Event: European Individual Chess Championship 2021 - Reykjavik Open
Site: Reykjavik, Iceland
Date: 2021-08-30
White: Koellner, Aaron Noah
WhiteElo: 2248
Black: Jonsson, Olafur Gisli
BlackElo: 1800
Result: 0-1
ECO: D10
Opening: Slav Defense: Exchange Variation, Boor Attack
Variant: Standard

1. d4 { [%eval 0.0] } 1... d5 { [%eval 0.23] } 2. c4 { [%eval 0.0] } 2... c6 { [%eval 0.28] } 3. cxd5 { [%eval 0.13] } 3... cxd5 { [%eval 0.19] } 4. Nc3 { [%eval 0.15] } 4... Nf6 { [%eval 0.21] } 5. f3 { [%eval -0.24] } 5... Nc6 { [%eval 0.0] } 6. e4 { [%eval -0.21] } 6... e6?! { [%eval 0.64] } { Inaccuracy. dxe4 was best. } 7. e5 { [%eval 0.58] } 7... Nd7 { [%eval 0.65] } 8. f4 { [%eval 1.01] } 8... Nb6 { [%eval 0.96] } 9. Nf3 { [%eval 0.9] } 9... a6 { [%eval 1.25] } 10. a3 { [%eval 1.37] } 10... Be7 { [%eval 1.19] } 11. Bd3 { [%eval 1.02] } 11... O-O?! { [%eval 2.03] } { Inaccuracy. f5 was best. } 12. h4 { [%eval 1.95] } 12... f5 { [%eval 1.71] } 13. g4 { [%eval 1.78] } 13... Bd7 { [%eval 1.91] } 14. gxf5 { [%eval 2.11] } 14... exf5 { [%eval 2.08] } 15. Be3?! { [%eval 1.47] } { Inaccuracy. Kf2 was best. } 15... Be8?! { [%eval 2.04] } { Inaccuracy. Rc8 was best. } 16. Qc2? { [%eval 0.64] } { Mistake. h5 was best. } 16... Bh5 { [%eval 0.74] } 17. Ng5?! { [%eval 0.01] } { Inaccuracy. Qg2 was best. } 17... Nc4?? { [%eval 3.9] } { Blunder. Qd7 was best. } 18. Bxc4 { [%eval 4.16] } 18... dxc4 { [%eval 3.37] } 19. Ne6?! { [%eval 2.11] } { Inaccuracy. d5 was best. } 19... Bxh4+?? { [%eval 6.52] } { Blunder. Qb6 was best. } 20. Kf1 { [%eval 6.56] } 20... Qe7 { [%eval 6.46] } 21. Nxf8?! { [%eval 4.95] } { Inaccuracy. d5 was best. } 21... Bf3 { [%eval 4.74] } 22. Qh2?! { [%eval 3.75] } { Inaccuracy. Nxh7 was best. } 22... Bxh1 { [%eval 3.96] } 23. Qxh1 { [%eval 4.06] } 23... Rxf8 { [%eval 3.55] } 24. d5?! { [%eval 2.29] } { Inaccuracy. Rd1 was best. } 24... Nxe5 { [%eval 2.5] } 25. fxe5 { [%eval 2.54] } 25... Qxe5 { [%eval 2.13] } 26. Qxh4 { [%eval 2.07] } 26... Qxe3 { [%eval 2.49] } 27. Re1?? { [%eval 0.0] } { Blunder. Rd1 was best. } 27... Qd3+?? { [%eval 2.11] } { Blunder. Qf3+ was best. } 28. Kf2?? { [%eval 0.0] } { Blunder. Kg1 was best. } 28... f4 { [%eval 0.0] } 29. Re7 { [%eval 0.0] } 29... f3 { [%eval 0.0] } 30. Qg5 { [%eval 0.0] } 30... Qc2+ { [%eval 0.0] } 31. Ke1?? { [%eval -58.09] } { Blunder. Kf1 was best. } 31... f2+ { [%eval #-11] } 32. Kf1 { [%eval #-11] } 32... Qd3+ { [%eval #-10] } 33. Re2 { [%eval -16.6] } 33... Qh3+ { [%eval -57.78] } 34. Qg2 { [%eval #-9] } 34... Qxg2+ { [%eval #-8] } 35. Kxg2 { [%eval #-7] } 35... f1=Q+ { [%eval #-7] } 0-1