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Correspondence Chess • BalkanUdo vs A.I. level 1

BalkanUdo (1500) plays A.I. level 1 in a casual Correspondence game of chess. BalkanUdo won by checkmate after 61 moves. Click to replay, analyse, and discuss the game!

C41 Philidor Defense

BalkanUdo (1500?)
7Inaccuracies
4Mistakes
16Blunders
189Average centipawn loss
Stockfish AI level 1 (1350)
5Inaccuracies
8Mistakes
16Blunders
206Average centipawn loss
[Event "Casual Correspondence game"] [Site "https://lichess.org/WY2ap9sZ"] [Date "2018.12.08"] [Round "-"] [White "BalkanUdo"] [Black "lichess AI level 1"] [Result "1-0"] [UTCDate "2018.12.08"] [UTCTime "18:07:52"] [WhiteElo "1500"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "C41"] [Opening "Philidor Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 { [%eval 0.12] } 1... d6 { [%eval 0.25] } 2. d4 { [%eval 0.28] } 2... e5 { [%eval 0.52] } 3. Nf3 { [%eval 0.4] } { C41 Philidor Defense } 3... Nc6 { [%eval 0.78] } 4. Nc3 { [%eval 0.51] } 4... Nf6 { [%eval 0.19] } 5. Bg5 { [%eval 0.18] } 5... Qd7? { (0.18 → 1.20) Mistake. Best move was exd4. } { [%eval 1.2] } (5... exd4 6. Bxf6 Qxf6 7. Nd5 Qd8 8. Bb5 Bd7 9. O-O Be7 10. Nxd4) 6. Bc4 { [%eval 0.86] } 6... Na5? { (0.86 → 2.05) Mistake. Best move was Be7. } { [%eval 2.05] } (6... Be7 7. d5 Nb8 8. O-O h6 9. Be3 O-O 10. a3 Qd8 11. h3 c6 12. dxc6 bxc6 13. Qd3) 7. Bxf6? { (2.05 → 0.44) Mistake. Best move was Bb5. } { [%eval 0.44] } (7. Bb5 c6) 7... gxf6? { (0.44 → 1.80) Mistake. Best move was Nxc4. } { [%eval 1.8] } (7... Nxc4 8. b3 Nb2 9. Qb1 gxf6 10. Qxb2 Qg4 11. h3 Qf4 12. Qc1 Qxc1+ 13. Rxc1 c6 14. O-O) 8. Nb5?? { (1.80 → -5.47) Blunder. Best move was Bb5. } { [%eval -5.47] } (8. Bb5 c6) 8... d5?? { (-5.47 → -1.96) Blunder. Best move was Nxc4. } { [%eval -1.96] } (8... Nxc4) 9. exd5?? { (-1.96 → -4.98) Blunder. Best move was Be2. } { [%eval -4.98] } (9. Be2 dxe4) 9... a6? { (-4.98 → -2.73) Mistake. Best move was Nxc4. } { [%eval -2.73] } (9... Nxc4 10. a4 Nxb2 11. Qb1 a6 12. Nc3 Nc4 13. Qa2 Nb6 14. Ne4 Bg7 15. c4 f5 16. Nc5) 10. Nc3?! { (-2.73 → -3.55) Inaccuracy. Best move was Nxc7+. } { [%eval -3.55] } (10. Nxc7+ Qxc7) 10... Bb4?? { (-3.55 → 0.47) Blunder. Best move was Nxc4. } { [%eval 0.47] } (10... Nxc4 11. dxe5) 11. d6?? { (0.47 → -5.62) Blunder. Best move was Qe2. } { [%eval -5.62] } (11. Qe2 Bxc3+) 11... Qxd6?? { (-5.62 → -0.46) Blunder. Best move was Nxc4. } { [%eval -0.46] } (11... Nxc4 12. O-O Bxc3 13. bxc3 Qxd6 14. dxe5 fxe5 15. Qe2 