4?! Re8 15.Re1 e5 16.Nd3 e4 17.Nf4 Bd6 18.Ne2 Rhf8 19.h3 Bc5 20.Nc3 Nd5 21.Nxd5 Bxf2+ 22.Kf1 Bc5+ 23.Ke2 Rf2+ 24.Kd1 Rd8 25.c4 c6 26.Re2 Rf1+ 27.Re1 Rxe1+ 28.Kxe1 cxd5 29.cxd5 Rxd5 30.Ke2 Kd7 31.Be3 Ke6 32.Rc1 b6 33.Rc4 Ke5 34.Bd2 Bd4 35.Rc7 Kd6 36.Bf4+ 1/2-1/2 Nagy-Kovacs, Balatonbereny 1994.) 14.N6d4 c5 15.Bg5 cxd4 16.Bxf6 Rxe2 17.Bxd4 b6 18.Rfe1 Rxc2 19.Re8+ Kd7 20.Ra8 Kc7 21.Rxa7+ Kb8 22.Rxf7 ± Bc5 23.Bxc5 bxc5 24.Rxg7 Rxb2 25.h3 Rc8 26.Rxh7 c4 27.Re7 c3 28.Rc1 c2 29.Kh2 Rd8 30.Re2 Rc8 31.f4 Rxa2 32.f5 1-0 Reti-Opocensky, Baden Baden 1914.

ML2c) 11....Qf5 12.Nxe6

ML2c1) 12....Qxe6!? 13.Qxe6+ fxe6 14.Bg5 (A mistake is 14.Re1?! Bb4! 15.Bf4 Bxc3! 16.bxc3 Rhe8 17.Rad1 Rxd1 18.Rxd1 e5 =+ when Black had the better pawn formation in Torre-Marshall, Dimock Theme Tournament 1924 , but playable is 14.Be3 h6 15.Nb5 a6 16.Nd4 Re8 17.Nb3 Bd6 18.Rfe1 Rhf8 19.h3 Nd5 20.c4 Nxe3 21.Rxe3 b6 22.Rae1 Rf4 23.Rc1 Bc5?! 24.Nxc5 bxc5 25.Re5 Rd8 26.Rc2 Rd1+ 27.Kh2 Kd7 28.Rxc5 += Pfleger-Rinder, Bamberg 1962) 14....Bb4! (Threatening to double White's pawns. Black loses time with 14....h6?! 15.Bxf6 gxf6 16.Rfe1 e5 17.Re3 Rd2 18.Rc1 Bb4 19.Ne4 Rhd8 20.g4 Rg8 21.Rg3 ± Rd4 22.Nxf6 Rg6 23.c3 Rc4 24.b3 Ba3 25.Re1 Rf4 26.Nd5 Rfxg4 27.Rxe5 Bd6 28.Ne7+ Bxe7 29.Rxe7 Rxg3+ 30.hxg3 Ra6 31.Re2 Rc6 32.c4 a5 33.Rd2 a4 34.Kg2 Rc5 35.f4 b5 36.Rd5 axb3 37.axb3 Rxd5 38.cxd5 Kd7 39.Kf3 h5 40.Ke4 Kd6 41.Kd4 c5+ 42.dxc6 Kxc6 43.f5 Kd6 44.b4 Ke7 45.Ke5 1-0 Marshall-Bigelow, Dimock Theme Tournament 1924 ) 15.Ne2!? (White cannot allow his pawns to be damaged by Bxc3; meanwhile, he probably should wait a moment before capturing himself at f6 so that the Bishop can temporarily hold the d2 square and prevent Rd2 -- there is no hurry, after all, to take the Knight since it is pinned. Roughly equal is 15.Bxf6!? gxf6 16.Ne4 f5 17.Ng5 Rd2 18.a3 Bd6 19.Rac1 Re8 20.Nf3 Re2 21.Rfe1 Bf4 22.Rxe2 Bxc1 23.c3 e5 24.g3 e4 25.Nd4 Re5 26.Kf1 c5 27.Nb5 a6 28.Rc2! Bh6 29.Nd6+ Kc7 30.Nf7 Re6 31.Nxh6 Rxh6 32.h4? (better 32.Rd2! = Rxh2?! 33.Rd5!) 32....Rd6 33.Ke2 Rd3 34.c4 Rb3 35.Rd2 Kc6 36.Kd1 b5 37.cxb5+ axb5 38.Kc2 c4 39.Rd8 Rf3 40.Rd2 h5 41.Kc1 Kc5 42.Kc2 b4 43.axb4+ Kxb4 44.Re2 Rd3 45.Rd2 Rxd2+ 46.Kxd2 Kb3 47.Kc1 e3 48.fxe3 c3 49.bxc3 Kxc3 50.e4 fxe4 51.Kd1 Kd3 52.Ke1 e3 53.g4 hxg4 0-1 Forsberg-Marshall, Dimock Theme Tournament 1924 ) 15....Rd5?! (A natural move, but best here is 15....Bd2! = to try to gain the d2 square, and if then 16.Bxf6 gxf6 the Bishop on the seventh rank cramps White's game and has the option of switching to the useful c1-h6 diagonal) 16.Bxf6 gxf6 17.Rfd1 Rhd8 18.Rxd5 Rxd5 19.Kf1 Rd2 20.Rc1 e5 21.g4 c5 22.Ng3 Rd6 23.Ne4 Rc6 24.c4 Ba5 25.Rd1 ± Bc7 26. Rd5 b6 27. Rd3 Bd8 28. Nd6+ Kb8 29. Nb5 Rc8 30. Rd7 a6 31. Nd6 Rc6 32. Rxd8+ Kc7 33. Nf7 1-0 Bernstein-Alvarez, Montevideo 1954.

