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Correspondence Chess • A.I. level 1 vs BalkanUdo

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!

C26 Vienna Game: Falkbeer Variation

Stockfish AI level 1 (1350)
7Inaccuracies
9Mistakes
10Blunders
113Average centipawn loss
BalkanUdo (1500?)
12Inaccuracies
10Mistakes
7Blunders
95Average centipawn loss
[Event "Casual Correspondence game"] [Site "https://lichess.org/ph96rehq"] [Date "2018.12.08"] [Round "-"] [White "lichess AI level 1"] [Black "BalkanUdo"] [Result "0-1"] [UTCDate "2018.12.08"] [UTCTime "12:14:17"] [WhiteElo "?"] [BlackElo "1500"] [Variant "Standard"] [TimeControl "-"] [ECO "C26"] [Opening "Vienna Game: Falkbeer Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 { [%eval 0.12] } 1... e5 { [%eval 0.37] } 2. Nc3 { [%eval 0.13] } 2... Nf6 { [%eval 0.0] } { C26 Vienna Game: Falkbeer Variation } 3. d3 { [%eval 0.0] } 3... d5 { [%eval 0.0] } 4. Nge2?! { (0.00 → -0.94) Inaccuracy. Best move was exd5. } { [%eval -0.94] } (4. exd5 Nxd5 5. g3 Nc6 6. Bg2 Be6 7. Nf3 Qd7 8. O-O O-O-O) 4... Bc5?! { (-0.94 → -0.22) Inaccuracy. Best move was d4. } { [%eval -0.22] } (4... d4 5. Nb1 Be7 6. h3 Be6 7. c3 c5 8. Ng3 O-O 9. Be2) 5. h3?! { (-0.22 → -0.87) Inaccuracy. Best move was exd5. } { [%eval -0.87] } (5. exd5) 5... Nc6 { [%eval -0.56] } 6. Bd2 { [%eval -0.68] } 6... Be6 { [%eval -0.82] } 7. Nxd5 { [%eval -1.21] } 7... Bxd5?! { (-1.21 → -0.43) Inaccuracy. Best move was Nxd5. } { [%eval -0.43] } (7... Nxd5 8. exd5 Qxd5 9. Nc3 Qd7 10. Ne4 Bb6 11. Be2 O-O-O 12. O-O f5 13. Ng3 Rhf8 14. Bg5) 8. c3? { (-0.43 → -3.42) Mistake. Best move was exd5. } { [%eval -3.42] } (8. exd5 Nxd5 9. Ng3 f5 10. d4 exd4 11. Qe2+ Qe7 12. Qxe7+ Ndxe7 13. Bc4 O-O-O 14. O-O Kb8) 8... Be6 { [%eval -3.56] } 9. Ng3 { [%eval -3.58] } 9... b5?! { (-3.58 → -2.87) Inaccuracy. Best move was h6. } { [%eval -2.87] } (9... h6 10. Qf3 Ne7 11. a3 Ng6 12. Nf5 O-O 13. Be2 Bxf5 14. Qxf5 c6 15. O-O Qd6 16. g3) 10. d4 { [%eval -2.84] } 10... Bxd4?? { (-2.84 → 0.56) Blunder. Best move was exd4. } { [%eval 0.56] } (10... exd4 11. Bxb5 Bd7 12. O-O Rb8 13. a4 O-O 14. Rc1 Bd6 15. Bg5 h6 16. Bxf6 Qxf6 17. Bxc6) 11. Bxb5 { [%eval 0.4] } 11... a6?? { (0.40 → 7.13) Blunder. Best move was Bd7. } { [%eval 7.13] } (11... Bd7) 12. Ba4?? { (7.13 → 0.43) Blunder. Best move was Bxc6+. } { [%eval 0.43] } (12. Bxc6+ Bd7 13. Bxa8 Bxf2+ 14. Kxf2 Qxa8 15. Re1 O-O 16. Bg5 Qa7+ 17. Re3 Qb6 18. Qb3 Qc6) 12... Bd7 { [%eval 0.29] } 13. cxd4 { [%eval 0.63] } 13... exd4? { (0.63 → 2.68) Mistake. Best move was Nxd4. } { [%eval 2.68] } (13... Nxd4 14. O-O O-O 15. Rc1 Rb8 16. Bxd7 Qxd7 17. b3 Rfd8 18. Ba5 Rdc8 19. Qd3 c5 20. Rc4) 14. Rc1 { [%eval 2.4] } 14... a5?? { (2.40 → 7.15) Blunder. Best move was Ne7. } { [%eval 7.15] } (14... Ne7 15. Bf4) 15. Bxc6 { [%eval 7.08] } 15... Bxc6 { [%eval 7.23] } 16. Bf4?? { (7.23 → 1.71) Blunder. Best move was Rxc6. } { [%eval 1.71] } (16. Rxc6) 16... O-O?? { (1.71 → 5.69) Blunder. Best move was Bxe4. } { [%eval 5.69] } (16... Bxe4 17. Qa4+ Qd7 18. Qxd7+ Kxd7 19. Rxc7+ Kd8 20. O-O g5 21. Nxe4 gxf4 22. Rc4 Ke7 23. Nxf6) 17. Bg5?? { (5.69 → 0.39) Blunder. Best move was Rxc6. } { [%eval 0.39] } (17. Rxc6 Nxe4 18. Nf5 Nd6 19. Bxd6 cxd6 20. O-O Qf6 21. Nxd4 Qe5 22. Qd2 Qd5 23. Rd1 Rfc8) 17... h6 { [%eval 0.87] } 18. O-O? { (0.87 → -0.35) Mistake. Best move was Rxc6. } { [%eval -0.35] } (18. Rxc6 hxg5) 18... hxg5? { (-0.35 → 0.83) Mistake. Best move was Bb5. } { [%eval 0.83] } (18... Bb5 19. Bxf6) 19. Rc4?? { (0.83 → -3.58) Blunder. Best move was Rxc6. } { [%eval -3.58] } (19. Rxc6 Re8) 19... Nh7?? { (-3.58 → 1.37) Blunder. Best move was Bb5. } { [%eval 1.37] } (19... Bb5 20. Rxd4 Qe8 21. Re1 Qe5 22. Nf5 g6 23. Ne3 a4 24. Rd2 Rfe8 25. f3 Qg3 26. Qc1) 20. Rc5?? { (1.37 → -3.80) Blunder. Best move was Rxc6. } { [%eval -3.8] } (20. Rxc6) 20... Ra6? { (-3.80 → -2.79) Mistake. Best move was Bb7. } { [%eval -2.79] } (20... Bb7 21. Qb3 Ba6 22. Rfc1 d3 23. Qc3 Qf6 24. e5 Qf4 25. Rd1 Rfd8 26. Rxa5 Nf8 27. Qa3) 21. Re1? { (-2.79 → -3.79) Mistake. Best move was Qc2. } { [%eval -3.79] } (21. Qc2 Bb7) 21... Re8 { [%eval -3.53] } 22. f3?? { (-3.53 → -7.77) Blunder. Best move was Qc1. } { [%eval -7.77] } (22. Qc1) 22... g4? { (-7.77 → -5.24) Mistake. Best move was Qd6. } { [%eval -5.24] } (22... Qd6 23. Rxc6 Rxc6 24. Nf5 Qb4 25. Re2 Rd8 26. Rd2 Qc5 27. Kh1 Nf8 28. Ne3 Ne6 29. Nd5) 23. fxg4? { (-5.24 → -7.60) Mistake. Best move was Qc1. } { [%eval -7.6] } (23. Qc1 d3 24. Qc3 gxf3 25. Nh5 f2+ 26. Kxf2 Nf6 27. Nxf6+ Qxf6+ 28. Qxf6 gxf6 29. Rc3 Rd8) 23... Nf6? { (-7.60 → -4.79) Mistake. Best move was Qd6. } { [%eval -4.79] } (23... Qd6 24. Rxc6 Rxc6 25. Nf5 Qb4 26. a3 Qxb2 27. Qxd4 Qxd4+ 28. Nxd4 Rc4 29. Nb3 Ra4 30. e5) 