Be6 16. Rad1 Bd5 17. Rd4 b5 18. Nxe5) 12. dxe5?? { (-0.46 → -4.98) Blunder. Best move was Bd3. } { [%eval -4.98] } (12. Bd3 Be6 13. O-O Bxc3 14. bxc3 O-O-O 15. Qe2 Nc6 16. Rad1 exd4 17. Be4 f5 18. Bxc6 Qxc6) 12... Qxd1+ { [%eval -4.77] } 13. Kxd1 { [%eval -4.88] } 13... Rg8?? { (-4.88 → 0.00) Blunder. Best move was Bxc3. } { [%eval 0.0] } (13... Bxc3 14. bxc3 Nxc4 15. exf6 Rg8 16. Ke2 Be6 17. Nd4 O-O-O 18. Kf1 Rg6 19. f3 Rxf6 20. Kf2) 14. exf6?? { (0.00 → -4.91) Blunder. Best move was Bd3. } { [%eval -4.91] } (14. Bd3 Bxc3 15. bxc3 fxe5 16. Nxe5 Rxg2 17. Ke2 f6 18. Nf3 Bh3 19. Rhg1 Kf7 20. Ke3 b5) 14... Kf8?? { (-4.91 → 0.56) Blunder. Best move was Bxc3. } { [%eval 0.56] } (14... Bxc3) 15. Re1?? { (0.56 → -6.75) Blunder. Best move was Bf1. } { [%eval -6.75] } (15. Bf1 Bxc3 16. bxc3 Rg6 17. Bd3 Rxf6 18. Ke2 Bg4 19. Kf1 Rd8 20. Bxh7 Nc4 21. Ng5 Bf5) 15... Rxg2?? { (-6.75 → -1.79) Blunder. Best move was Nxc4. } { [%eval -1.79] } (15... Nxc4) 16. Ne5? { (-1.79 → -3.77) Mistake. Best move was Be2. } { [%eval -3.77] } (16. Be2) 16... Rxf2? { (-3.77 → -1.68) Mistake. Best move was Nxc4. } { [%eval -1.68] } (16... Nxc4) 17. Bxf7 { [%eval -1.73] } 17... Rxf6 { [%eval -1.58] } 18. Nd5 { [%eval -1.46] } 18... Bxe1 { [%eval -1.56] } 19. Nxf6 { [%eval -1.69] } 19... Bf2? { (-1.69 → -0.23) Mistake. Best move was Bh4. } { [%eval -0.23] } (19... Bh4 20. Ne4 Bf5 21. Ng3 Bxg3 22. hxg3 Nc6 23. Nxc6 Kxf7 24. Ne5+ Kf6 25. Nc4 Rg8 26. Ne3) 20. Nxh7+ { [%eval -0.36] } 20... Ke7?! { (-0.36 → 0.45) Inaccuracy. Best move was Kg7. } { [%eval 0.45] } (20... Kg7 21. Ke2) 21. h4?? { (0.45 → -3.80) Blunder. Best move was Kd2. } { [%eval -3.8] } (21. Kd2 Bd4) 21... Kd8?? { (-3.80 → 0.98) Blunder. Best move was Bg3. } { [%eval 0.98] } (21... Bg3 22. Nc4 Kxf7 23. Nxa5 Kg7 24. Ng5 Bxh4 25. Ne4 Bf5 26. Nxb7 Bxe4 27. Nc5 Bg6 28. Ne6+) 22. h5?! { (0.98 → 0.09) Inaccuracy. Best move was Kd2. } { [%eval 0.09] } (22. Kd2 Bxh4) 22... Bg3 { [%eval 0.11] } 23. h6?? { (0.11 → -4.24) Blunder. Best move was Ng6. } { [%eval -4.24] } (23. Ng6 Bg4+ 24. Kd2 Bxh5 25. Rf1 Nc4+ 26. Bxc4 Bxg6 27. Nf6 Bh4 28. Nd5 Kd7 29. Rg1 Be4) 23... Bf5?? { (-4.24 → 0.82) Blunder. Best move was Bxe5. } { [%eval 0.82] } (23... Bxe5 24. Ke2) 24. Ng5?? { (0.82 → -3.75) Blunder. Best move was Ng6. } { [%eval -3.75] } (24. Ng6 Bxg6 25. Bxg6 Ke7 26. Ke2 Bf4 27. Rh1 Nc6 28. Kf3 Bd2 29. Be4 Nd4+ 30. Kf2 Rd8) 24... Nb3?? { (-3.75 → 5.44) Blunder. Best move was Bxe5. } { [%eval 5.44] } (24... Bxe5 25. Ke2 Ke7 26. Rf1 Bg4+ 