[Event "12th Margaryan Memorial"] [Site "?"] [Date "2022.01.10"] [Round "?"] [White "Petrov, Nikita"] [Black "Hayrapetyan, Hovik"] [Result "1-0"] [ECO "B94"] [WhiteElo "2559"] [BlackElo "2499"] [Annotator "peter"] [PlyCount "39"] [EventDate "1961.??.??"] [EventType "tourn"] [EventRounds "11"] [SourceVersionDate "2020.04.01"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 e6 (7... Qb6) (7... Qa5) 8. Qe2 (8. O-O) 8... Qa5 $16 {The most commonly played move in this position but strongly disapproved of by the engines.} (8... h6) (8... b5) 9. f4 Be7 10. O-O-O Nb6 {An odd looking move. I can only assume that Black had intended to follow up with d5 but later realised that it left him lost.} 11. Bb3 h6 (11... d5 12. f5 $18 e5 13. exd5 exd4 14. d6 Be6 (14... O-O 15. dxe7 Re8 16. Bxf6 $18) 15. Bxe6 $18) 12. Bh4 Nbd7 {the knight goes back but the loss of 2 tempi in these sorts of positions is often fatal and this no exception} 13. Kb1 (13. Bxe6 {was very strong e.g.} fxe6 14. Nxe6 Kf7 15. Qc4 Kg6 16. Nd5 Bd8 (16... Nxd5 17. Rxd5) 17. Nxd8 Rxd8 18. f5+ Kh7 19. Bxf6 Nxf6 20. Nxf6+ gxf6 21. Qf7+ Kh8 22. Qxf6+ Kh7 23. Qg6+ Kh8 24. Rd3 $18) 13... Nc5 14. e5 dxe5 15. fxe5 Nd5 16. Nxd5 Bxh4 17. Qh5 Bd8 (17... exd5 {was essential but White retains a grip on the position e.g.} 18. Bxd5 O-O 19. Qxh4 Qc7 20. Rhe1 Be6 21. Nxe6 Nxe6 22. Bxe6 (22. Qb4 Rab8 23. Qd6 $16 {is also promising}) 22... fxe6 23. Rd6 $16) 18. Nf5 $3 $18 {heading for d6.} (18. Rhf1 $16) (18. Ne3 $16) 18... O-O (18... exf5 {this capture clears the b3 bishop's path to f7} 19. Nf6+ gxf6 20. Qxf7#) (18... g6 19. Nd6+ Kf8 20. Qf3 Rh7 21. Rhf1 $18 exd5 22. Bxd5 Be7 23. Bxf7 Kg7 24. Nxc8 Rxc8 25. Bxg6) (18... exd5 19. Nd6+ Kd7 20. Qxf7+ Be7 21. Rxd5 Rf8 22. Nb5+ Kc6 23. Qxe7 Qxb5 (23... b6 24. Nd4#) 24. Qd6#) 19. Nf6+ gxf6 (19... Kh8 20. Nxh6 Bxf6 21. exf6 Nxb3 22. Nf5+ Kg8 23. Ne7#) 20. Qg4+ 1-0