[Event "Budpest Open A"] [Site "?"] [Date "2020.08.24"] [Round "4.7"] [White "Yip, M."] [Black "Markos, A."] [Result "1-0"] [ECO "A30"] [WhiteElo "1993"] [BlackElo "2219"] [PlyCount "97"] [SourceVersionDate "2020.08.24"] 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O c5 6. Nc3 Be7 7. b3 O-O 8. Bb2 d6 9. d4 cxd4 10. Nxd4 Bxg2 11. Kxg2 Qc8 12. e3 Nbd7 13. f4 Re8 ({Relevant:} 13... a6 14. Qf3 Re8 15. g4 Nc5 16. g5 Nfd7 17. Rad1 Bf8 18. Rd2 Qc7 19. Rfd1 Rac8 20. h4 Qb7 21. Qxb7 Nxb7 22. Nde2 Rc7 23. Ng3 Rec8 24. Nge4 Ndc5 25. Nxc5 Nxc5 26. Ba3 d5 27. cxd5 Nxb3 28. axb3 Bxa3 29. dxe6 fxe6 30. Ne4 Be7 31. h5 Rc2 32. Kf3 Rxd2 33. Rxd2 Rc7 34. g6 hxg6 35. hxg6 Kf8 36. Rh2 Kg8 37. Rd2 Kf8 38. Rh2 Kg8 {1/2-1/2 (38) Stillger,B (2233)-Noe,C (2531) Schwaebisch Gmuend 2019}) 14. Qf3 Bf8 {[#]} 15. Rac1 $146 {Possibly not the best place for the rook but the plan was to discourage ..b5,d5 freeing breaks with the c-file xray } ({Predecessor:} 15. Rad1 a6 16. g4 Nc5 17. g5 Nfd7 18. b4 Nb7 19. Nb3 a5 20. b5 a4 21. Nd2 a3 22. Ba1 Na5 23. Qe2 Ra7 24. Rf3 f5 25. gxf6 Nxf6 26. Rg3 e5 27. Nde4 Nxe4 28. Nxe4 Rf7 29. fxe5 dxe5 30. Rf1 Qxc4 31. Qxc4 Nxc4 32. Nf6+ Rxf6 33. Rxf6 Nxe3+ 34. Kh3 Nd5 35. Rf5 Nb4 36. Bxe5 Nxa2 37. Rxf8+ Kxf8 38. Bd4 Nb4 39. Rxa3 Nd5 40. Ra7 {1/2-1/2 (40) Hernandez Carmenates,H (2524) -Borges Matos,J (2431) Calvia 2006}) 15... Nc5 {Theatening ..Nd3} 16. Rfd1 { The rooks look nice but White loses some kingside attack potential based on f4-f5} e5 $6 {This surprised me as Black usually plays a waiting game in the Hedgehog} 17. fxe5 dxe5 {The plan ..e4 with tempo and then ..Nd3 is the point of Black's play but White also has some dynamic resources} (17... Rxe5) 18. Nf5 e4 $6 {Establishing the d3-outpost also opens the long diagonal for my bishop} 19. Nh6+ $1 gxh6 (19... Kh8 20. Nxf7+ Kg8 21. Nh6+ {is worse}) 20. Qxf6 Bg7 21. Qf2 (21. Qxg7+ {is too clever and fails} Kxg7 22. Nd5+ (22. Nxe4+) 22... Kf8 $1 (22... Kg8 $6 23. Nf6+)) 21... Nd3 {[#] Black calls the bluff. This is the critical position and the moment of truth for White's line of play} 22. Rxd3 exd3 23. Nd5 {White gets a strong central knight for the exchange, the broken enemy kingside and at some point the loose d3-pawn will fall} Qc6 $13 (23... Qe6 $1 {Holds the position} 24. Bxg7 Kxg7 25. a4 Rad8 $15 {White cannot generate any dangerous threats but the strong knight gives nice looking compensation for the exchange}) 24. Bxg7 $5 Kxg7 25. Rf1 {White regroups with tempo to force a passive defensive move} Rf8 26. e4 {This