27. Ke3 Rf8 28. c3 Bf6 29. Kf4 Bxg5+ 30. Kxg5 Be6 31. Bxe6) 25. h7?? { (5.44 → -0.71) Blunder. Best move was Bxb3. } { [%eval -0.71] } (25. Bxb3) 25... Bxe5?! { (-0.71 → 0.25) Inaccuracy. Best move was Bxc2+. } { [%eval 0.25] } (25... Bxc2+ 26. Ke2 Nd4+ 27. Kd2 Bxe5 28. Re1 Bf4+ 29. Kc3 Kd7 30. Ne4 Bxe4 31. Rxe4 Nb5+ 32. Kd3) 26. cxb3 { [%eval -0.09] } 26... Bf6?! { (-0.09 → 0.83) Inaccuracy. Best move was Bxb2. } { [%eval 0.83] } (26... Bxb2 27. Rc1 Bxh7 28. Nxh7 Bxc1 29. Kxc1 Ke7 30. Bc4 b5 31. Bd3 Rg8 32. a4 bxa4 33. bxa4) 27. Nf3? { (0.83 → -1.29) Mistake. Best move was Rc1. } { [%eval -1.29] } (27. Rc1) 27... Bxb2 { [%eval -1.05] } 28. Rb1?? { (-1.05 → -8.13) Blunder. Best move was Rc1. } { [%eval -8.13] } (28. Rc1 Bxh7 29. Rc5 Ke7 30. Rxc7+ Kd6 31. Rc4 Rf8 32. Bh5 Bd3 33. Rh4 Kc7 34. Ne1 Bb1) 28... Bf6?? { (-8.13 → -1.10) Blunder. Best move was Bxb1. } { [%eval -1.1] } (28... Bxb1 29. Bg8 Kd7 30. a3 Re8 31. Kd2 c6 32. a4 Bf6 33. Ne1 Bf5 34. Nc2 Re7 35. Ne3) 29. h8=Q+ { [%eval -1.21] } 29... Ke7?? { (-1.21 → 22.09) Blunder. Best move was Bxh8. } { [%eval 22.09] } (29... Bxh8 30. Rc1 c6 31. Rc5 Bg4 32. Bh5 Be6 33. Ng5 Bd7 34. Nf7+ Kc7 35. Nxh8 Rxh8 36. Kc2) 30. Qh6? { (22.09 → 8.72) Mistake. Best move was Qxa8. } { [%eval 8.72] } (30. Qxa8) 30... Bxb1? { (8.72 → 10.24) Mistake. Best move was Rh8. } { [%eval 10.24] } (30... Rh8 31. Qf4) 31. Bc4 { [%eval 9.64] } 31... Rh8 { [%eval 9.65] } 32. Qxh8?? { (9.65 → -1.77) Blunder. Best move was Qe3+. } { [%eval -1.77] } (32. Qe3+) 32... Be4?? { (-1.77 → 18.71) Blunder. Best move was Bxh8. } { [%eval 18.71] } (32... Bxh8 33. a3 Kd6 34. Ke2 Bf5 35. Bd3 Be6 36. Nd2 Kc5 37. Be4 b6 38. Kd3 Bb2 39. Nc4) 33. Qxf6+?? { (18.71 → 2.56) Blunder. Best move was Qh3. } { [%eval 2.56] } (33. Qh3) 33... Kxf6 { [%eval 2.57] } 34. a4?? { (2.57 → -1.11) Blunder. Best move was Nd2. } { [%eval -1.11] } (34. Nd2 Bc6 35. Kc2 Ke5 36. Kc3 a5 37. Be2 b6 38. a3 Be8 39. Bf3 Kd6 40. Nc4+ Kc5) 34... a5?? { (-1.11 → 2.63) Blunder. Best move was Bxf3+. } { [%eval 2.63] } (34... Bxf3+ 35. Kd2 Ke5 36. Kc3 a5 37. Bd3 Bd5 38. Bg6 Kf4 39. Bd3 Be4 40. Bc4 Ke5 41. Bf7) 35. Nd4 { [%eval 2.56] } 35... c6 { [%eval 2.56] } 36. Kd2 { [%eval 2.56] } 36... Bg6 { [%eval 2.56] } 37. Bd3 { [%eval 2.56] } 37... Kf7?? { (2.56 → 56.79) Blunder. Best move was Bf7. } { [%eval 56.79] } (37... Bf7 38. Kc3 Ke5 39. Nf3+ Kd6 40. Nd2 b6 41. Kd4 Kc7 42. Be2 Kd6 43. Nc4+ Kc7 44. Ke5) 38. Bxg6+ { [%eval 14.39] } 38... Kxg6?! { (14.39 → Mate in 46) Checkmate is