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Correspondence Chess • Derwent, Ethan (943) vs Gu, Sean (1542)

Derwent, Ethan (943) plays Gu, Sean (1542) in a casual imported game of chess. Derwent, Ethan (943) won by checkmate after 61 moves. Click to replay, analyse, and discuss the game!

A40 Mikenas Defense

Derwent, Ethan (943)
4Inaccuracies
2Mistakes
0Blunders
14Average centipawn loss
Gu, Sean (1542)
6Inaccuracies
2Mistakes
1Blunders
31Average centipawn loss
[Event "AUS-ch U12"] [Site "https://lichess.org/fURcYEaO"] [Date "2009.01.03"] [Round "2"] [White "Derwent, Ethan (943)"] [Black "Gu, Sean (1542)"] [Result "1-0"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A40"] [Opening "Mikenas Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 { [%eval 0.13] } 1... Nc6?! { (0.13 → 0.66) Inaccuracy. Best move was d5. } { [%eval 0.66] } { A40 Mikenas Defense } (1... d5 2. Nf3 e6 3. e3 Nf6 4. c4 c5 5. Nc3 Nc6 6. cxd5 Nxd5 7. Bb5 cxd4 8. Nxd4) 2. c4 { [%eval 0.4] } 2... e5 { [%eval 0.39] } 3. d5 { [%eval 0.43] } 3... Bb4+ { [%eval 0.41] } 4. Bd2 { [%eval 0.2] } 4... Bxd2+ { [%eval 0.23] } 5. Nxd2 { [%eval 0.08] } 5... Nce7 { [%eval 0.03] } 6. e4 { [%eval 0.18] } 6... d6 { [%eval 0.2] } 7. Ngf3 { [%eval -0.02] } 7... f5 { [%eval 0.19] } 8. Be2 { [%eval -0.16] } 8... Nf6 { [%eval -0.12] } 9. Qc2 { [%eval -0.1] } 9... O-O { [%eval -0.18] } 10. O-O { [%eval -0.04] } 10... Bd7 { [%eval 0.16] } 11. c5?! { (0.16 → -0.46) Inaccuracy. Best move was Bd3. } { [%eval -0.46] } (11. Bd3 fxe4 12. Nxe4 h6 13. Nxf6+ Rxf6 14. Rfe1 Bf5 15. Nd2 Bxd3 16. Qxd3 Nf5 17. Nf3 Rf8) 11... Rc8 { [%eval -0.23] } 12. Qb3?! { (-0.23 → -1.00) Inaccuracy. Best move was Bd3. } { [%eval -1.0] } (12. Bd3 fxe4 13. Nxe4 Nexd5 14. cxd6 Kh8 15. Nxe5 cxd6 16. Nxd6 Rxc2 17. Ndf7+ Kg8 18. Nxd8 Rxb2) 12... fxe4 { [%eval -0.89] } 13. Ng5 { [%eval -1.05] } 13... Kh8? { (-1.05 → 0.00) Mistake. Best move was Nf5. } { [%eval 0.0] } (13... Nf5 14. Ndxe4 Nd4 15. Qd1 h6 16. Ne6 Bxe6 17. Nxf6+ Qxf6 18. dxe6 Nxe2+ 19. Qxe2 Qxe6 20. Rfe1) 14. Ndxe4 { [%eval 0.0] } 14... Nexd5 { [%eval 0.0] } 15. cxd6 { [%eval -0.27] } 15... h6?! { (-0.27 → 0.30) Inaccuracy. Best move was Nf4. } { [%eval 0.3] } (15... Nf4) 16. Nxf6 { [%eval 0.28] } 16... Qxf6 { [%eval 0.25] } 17. Qxd5 { [%eval 0.22] } 17... Qxg5?! { (0.22 → 0.95) Inaccuracy. Best move was Bc6. } { [%eval 0.95] } (17... Bc6) 18. Qxb7 { [%eval 0.44] } 18... Rb8? { (0.44 → 1.85) Mistake. Best move was e4. } { [%eval 1.85] } (18... e4) 19. Qd5? { (1.85 → 0.21) Mistake. Best move was Qxc7. } { [%eval 0.21] } (19. Qxc7 Rfd8 20. Bf3 Rxb2 21. Rab1 Rxb1 22. Rxb1 Bf5 23. Rd1 Rd7 24. Qc6 Qg6 25. Qc5 e4) 19... c6 { [%eval 0.54] } 20. Qd3 { [%eval 0.23] } 20... Rxb2 { [%eval 0.28] } 21. Rfb1 { [%eval -0.09] } 21... Rxb1+ { [%eval 0.21] } 22. Rxb1 { [%eval 0.08] } 22... Bf5 { [%eval 0.14] } 23. Qf3 { [%eval 0.12] } 