Event: Round 4: Masiya, Mfundo - Aygen, Ismail
Site: https://lichess.org/broadcast/mersin-metropolitan-municipality-open-2025/round-4/Aq89grSW/2CCAWmZl
Date: 2025-11-11
White: Masiya, Mfundo
WhiteElo: 1958
Black: Aygen, Ismail
BlackElo: 1792
Result: 1/2-1/2
ECO: B31
Opening: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] } 1... c5 { [%eval 0.25] [%clk 1:30:23] } 2. Nf3 { [%eval 0.2] [%clk 0:00:00] } 2... Nc6 { [%eval 0.3] [%clk 0:00:00] } 3. Bb5 { [%eval 0.17] } 3... g6 { [%eval 0.24] [%clk 1:31:12] } 4. Bxc6 { [%eval 0.53] [%clk 0:00:00] } 4... dxc6 { [%eval 0.5] [%clk 0:00:00] } 5. d3 { [%eval 0.4] } 5... Bg7 { [%eval 0.28] [%clk 1:31:59] } 6. h3 { [%eval 0.3] [%clk 0:00:00] } 6... Nf6 { [%eval 0.53] [%clk 0:00:00] } 7. O-O { [%eval 0.25] [%clk 0:00:00] } 7... Nd7 { [%eval 0.42] [%clk 0:00:00] } 8. Nc3 { [%eval 0.47] [%clk 0:00:00] } 8... e5 { [%eval 0.51] [%clk 0:00:00] } 9. Be3 { [%eval 0.48] [%clk 0:00:00] } 9... Qe7 { [%eval 0.41] [%clk 0:00:00] } 10. Qd2 { [%eval 0.43] [%clk 0:00:00] } 10... Nf8 { [%eval 0.57] [%clk 0:00:00] } 11. a3 { [%eval 0.37] [%clk 0:00:00] } 11... Ne6 { [%eval 0.36] [%clk 0:00:00] } 12. b4?! { [%eval -0.24] } { Inaccuracy. Rae1 was best. } { [%clk 0:00:00] } 12... O-O?! { [%eval 0.31] } { Inaccuracy. Nd4 was best. } { [%clk 0:00:00] } 13. Na4 { [%eval -0.16] [%clk 0:00:00] } 13... Nd4 { [%eval -0.14] [%clk 0:00:00] } 14. Nh2 { [%eval -0.5] [%clk 0:00:00] } 14... b6 { [%eval -0.51] [%clk 0:00:00] } 15. Rab1 { [%eval -0.37] [%clk 0:00:00] } 15... Rd8 { [%eval -0.41] [%clk 0:00:00] } 16. c3 { [%eval -0.82] [%clk 0:00:00] } 16... Nb5? { [%eval 0.48] } { Mistake. Ne6 was best. } { [%clk 0:00:00] } 17. bxc5 { [%eval 0.5] [%clk 0:00:00] } 17... Nxa3 { [%eval 0.43] [%clk 0:00:00] } 18. Ra1 { [%eval 0.34] [%clk 0:00:00] } 18... Nc4 { [%eval 0.49] [%clk 0:00:00] } 19. Qe2 { [%eval 0.0] [%clk 0:00:00] } 19... Nxe3 { [%eval 0.0] [%clk 0:00:00] } 20. Qxe3 { [%eval 0.0] [%clk 0:00:00] } 20... b5 { [%eval 0.12] [%clk 0:00:00] } 21. Nb6 { [%eval 0.14] [%clk 0:00:00] } 21... Rb8 { [%eval 0.05] [%clk 0:00:00] } 22. Nxc8 { [%eval 0.11] [%clk 0:00:00] } 22... Rbxc8 { [%eval 0.11] [%clk 0:00:00] } 23. Nf3 { [%eval 0.16] [%clk 0:00:00] } 23... Rd7 { [%eval 0.15] [%clk 0:00:00] } 24. Rfd1 { [%eval 0.26] [%clk 0:00:00] } 24... Rcd8 { [%eval 0.22] [%clk 0:00:00] } 25. Ra6 { [%eval 0.46] [%clk 0:00:00] } 25... Rc7 { [%eval 0.5] [%clk 0:00:00] } 26. d4 { [%eval 0.56] [%clk 0:00:00] } 26... b4?! { [%eval 1.62] } { Inaccuracy. Re8 was best. } { [%clk 0:00:00] } 27. cxb4?! { [%eval 0.51] } { Inaccuracy. d5 was best. } { [%clk 0:00:00] } 27... exd4 { [%eval 0.43] [%clk 0:00:00] } 28. Qd3 { [%eval 0.23] [%clk 0:00:00] } 28... Rb7 { [%eval 0.34] [%clk 0:00:00] } 29. Rb1 { [%eval 0.19] [%clk 0:00:00] } 29... Rdb8?! { [%eval 1.25] } { Inaccuracy. Qe8 was best. } { [%clk 0:00:00] } 30. Rxc6 { [%eval 1.33] [%clk 0:00:00] } 30... Rxb4 { [%eval 1.15] [%clk 0:00:00] } 31. Rxb4 { [%eval 1.03] [%clk 0:00:00] } 31... Rxb4 { [%eval 1.29] [%clk 0:00:00] } 32. Rd6? { [%eval 0.0] } { Mistake. Rc8+ was best. } { [%clk 0:00:00] } 32... a5 { [%eval 0.04] [%clk 0:00:00] } 33. g3 { [%eval 0.0] [%clk 0:00:00] } 33... a4 { [%eval 0.03] [%clk 0:00:00] } 34. Nxd4 { [%eval 0.0] [%clk 0:00:00] } 34... Bxd4 { [%eval 0.0] [%clk 0:00:00] } 35. Rxd4 { [%eval 0.0] [%clk 0:00:00] } 35... Qxc5 { [%eval 0.0] [%clk 0:00:00] } 36. Rd5 { [%eval 0.0] } 36... Qc1+ { [%eval -0.02] } 37. Kg2 { [%eval 0.0] [%clk 0:00:00] } 37... Rb1 { [%eval 0.0] [%clk 0:00:00] } 38. Rd8+ Kg7 1/2-1/2