Event: European Individual Chess Championship 2021 - Reykjavik Open
Site: Reykjavik, Iceland
Date: 2021-08-29
White: Heidarsson, Arnar Milutin
WhiteElo: 1916
Black: Koellner, Aaron Noah
BlackElo: 2248
Result: 1-0
ECO: C41
Opening: Philidor Defense: Lion Variation
Variant: Standard

1. d4 { [%eval 0.0] } 1... d6?! { [%eval 0.7] } { Inaccuracy. e6 was best. } 2. e4 { [%eval 0.4] } 2... Nf6 { [%eval 0.6] } 3. Nc3 { [%eval 0.52] } 3... e5 { [%eval 0.77] } 4. Nf3 { [%eval 0.5] } 4... Nbd7 { [%eval 0.48] } 5. Bc4 { [%eval 0.49] } 5... Be7 { [%eval 0.4] } 6. O-O { [%eval 0.51] } 6... c6 { [%eval 0.45] } 7. a4 { [%eval 0.44] } 7... a5 { [%eval 0.61] } 8. dxe5 { [%eval 0.4] } 8... dxe5 { [%eval 0.37] } 9. Qe2 { [%eval 0.33] } 9... h6?! { [%eval 1.11] } { Inaccuracy. O-O was best. } 10. Rd1 { [%eval 0.61] } 10... Qc7 { [%eval 0.62] } 11. h3 { [%eval 0.34] } 11... Nf8 { [%eval 0.34] } 12. Be3 { [%eval 0.15] } 12... Ng6 { [%eval 0.11] } 13. Kh2 { [%eval 0.11] } 13... O-O { [%eval 0.21] } 14. g3 { [%eval 0.0] } 14... Kh8 { [%eval -0.07] } 15. Ne1 { [%eval 0.0] } 15... Nf4 { [%eval -0.05] } 16. gxf4 { [%eval -0.48] } 16... exf4 { [%eval -0.36] } 17. e5 { [%eval -0.3] } 17... fxe3 { [%eval -0.5] } 18. Qxe3 { [%eval -0.56] } 18... Nd7 { [%eval -0.64] } 19. f4 { [%eval -0.31] } 19... f6 { [%eval -0.12] } 20. e6 { [%eval -0.25] } 20... Nc5 { [%eval 0.0] } 21. Kh1?! { [%eval -0.74] } { Inaccuracy. Nd3 was best. } 21... f5 { [%eval -0.48] } 22. Nf3 { [%eval -0.99] } 22... Rf6 { [%eval -1.04] } 23. Nd4 { [%eval -1.03] } 23... b6 { [%eval -1.2] } 24. Rg1 { [%eval -1.23] } 24... Bd6 { [%eval -0.88] } 25. e7?! { [%eval -1.56] } { Inaccuracy. Rae1 was best. } 25... Qxe7 { [%eval -1.45] } 26. Qf3? { [%eval -2.9] } { Mistake. Qxe7 was best. } 26... Bb7 { [%eval -3.44] } 27. Rae1 { [%eval -3.41] } 27... Qc7 { [%eval -3.4] } 28. Qh5 { [%eval -2.87] } 28... Raf8 { [%eval -3.44] } 29. Rg6 { [%eval -3.34] } 29... Ne4?? { [%eval 2.6] } { Blunder. b5 was best. } 30. Nxe4 { [%eval 2.75] } 30... fxe4 { [%eval 2.83] } 31. Ne6 { [%eval 2.47] } 31... Rxe6 { [%eval 2.48] } 32. Bxe6?? { [%eval 0.44] } { Blunder. Rxe6 was best. } 32... Bxf4 { [%eval 0.47] } 33. Rxe4 { [%eval 0.45] } 33... Qd6?? { [%eval 3.04] } { Blunder. b5 was best. } 34. Bc8 { [%eval 3.62] } 34... Qd2 { [%eval 4.24] } 35. Rg2?! { [%eval 3.34] } { Inaccuracy. Re2 was best. } 35... Qc1+ { [%eval 2.96] } 36. Rg1 { [%eval 2.99] } 36... Qd2?! { [%eval 4.1] } { Inaccuracy. Qxc2 was best. } 37. Re2 { [%eval 3.88] } 37... Qd4?! { [%eval 5.92] } { Inaccuracy. Bxc8 was best. } 38. Bxb7 { [%eval 5.79] } 38... Qd7 { [%eval 6.59] } 39. Ba6 { [%eval 6.48] } 39... b5 { [%eval 7.31] } 40. axb5 { [%eval 7.46] } 40... cxb5 { [%eval 7.69] } 41. Bxb5 { [%eval 7.15] } 41... Qb7+ { [%eval 8.29] } 42. Rgg2 { [%eval 9.75] } 42... Bg5 { [%eval 12.71] } 43. Re8 { [%eval 13.87] } 43... Qxb5?! { [%eval #11] } { Checkmate is now unavoidable. Rxe8 was best. } 44. Rxf8+ { [%eval #13] } 44... Kh7 { [%eval #10] } 45. Qe8? { [%eval 9.29] } { Lost forced checkmate sequence. Qf3 was best. } 1-0