[Event "Kramnik Challenge 2021"] [White "Vincent Keymer"] [Black "Carissa Yip"] [Site "chess24.com INT"] [Round "9.1"] [Annotator ""] [Result "1-0"] [Date "2021.08.14"] [WhiteElo "2602"] [BlackElo "2404"] [PlyCount "83"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be2 {The Classical variation} d6 { The King's Indian Defense} 6. Nf3 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 {The Bayonet Attack} a5 10. bxa5 Rxa5 11. a4 ({If} 11. Nd2 {I prefer this line for the bishop at e2 to check on knight at f6 if jumps to h5 square. As well as the knight goes to b3 to support push either the a-pawn or c-pawn.} )Nd7 { IM Carissa Yip is following the theory of King's Indian defense. 1. Preparing f7 to f5 push to pressure e4 pawn. 2. To place the knight at c5 pressures the e4 too.} 12. Ba3 h6 13. Nd2 {Here comes the knight heading to b3. It is always Bayonet's plan to weaken the pawn structure of black at queen side specially the c7 and d6 pawns.} Ra8 14. Nb3 f5 15. c5 {Yes, black allowed the c5 push but... let's see white's strategy how to undermine the queenside.} Nf6 16. f3 { Yes, this move is a must to maintain the pawn chain.} f4 {This is too late.. white will slowly break the pawn connection then slowly attack the d6 pawn as well as occupy the c7 square by either rook or knight.} 17. Nd2 {This knight goes to c4 square to add pressure on d6 pawn. and to occupy the b6 square if there is chance to do so.} g5 {If you check the game of GM Ivanchuk vs. GM Radjabov (The King's Indian Chronicles 2) black was able to control white's pressure at queenside by moving 13...c5.} 18. Nb5 Ne8 19. Rc1 {Continous build-up of white pieces.} Ng6 20. Nc4 Rf6 {Need to protect the d6 pawn.} 21. cxd6 cxd6 22. a5 {b6 square is landing point for the knight obviously.} Ra6 23. Nb6 Rxb6 {Black thinks of counter-attacking, let's find out if the exchange sacrifice is worth it.} ({If} 23... Bd7 24. Nxd7 Qxd7 25. Bb4 Bf8 26. Qb3 Ra8 27. Rc3 Rf7 28. Rfc1 {White has the Power Play here.} )24. axb6 Qxb6+ 25. Rf2 ({If} 25. Kh1 Bd7 26. Rb1 Qa5 27. Qb3 Nh4 28. Qb4 Qa8 29. Rb3 {White has no problem.} )Bd7 26. Rb1 Qd8 27. Nc3 Qa5 28. Bb4 Qd8 29. Bb5 Bc8 30. Qa4 { White controls the tempo of the game.} Nc7 31. Ba5 {Black did not see this move probably.} Rf7 32. Rc2 g4 33. Bf1 {Timely, defense...} g3 34. h3 {Only move.} Qf8 35. Qc4 Na6 36. Na4 Bd7 37. Nb6 {See how important the b6 square...} Be8 38. Qc8 {Notice: This is how pawns can become POSITIONAL LIABILITY. The black pawns became FORTRESS to protect the white king.} Nc5 39. Bb4 Bf6 40. Bxc5 dxc5 41. d6 {Here comes the white bishop....} Bg7 42. Bc4 {Simply Amazing. That is the power of the Bayonet Attack. Disrupting first the pawn chain c7-d6 then occupy b6 square on a toxic precision maneuvering. Congrats!! GM Vincent Keyner...} 1-0