Khachiyan, Melikset vs Onischuk, Alexander
2013 U.S. and Womens' Championship · Round 2.6 · 2013.05.04 · 1/2-1/2 · B19 Caro-Kann Defense: Classical Variation, Lobron System
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PGN
[Event "2013 U.S. and Womens' Championship"]
[Site "Saint Louis, Missouri, USA"]
[Date "2013.05.04"]
[Round "2.6"]
[White "Khachiyan, Melikset"]
[Black "Onischuk, Alexander"]
[Result "1/2-1/2"]
[PlyCount "71"]
[WhiteElo "2518"]
[WhiteFideId "13300512"]
[WhiteTitle "GM"]
[BlackElo "2666"]
[BlackFideId "14101025"]
[BlackTitle "GM"]
[ECO "B19k"]
[TimeControl "6000+1225"]
[Source "Codekiddy"]
[SourceQuality "3"]
[ImportDate "2026-01-06"]
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5
Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7 13. Ne4 Nxe4 14. Qxe4
Nf6 15. Qe2 Qd5 16. c4 Qe4 17. Qxe4 Nxe4 18. Be3
{ a standard opening line to this point, where we now have a queenless middlegame that can simplify quickly into an endgame. }
18... Nd6 { a solid choice that scores 50 percent for Black. } ( 18... f5
{ scores the best here, with 56 percent for Black. } ) ( 18... O-O
{ is the most popular, but only scores 47 percent for Black. } ) 19. Ne5 Bf6
20. b3 Nf5 21. Nf3 b5 22. g4 { first move out of the database. } 22... Nxe3 23.
fxe3 bxc4 24. bxc4 c5
{ a typical pseudo-sacrifice that if accepted would give Black a small advantage. }
25. Kc2 ( 25. dxc5 Rc8 26. Rd2 Rxc5 27. Rc2 Ke7
{ and Black has two isolated pawns to target. } ) 25... O-O 26. Kd3 Rac8 27.
Rh2 Rfd8 28. Rc2 Rd6 29. Ke4 Rb6 30. Rd3 Rb4 ( 30... Ra6 { would be safer. } )
31. Rb3 ( 31. Ra3 $5 cxd4 32. exd4 Rbxc4 33. Rxc4 Rxc4 34. Rxa7 ) 31... Ra4 32.
Rb7 Rc6 33. Rb8+ Kh7 34. Rb7 Kg8 35. Rb8+ Kh7 36. Rb7 1/2-1/2