[Event "CRO (CRO)"] [Site "ICCF"] [Date "????.??.??"] [Round "?"] [White "Vecek, Marjan"] [Black "Petrovic, Dorde R."] [Result "1/2-1/2"] [ECO "B31"] [WhiteElo "2399"] [BlackElo "2414"] [Annotator "Tactical Analysis"] [PlyCount "90"] [EventDate "2025.??.??"] {[%evp 18,90,48,42,44,43,48,44,50,42,48,52,56,56,62,36,45,44,47,52,45,55,48,68,63,45,48,47,68,29,26,28,29,28,35,31,47,24,25,-11,0,-23,-18,-23,-25,-23,-16,-19,-11,-28,-13,-16,0,0,0,0,0,0,0,-17,-19,-15,-22,-41,-23,-22,-25,-31,-33,-39,-63,-53,-26,-36,-52]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Bxc6 dxc6 6. d3 Nf6 7. h3 Nd7 8. Nc3 e5 9. Be3 Qe7 10. Qd2 Nf8 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 11. Rae1 Ne6 12. Ng5 O-O {[%CAl Oc5c4] White is slightly better.} 13. Nxe6 Bxe6 14. b3 b6 {[#]} 15. a4 $146 ({Predecessor:} 15. Ne2 Rae8 16. Bh6 Bc8 17. Bxg7 Kxg7 18. a4 f6 19. f4 exf4 20. Nxf4 Qe5 21. Qf2 {1/2 Olofsson,D (2512)-Churkin,M (2514) RUS-ch12 final email ICCF email 2018}) 15... a5 16. f3 Rae8 17. Kh2 f5 18. exf5 gxf5 19. Bh6 Bd5 20. Bxg7 Qxg7 21. Rf2 (21. Kh1 $5 {[%CAl Rf3f4]}) 21... Kh8 22. Kg1 f4 23. Qc1 (23. Ne4 $14) 23... Re6 $11 24. Kf1 Rg6 25. Ree2 Kg8 {[%CAl Bh8g8,Bg8f8,Bf8e7,Be7d7,Bd7c7][%mdl 32]} 26. Qd2 Rf5 27. Ne4 Kf8 28. c4 (28. Re1 $142) 28... Be6 29. Nd6 Rh5 {[%CAl Oh5h3]} 30. Ke1 $1 Ke7 (30... Bxh3 {is more complex.} 31. Qxf4+ Rf6 32. Qe3 Rxd6 33. gxh3 Qg6) 31. Ne4 {[%CAl Od3d4]} Rf5 {[%CAl Bh5f5,Bf5f7,Bf7b7][%mdl 32]} 32. Kd1 Kd7 33. Rf1 Rf7 34. Rfe1 Kc7 35. Nxc5 $1 {[%csl Oe5][%mdl 64] [#] Discovered Attack, Deflection} bxc5 36. Qxa5+ Kb8 {...e4 is the strong threat.} 37. Rxe5 Rb7 {[%CAl Ob7b3] aiming for ...Rxb3!} 38. Qxc5 {Threatens to win with d4.} (38. Rxe6 Qa1+ 39. Ke2 Qa2+ 40. Qd2 Rxe6+ 41. Kf1 Qxd2 42. Rxe6 Rxb3 43. Kg1 Rb1+ 44. Kh2 Qf2 45. Re8+ Ka7 46. Re7+ Ka6) (38. R1e2 $5 {[%CAl Ra5c5]}) 38... Qd7 39. Kc2 {[#] Strongly threatening R1e2.} (39. Qf8+ $2 Kc7 40. R1e2 Qxd3+ 41. Ke1 Rxg2 42. Qxf4 (42. Qe7+ $2 Bd7 $19) 42... Rxe2+ 43. Rxe2+ Qd6 $17) 39... Rxg2+ 40. R1e2 {Dancing on a razor blade.} Rxe2+ (40... Bxh3 $2 41. Rxg2 Bxg2 42. Qf8+ Ka7 43. b4 $18 (43. Qxf4 Bf1 $16)) (40... Bf5 $5 {[%CAl Rd7d3]} 41. Kb2 (41. Rxg2 $2 Qxd3+ 42. Kc1 Qc3+ 43. Kd1 Rd7+ $19) (41. Qf8+ Kc7 $17) 41... Rxe2+ 42. Rxe2 Bxd3 $15) 41. Rxe2 {And now Qe5+ would win.} Bf5 42. Qf8+ Ka7 43. Qc5+ $1 Ka8 44. Qa5+ Kb8 (44... Ra7 $5 {[%CAl Rd7d3]} 45. Qc3 Qd8 $15) 45. Qd2 Kc8 {An exciting game. Weighted Error Value: White=0.07 (flawless) /Black=0.05 (flawless) . Mistake: White=2 --- Inaccurate: White=1 Black=1 OK: White=19 Black=16 Best: --- Black=1 Strong: White=3 ---} ({Reject} 45... Bxh3 46. Qxf4+ Qc7 47. Qf8+ (47. Re8+ Bc8 $11) 47... Bc8 48. Re8 $11) 1/2-1/2