now unavoidable. Best move was Ke7. } { [%eval #46] } (38... Ke7) 39. Ne6 { [%eval 65.76] } 39... Kf6?! { (65.76 → Mate in 37) Checkmate is now unavoidable. Best move was b6. } { [%eval #37] } (39... b6 40. Kc3) 40. Nd8 { [%eval 153.15] } 40... b6 { [%eval #59] } 41. Nb7?? { (Mate in 59 → 0.00) Lost forced checkmate sequence. Best move was Nxc6. } { [%eval 0.0] } (41. Nxc6) 41... Kf5?? { (0.00 → 60.37) Blunder. Best move was Ke7. } { [%eval 60.37] } (41... Ke7 42. Kc3 Kd7 43. Kd4 Kc7 44. Nc5 bxc5+ 45. Kxc5 Kb7 46. b4 Ka6 47. bxa5 Kxa5 48. Kxc6) 42. Nd8 { [%eval 9.14] } 42... b5? { (9.14 → Mate in 24) Checkmate is now unavoidable. Best move was Ke4. } { [%eval #24] } (42... Ke4 43. Nxc6) 43. Nxc6 { [%eval #22] } 43... bxa4 { [%eval #19] } 44. bxa4 { [%eval #18] } 44... Ke4 { [%eval #19] } 45. Nxa5 { [%eval #18] } 45... Kd5 { [%eval #19] } 46. Nb7?? { (Mate in 19 → 0.09) Lost forced checkmate sequence. Best move was Nb3. } { [%eval 0.09] } (46. Nb3 Kd6 47. Kc3 Kc7 48. a5 Kc6 49. Kc4 Kb7 50. Kb5 Kc8 51. a6 Kb8 52. Kb6 Ka8) 46... Ke6?? { (0.09 → Mate in 19) Checkmate is now unavoidable. Best move was Kc4. } { [%eval #19] } (46... Kc4 47. a5 Kb5 48. Kc3 Ka6 49. Kc4 Kxb7 50. Kb5 Ka7 51. a6 Ka8 52. Kb6 Kb8 53. Kc5) 47. a5 { [%eval #20] } 47... Ke7 { [%eval #10] } 48. a6 { [%eval #9] } 48... Kf6 { [%eval #9] } 49. a7 { [%eval #8] } 49... Ke7 { [%eval #8] } 50. a8=Q { [%eval #7] } 50... Kf6 { [%eval #7] } 51. Qa6+ { [%eval #6] } 51... Ke5 { [%eval #5] } 52. Qc6?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was Qg6. } { [%eval #5] } (52. Qg6 Kd4 53. Qf5 Kc4 54. Qd3+ Kb4 55. Kc2 Ka4 56. Qb3#) 52... Kf4 { [%eval #5] } 53. Qd6+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was Qe6. } { [%eval #5] } (53. Qe6 Kg3 54. Ke2 Kh4 55. Qg6 Kh3 56. Kf3 Kh2 57. Qg2#) 53... Kg4 { [%eval #5] } 54. Qe5 { [%eval #4] } 54... Kh3 { [%eval #4] } 55. Qf4?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Qg5. } { [%eval #4] } (55. Qg5 Kh2 56. Ke2 Kh3 57. Kf3 Kh2 58. Qg2#) 55... Kg2 { [%eval #4] } 56. Ke2 { [%eval #3] } 56... Kh1 { [%eval #3] } 57. Qf3+?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qg4. } { [%eval #3] } (57. Qg4 Kh2 58. Kf3 Kh1 59. Qg2#) 57... Kg1 { [%eval #3] } 58. Qf2+?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Qg4+. } { [%eval #4] } (58. Qg4+ Kh1 59. Kf3 Kh2 60. Qg2#) 58... Kh1 { [%eval #4] } 59. Qe1+ { [%eval #3] } 59... Kh2 { [%eval #2] } 60. Kf3 { [%eval #1] } 60... Kh3 { [%eval #1] } 61. Qg3# { White wins by checkmate. } 1-0