supports the knight and unpins it at the same time. White is playing for pure position compensation and is in no hurry to regain material} (26. Qb2+ f6 27. Qd4 $44) 26... f6 27. Qd4 Rae8 {White's position is much easier to play} 28. Rf5 { The rook locks down the 5th rank but all the same this might not be best} (28. Rf4 $44 {Secures the e4-pawn and keeps f5 free for the knight possibly}) (28. a4 $44 {Locks up the queenside}) 28... d2 29. Rf4 {White loses a tempo but the position remains about the same} b5 30. Qxd2 h5 $2 {The Rg4 threat must be dealt with} (30... bxc4 31. Qc3 (31. Rg4+ $2 Kh8 32. Qxh6 Rf7 $15) 31... h5 32. bxc4 $44) 31. Qd4 $6 {Too routine} (31. cxb5 Qd6 32. Qd4 $16) 31... bxc4 32. bxc4 Rf7 {Black is reduced to passive defence} 33. Rf5 Qa4 $2 {This was played quickly. Black has a couple of threats but none are dangerous} 34. Nxf6 { I thought White had a winning attack now} Re6 {[#] Neither queen check is particularly effective} (34... Qxa2+ $2 35. Kh3 Ref8 (35... Rb8 36. Ng4+ Kf8 37. Qd6+ Ke8 38. Re5+ $18) 36. Nxh5+ Kg8 37. Rg5+ $18) (34... Qc2+ $2 35. Kh3 Rb8 36. Ng4+ Kg6 37. Qd6+ Kg7 38. Rg5+ Kh8 39. Qxb8+ Rf8 40. Qxf8#) 35. Nxh5+ { First a pawn goes into the bank. This cannot be bad and is a practical approach } (35. Rg5+ $1 Kh6 (35... Kh8 36. Rg8#) (35... Kf8 36. Rg8+ Ke7 {I saw to here and missed the mate} 37. Qd8#) 36. Rxh5+ Kg6 {I had trouble finding the forced win in the game so I broke off the line here} 37. Qd5 $1 $18 {White should win of course but I did not see to the end} Qxa2+ 38. Kh3 Rfxf6 (38... Rexf6 39. Qg5#) 39. Qg5+ Kf7 40. Rxh7+ Ke8 41. Qg8+ Rf8 42. Qxe6+ Kd8 43. Qd7#) 35... Kg8 {White has three pawns for the exchange and an ongoing attack. All I had to do was find the most efficient conversion method} (35... Kf8 $2 36. Qg7+ $18) ( 35... Kg6 36. Nf4+ Kh6 37. Rh5#) (35... Kh6 36. Qd2+ Kg6 37. Qg5#) 36. Qd8+ { The plainest way to win} (36. Rg5+ Rg6 37. Qd8+ Rf8 38. Qd5+ Rf7 39. Rf5 $18) ( 36. Rb5 $1 $18 {This lateral invasion idea was not on my radar} h6 37. Qd8+ Kh7 38. Rb8 {There is no defence} Qc2+ (38... Kg6 39. Qg8+ Kxh5 40. Qxf7+ $18) 39. Kh3 Qc3 40. Qg8#) 36... Qe8 {There is no defence as White can liquidate to a winning rook ending} (36... Re8 $6 37. Qg5+ Kh8 38. Rxf7 $18) 37. Qxe8+ (37. Qg5+) (37. Rg5+) 37... Rxe8 38. Nf6+ Rxf6 39. Rxf6 Rxe4 40. Rf4 (40. Ra6 Rxc4 41. Rxa7 $18) 40... Re3 41. Rf3 (41. c5 Rc3 42. Ra4 Rxc5 43. Rxa7 $18) 41... Re4 42. Rc3 Re2+ 43. Kf3 Rxa2 44. c5 Rd2 45. c6 Rd8 46. Ke4 Kf7 47. c7 Rc8 48. Kd5 Ke7 49. Kc6 1-0