ML2c2) 12....fxe6! 13.Be3 Bd6!? (Black tries to find some play in the position. There is not much for either player following 13....a6 14.Rad1 Bd6 15.f3 [15.Rfe1!?] 15....Qe5 [15....Be5!?] 16.g3 [16.f4!? Qf5 17.Qc4!? and now not 17....Qxc2?! 18.Rd3! += threatening to trap the Queen but 17....Rhe8 18.Rd3 e5! 19.Nd5 =] 16....Bc5 17.Bxc5 Qxc5+ 18.Qf2 Qxf2+ [18....Qc6 19.Qa7!? Nd7 20.Qe3 =] 19.Kxf2 Rd6 20.Rfe1 Rb6 21.Na4 [21.b3 Rc6 22.Rd3 Nd5! 23.Nxd5 Rxc2+ 24.Re2 Rxe2+ 25.Kxe2 exd5 26.Rxd5 =] 21....Rc6 22.Nc3 Rb6 1/2-1/2 Blackburne-Schlechter, Ostende 1905) 14.Nb5 (14.Bxa7 Qe5! 15.Qxe5 Bxe5 16.Be3 Bxc3 17.bxc3 =) 14....a6 15.Nxd6+ (15.Nd4? Bxh2+! 16.Kxh2 Qe5+ 17.f4 [17.Kh1 Rxd4 =+] 17....Qxe3! 18.Qxe3 Ng4+ =+) 15....Rxd6 =

ML2c2a)16.Rad1 Rhd8 17.Rxd6 Rxd6 18.Rd1?! (White should not even think about exchanging the last Rook, when Black's Queen and Knight will cooperate well. Instead, he would prefer to exchange Queens, when the Rook and Bishop combination will be better than Rook and Knight. Better is 18.c4 with relative equality, but Black seems to do fine after, for example, 18....Rd3! 19.f3 e5! 20.b4 e4 21.b5 axb5 22.cxb5 exf3 [not 22....Qxb5? 23.fxe4 += Nxe4?? 24.Qg4+ +-] 23.Rxf3 Qd5! [23....Qxb5? 24.Bd4!] 24.Rf1 =) 18....Nd5! (The Knight is strongly posted here and gives Black a slight plus. Too drawish is 18....Rxd1+ 19.Qxd1 Nd5 = 20.Qd2 Nxe3 21.Qxe3 Qxc2 22.Qxe6+ Kb8 23.h3 Qc1+ 24.Kh2 Qf4+ 25.Kg1 Qc1+ 1/2-1/2 Marshall-Santasiere, Dimock Theme Tournament 1924 ) 19.h3 Qe5 20.c3 Qe4 21.Re1 Nxe3 22.fxe3 Rd3 =+ 23.Qf2 g6 24.Re2 Rd1+ 25.Kh2 b5 26.a3 h5 27.Qf4 Qb1 28.Qf8+ Kb7 29.Qf3+ Kb6 30.Qf6 Qe4 31.Qf4 Qd5 32.h4 e5 33.Qf8 Qc4 34.Qf6+ Rd6 35.Qf2 Qe4 36.Re1 c6 37.Kg1 Rd3 38.Kh2 a5 39.Kg1 a4 40.Kh2 Rd6 41.Kg1 Kc5 42.c4 bxc4 43.Qf7 Kb6 44.Qf8 Kc7 45.Qe7+ Rd7 46.Qc5 Qxh4 47.Qxe5+ Kb7 48.Rf1 Qe7 49.Qxe7 Rxe7 50.Kf2 Rf7+ 51.Ke2 Rxf1 52.Kxf1 Kc7 53.Ke2 Kd6 54.Kd2 Ke5 55.Kc3 g5 56.Kxc4 h4 57.Kd3 g4 0-1 Santasiere-Marshall, Dimock Theme Tournament 1924 .

ML2c2b) 16.c4! Rhd8 17.c5! Rd3 18.c6! and White has struck the first blow in the mutual attacks on the opposite-side castled Kings.

Lolli Attack>>>

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Last modified: September 10, 2013
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