B90 Najdorf Sicilian 6 Nb3

IM Matyas Marek 2372 (CZE)


vs IM Harshit Raja 2494 (IND)

U.S. Masters 2021 round 06
B90 Sicilian, Najdorf

  1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 g6 7. Be2 Bg7 8. g4 h5 9. g5 Nfd7 10. Be3 Nc6 11. Qd2 O-O 12. O-O-O b5 13. f4 Bb7 14. e5 Re8 15. Bf3 Rc8 16. Rhe1 Na5 17. Bxb7 Nxb7 18. Qd5 b4 19. e6 fxe6 20. Qxe6+ Kh8 21. Nd5 Nf8 22. Qf7 Qd7 23. Nb6 Qc6 24. Nxc8 Rxc8 25. Re2 e6 26. Nd4 Qd5 27. f5 gxf5 28. Qxh5+ Kg8 29. Qf3 Qxa2 30. Qxb7 Rc4 31. Rd3 Qa1+ 32. Kd2 Qxb2 33. Qxa6 d5 34. Rb3 Rxc2+ 35. Ke1 Rxe2+ 36. Qxe2 Qa1+ 37. Qd1 Qa2 38. Qc2 Qa1+ 39. Rb1 Qa5 40. Qd2 Ng6 41. Qxb4 Qa2 42. Qb2 Qa6 43. Qe2 Qd6 44. Nf3 Qc7 45. Rc1 Qb8 46. h4 Qg3+ 47. Bf2 Qd6 48. Rc8+ Kh7 49. h5 Qb4+ 50. Kf1 Nf4 51. g6+ Kh6 52. Be3 Kxh5 53. Qh2+ Kg4 54. Qxf4+ Qxf4 55. Bxf4 Kxf4 56. Rg8 Bc3 57. Ke2 d4 58. Rd8 1-0

IM Marek finished with five wins, three losses, and a draw, for a performance rating of 2372. His FIDE rating is 2372. His opponent, IM Harshit Raja, also finished with 5 1/2 points, for a performance rating of 2393, 101 points lower than his FIDE rating.

  1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 g6 (6…e6 has been the most often played move and in 147 games against an average opponent rated 2422 has scored 57%. Stockfish 14.1 @depth 69 and SF 14 @depth 50 play 6…e6, but Komodo @depth 33 plays the move played in the game) 7. Be2 (Although SF 12 @depth 33 plays this move the same program left running a little longer, to depth 42, decides upon 7 f3, the same move SF 14.1 @depth 40 plays) 7…Bg7 8. g4 (SF 200221 @depth 42 plays 8 Be3. In 34 games it has scored only 47%) In 39 games 8 g4 has scored only 45%. 8…h5 (This is the choice of Stockfish and Houdini, and this is the first time this move has been played, according to the ChessBaseDataBase, so it is a Theoretical Novelty, or is it? The following game was found at 365Chess.com)

Maxence Godard (2377) vs Nicolas Basilevitch
Event: Naujac op
Site: Naujac Date: ??/??/2001
Round: 4
ECO: B70 Sicilian, dragon variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Nb3 a6 8.g4 h5 9.gxh5 Nxh5 10.Bg5 Nc6 11.Qd2 Be6 12.O-O-O Bxb3 13.cxb3 Qa5 14.Kb1 Nf6 15.a3 Qb6 16.Bxf6 Bxf6 17.Nd5 Qd4 18.Qc2 Qa7 19.Nxf6+ exf6 20.Rxd6 Ke7 21.Rd2 Rac8 22.Qd1 Rhd8 23.Bc4 Ne5 24.Bd5 Qb6 25.f4 Nc6 26.h4 Qe3 27.h5 gxh5 28.Rxh5 Qxf4 29.Rf5 Qh6 30.Rdf2 Rd6 31.Rf1 Rf8 32.Qc2 Rfd8 33.Qc5 Rd7 34.Bxc6 bxc6 35.Rxf6 1-0

Frank Sawatzki, (2393) vs Rolf Luckow (2220)
Event: 2nd Bundesliga Nord 19-20
Site: Germany GER Date: 11/23/2019
Round: 3.5
ECO: B90 Sicilian, Najdorf
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bd3 e6 7.a4 Nc6 8.Nb3 d5 9.O-O Bb4 10.exd5 Nxd5 11.Nxd5 Qxd5 12.Qg4 g6 13.Be4 f5 14.Bxd5 fxg4 15.Be4 Bd7 16.Be3 O-O-O 17.Rfd1 Be7 18.Nc5 e5 19.Nxd7 Rxd7 20.Rxd7 Kxd7 21.c3 Kc8 22.Rd1 Rd8 23.Rxd8+ Nxd8 24.Bd5 g5 25.Be4 h6 26.Bf5+ Kc7 27.Bxg4 a5 28.Kf1 b6 29.Ke2 Nb7 30.Bf5 Nd6 31.Bc2 Nc4 32.Bc1 Bc5 33.b3 Nd6 34.h4 gxh4 35.Bxh6 Kd7 36.Bg5 b5 37.Bxh4 Ke6 38.g4 bxa4 39.bxa4 Kd7 40.f3 1-0