23... Qd8 { [%eval 0.18] } 24. Rc1 { [%eval 0.04] } 24... Qxd6 { [%eval 0.03] } 25. Rxc6 { [%eval 0.09] } 25... Qe7 { [%eval 0.47] } 26. Qc3 { [%eval 0.44] } 26... Qb7 { [%eval 0.47] } 27. h3 { [%eval 0.19] } 27... Be4 { [%eval 0.62] } 28. Rc7 { [%eval 0.34] } 28... Qb1+ { [%eval 0.53] } 29. Bf1 { [%eval 0.54] } 29... Qxa2?! { (0.54 → 1.05) Inaccuracy. Best move was Rf6. } { [%eval 1.05] } (29... Rf6 30. Qc4) 30. Qxe5? { (1.05 → -0.35) Mistake. Best move was f3. } { [%eval -0.35] } (30. f3 Qb1 31. Qxe5 Qb6+ 32. Kh1 Qg6 33. Rxa7 Re8 34. Qd4 Bc6 35. Kh2 Qg5 36. h4 Rd8) 30... Qxf2+ { [%eval -0.37] } 31. Kh2 { [%eval -0.38] } 31... Qf4+ { [%eval -0.35] } 32. Qxf4 { [%eval -0.36] } 32... Rxf4 { [%eval -0.38] } 33. Kg1 { [%eval -0.34] } 33... a5 { [%eval -0.34] } 34. Ra7 { [%eval -0.41] } 34... Rf5 { [%eval -0.42] } 35. Bc4 { [%eval -0.66] } 35... Rc5 { [%eval -0.66] } 36. Bf7 { [%eval -0.67] } 36... Rc1+ { [%eval -0.37] } 37. Kf2 { [%eval -0.39] } 37... Rc2+ { [%eval -0.39] } 38. Ke3 { [%eval -0.53] } 38... Bxg2 { [%eval -0.93] } 39. Bg6 { [%eval -1.14] } 39... Bxh3?? { (-1.14 → 47.66) Blunder. Best move was Rc8. } { [%eval 47.66] } (39... Rc8 40. Rxa5 Bxh3 41. Kf2 Kg8 42. Kg3 Rc3+ 43. Kf4 Rc6 44. Ra8+ Rc8 45. Ra5 Be6 46. Ra6) 40. Bxc2 { [%eval 11.45] } 40... g5 { [%eval 125.74] } 41. Rxa5 { [%eval 52.66] } 41... Kg7 { [%eval 111.66] } 42. Ra7+ { [%eval 46.76] } 42... Kf6 { [%eval 105.09] } 43. Ra6+ { [%eval 46.17] } 43... Kg7?! { (46.17 → Mate in 28) Checkmate is now unavoidable. Best move was Ke5. } { [%eval #28] } (43... Ke5 44. Rxh6 g4 45. Be4 Bf1 46. Rg6 Bh3 47. Rg5+ Kf6 48. Kf4 Ke6 49. Bf5+ Kd6 50. Ke3) 44. Rg6+ { [%eval 49.43] } 44... Kf7 { [%eval 48.68] } 45. Rxh6 { [%eval 46.14] } 45... g4?! { (46.14 → Mate in 15) Checkmate is now unavoidable. Best move was Be6. } { [%eval #15] } (45... Be6 46. Kd4 Ke7 47. Rg6 Bf7 48. Rxg5 Kf6 49. Rf5+ Ke7 50. Be4 Be8 51. Re5+ Kf7 52. Bg6+) 46. Kf4 { [%eval #14] } 46... Kg7 { [%eval #14] } 47. Rb6 { [%eval #13] } 47... Kf7 { [%eval #12] } 48. Bf5 { [%eval #11] } 48... Bg2 { [%eval #11] } 49. Bxg4 { [%eval #10] } 49... Ke7 { [%eval #10] } 50. Ke5 { [%eval #9] } 50... Kf7 { [%eval #8] } 51. Ra6 { [%eval #8] } 51... Kg7 { [%eval #7] } 52. Kf5 { [%eval #9] } 52... Bd5 { [%eval #8] } 53. Kg5 { [%eval #9] } 53... Kf7 { [%eval #9] } 54. Ra7+ { [%eval #9] } 54... Ke8 { [%eval #10] } 55. Kf6 { [%eval #9] } 55... Kf8 { [%eval #4] } 56. Rd7 { [%eval #3] } 56... Bc6 { [%eval #3] } 57. Rd8+ { [%eval #2] } 57... Be8 { [%eval #2] } 58. Bh5?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Bf5. } { [%eval #2] } (58. Bf5 Kg8 59. Rxe8#) 58... Kg8 { [%eval #2] } 59. Rxe8+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Bg6. } { [%eval #2] } (59. Bg6 Kf8 60. Rxe8#) 59... Kh7 { [%eval #2] } 60. Bg6+ { [%eval #1] } 60... Kh6 { [%eval #1] } 61. Rh8# { White wins by checkmate. } 1-0