Aleksander Kaczmarek (2389) vs Ignacy Leskiewicz (2146)
Event: 3rd Irena Warakomska Mem
Site: Suwalki POL Date: 08/05/2019
Round: 1.31
ECO: B90 Sicilian, Najdorf
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Nb3 g6 7.Be2 Bg7 8.g4 Nc6 9.g5 Nh5 10.Be3 a5 11.Nd5 O-O 12.c3 Bh3 13.Nd2 e6 14.Nb6 Nf4 15.Bxf4 Qxb6 16.Nc4 Qd8 17.Nxd6 Qc7 18.Qd3 e5 19.Nb5 Qc8 20.Bd2 Rd8 21.Qf3 a4 22.Be3 a3 23.bxa3 Nd4 24.cxd4 exd4 25.Rc1 Qe6 26.Nc7 Qxa2 27.Nxa8 dxe3 28.fxe3 Qxa3 29.Kf2 Bd7 30.Nb6 Bc6 31.Nd5 Qd6 32.Rcd1 1-0

During research for this post this was found:

  1. Be3 0-1, Kamsky (2725) vs. Topalov (2796)
  2. Kh1 0-1, Milligan Scott (1835) vs. Bellin (2240) (https://www.365chess.com/opening.php?m=19&n=282498&ms=e4.c5.Nf3.e6.d4.cxd4.Nxd4.a6.Bd3.Nf6.O-O.d6.a4.Be7.Nc3.Nc6.Nb3.b6&ns=

I thought nothing of “Scott Milligan” but did wonder if the “Bellin” was GM Juan Manuel Bellin, the husband of Pia Cramling, until finding his name is spelled, “Bellon.” Clicking showed it was Jana Bellin and her opponent was none other than Helen Milligan, who currently resides in New Zealand.

Gata Kamsky (2725) vs Veselin Topalov (2796)
Event: 18th Amber Blindfold
Site: Nice FRA Date: 03/25/2009
Round: 10
ECO: B43 Sicilian, Kan, 5.Nc3
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 d6 6.Bd3 Nf6 7.O-O Be7 8.a4 Nc6 9.Nb3 b6 10.Be3 O-O 11.f3 Bb7 12.Rf2 Qc7 13.Bf1 Rac8 14.Qe1 Ne5 15.Rd2 Nfd7 16.Rad1 Rfe8 17.Kh1 Bf8 18.Qg3 Nc5 19.Nd4 Qb8 20.Rf2 Ncd7 21.Bc1 Nf6 22.Re2 Ng6 23.Ree1 Be7 24.Qf2 Bd8 25.Nde2 Bc7 26.Qg1 d5 27.exd5 Nxd5 28.Nxd5 Bxd5 29.Nc3 Bb7 30.Be3 Ne5 31.Be2 Bc6 32.Bxa6 Nxf3 33.gxf3 Bxf3+ 0-1

Helen Milligan Scott (1835)

vs Jana Bellin (2240)

WGM Dr. Jana Bellin

Event: Luzern ol (Women)
Site: Luzern Date: ??/??/1982
Round: 10
ECO: B42 Sicilian, Kan, 5.Bd3
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.a4 Be7 8.Nc3 Nc6 9.Nb3 b6 10.Kh1
(Stockfish 040621 @depth 35 plays 10 f4. Komodo 9.02 @depth 24 would play the TN 10 Qf3. Deep Rybka, in the shallow water at only depth 17, advocates 10 Be3) 10…Bb7 11.f4 O-O 12.f5 Ne5 13.Nd4 Nxd3 14.cxd3 e5 15.Nf3 d5 16.Nxe5 dxe4 17.dxe4 Qc7 18.Nf3 Nxe4 19.Be3 Rad8 20.Qc1 Nc5 21.Nd4 Bf6 22.Qd1 Qe5 23.Re1 Rxd4 24.Bxd4 Qxd4 25.Qxd4 Bxd4 26.Rad1 Bxc3 27.bxc3 Nxa4 28.c4 Bc8 29.g4 h5 30.h3 hxg4 31.hxg4 Bb7+ 32.Kh2 Rc8 33.Rd4 Nc5 34.Rd6 Bc6 35.Rb1 Nd7 36.Rbd1 f6 37.Rb1 a5 38.Kh3 Ba4 39.Rc1 Rc5 40.Kg3 Bc6 0-1

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.