24. Qc2?? { (-4.79 → -8.23) Blunder. Best move was Rc4. } { [%eval -8.23] } (24. Rc4) 24... Bxe4? { (-8.23 → -6.50) Mistake. Best move was d3. } { [%eval -6.5] } (24... d3 25. Qd2) 25. Qd2? { (-6.50 → -7.55) Mistake. Best move was Nxe4. } { [%eval -7.55] } (25. Nxe4 Rxe4 26. Rxe4 d3 27. Qc4 d2 28. Rd4 Rd6 29. Rxd2 Rxd2 30. Rf5 Rxb2 31. Kh2 Qd6+) 25... d3 { [%eval -7.29] } 26. Rc4? { (-7.29 → -8.32) Mistake. Best move was Rcc1. } { [%eval -8.32] } (26. Rcc1 Rae6) 26... Rae6 { [%eval -7.89] } 27. Rd1? { (-7.89 → -9.60) Mistake. Best move was b3. } { [%eval -9.6] } (27. b3 Qd6 28. Qf2 Bg6 29. Rxe6 Qxe6 30. Nf1 Qe2 31. Rd4 Qxf2+ 32. Kxf2 Re2+ 33. Kg3 Be4) 27... c5? { (-9.60 → -7.93) Mistake. Best move was Bxg2. } { [%eval -7.93] } (27... Bxg2) 28. g5 { [%eval -7.73] } 28... Nd5? { (-7.73 → -6.35) Mistake. Best move was Qb8. } { [%eval -6.35] } (28... Qb8 29. Nxe4 Nxe4 30. Qxd3 Ng3 31. Qd2 Re2 32. Qd3 Re1+ 33. Rxe1 Rxe1+ 34. Kf2 Rf1+ 35. Qxf1) 29. Rxe4 { [%eval -6.36] } 29... Rxe4 { [%eval -6.25] } 30. Nxe4 { [%eval -6.14] } 30... Rxe4 { [%eval -6.25] } 31. Rf1?? { (-6.25 → -11.57) Blunder. Best move was Qxd3. } { [%eval -11.57] } (31. Qxd3 Rd4) 31... Qe8?? { (-11.57 → -6.87) Blunder. Best move was Ne3. } { [%eval -6.87] } (31... Ne3) 32. b3?? { (-6.87 → -12.54) Blunder. Best move was Qxd3. } { [%eval -12.54] } (32. Qxd3 Nf4) 32... Nf4 { [%eval -12.01] } 33. Kh1 { [%eval -13.14] } 33... Qe5 { [%eval -12.37] } 34. h4?! { (-12.37 → Mate in 7) Checkmate is now unavoidable. Best move was g6. } { [%eval #-7] } (34. g6 fxg6) 34... Qe8? { (Mate in 7 → -9.44) Lost forced checkmate sequence. Best move was Ne2. } { [%eval -9.44] } (34... Ne2 35. Qe1 Ng3+ 36. Qxg3 Qxg3 37. g6 Re2 38. gxf7+ Kf8 39. Rf2 Re1+ 40. Rf1 Rxf1#) 35. Qxa5? { (-9.44 → Mate in 10) Checkmate is now unavoidable. Best move was Rxf4. } { [%eval #-10] } (35. Rxf4 Re1+ 36. Kh2 Qe5 37. g6 Re2 38. Qxd3 Qxf4+ 39. Qg3 Qxg3+ 40. Kxg3 Rxa2 41. Kf3 fxg6) 35... Ne6?! { (Mate in 10 → -12.70) Lost forced checkmate sequence. Best move was Ne2. } { [%eval -12.7] } (35... Ne2 36. Qe1 d2 37. Qf2 Rf4 38. Qxf4 Nxf4 39. Rxf4 d1=Q+ 40. Kh2 Qe5 41. Kg3 Qd3+ 42. Kg4) 36. Qd2 { [%eval -14.97] } 36... Nf4? { (-14.97 → -7.80) Mistake. Best move was Rxh4+. } { [%eval -7.8] } (36... Rxh4+) 37. Rxf4 { [%eval -7.44] } 37... Rxf4 { [%eval -7.46] } 38. Qxf4 { [%eval -5.98] } 38... Qe1+ { [%eval -6.85] } 39. Kh2 { [%eval -5.75] } 39... f5?? { (-5.75 → 1.85) Blunder. Best move was Qb4. } { [%eval 1.85] } (39... Qb4) 40. h5? { (1.85 → 0.00) Mistake. Best move was Qc4+. } { [%eval 0.0] } (40. Qc4+ Kf8) 40... d2 { [%eval 0.0] } 41. Qxf5?? { (0.00 → -13.73) Blunder. Best move was Qb8+. } { [%eval -13.73] } (41. Qb8+ Kf7 42. Qb7+ Ke6 43. Qc6+ Ke5 44. Qxc5+ Kf4 45. Qd4+ Kxg5 46. Qxg7+ Kh4 47. Qf6+ Kxh5) 41... d1=Q { [%eval -13.16] } 42. h6?! { (-13.16 → Mate in 3) Checkmate is now unavoidable. Best move was Qc8+. } { [%eval #-3] } (42. Qc8+ Kf7 43. Qf5+ Ke8 44. Qc8+ Qd8 45. Qxd8+ Kxd8 46. h6 Qh4+ 47. Kg1 Qxg5 48. hxg7 Qxg7) 42... Qdd2?! { (Mate in 3 → -12.73) Lost forced checkmate sequence. Best move was Qd6+. } { [%eval -12.73] } (42... Qd6+ 43. Qe5 Qdxe5+ 44. Kh3 Q1g3#) 43. h7+ { [%eval -14.21] } 43... Kh8 { [%eval -13.11] } 44. a3?! { (-13.11 → Mate in 3) Checkmate is now unavoidable. Best move was Qc8+. } { [%eval #-3] } (44. Qc8+ Kxh7) 44... Qde3?! { (Mate in 3 → -73.30) Lost forced checkmate sequence. Best move was Qd6+. } { [%eval -73.3] } (44... Qd6+ 45. Qe5 Qdxe5+ 46. Kh3 Q1g3#) 45. Qf3?! { (-73.30 → Mate in 4) Checkmate is now unavoidable. Best move was Qc8+. } { [%eval #-4] } (45. Qc8+ Kxh7) 45... Q1e2?! { (Mate in 4 → -24.26) Lost forced checkmate sequence. Best move was Qh4+. } { [%eval -24.26] } (45... Qh4+ 46. Qh3 Qef4+ 47. g3 Qf2+ 48. Kh1 Qxh3#) 46. Qxe3 { [%eval -62.4] } 46... Qxe3 { [%eval -60.95] } 47. g6?! { (-60.95 → Mate in 9) Checkmate is now unavoidable. Best move was a4. } { [%eval #-9] } (47. a4 Qxb3) 47... Qxb3 { [%eval #-8] } 48. a4 { [%eval #-8] } 48... c4 { [%eval #-8] } 49. Kg1 { [%eval #-5] } 49... c3 { [%eval #-4] } 50. a5 { [%eval #-4] } 50... c2 { [%eval #-3] } 51. Kh2 { [%eval #-3] } 51... c1=Q { [%eval #-2] } 52. a6 { [%eval #-2] } 52... Qba3?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qe1. } { [%eval #-3] } (52... Qe1 53. a7 Qbg3#) 53. g4 { [%eval #-2] } 53... Qxa6?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qd2+. } { [%eval #-3] } (53... Qd2+ 54. Kg1 Qa1#) 54. Kg2 { [%eval #-3] } 54... Qg5?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qaf1+. } { [%eval #-3] } (54... Qaf1+ 55. Kg3 Qe3+ 56. Kh4 Qh1#) 55. Kg3 { [%eval #-2] } 55... Qgxg6?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qe2. } { [%eval #-3] } (55... Qe2 56. Kh3 Qgxg4#) 56. Kh4 { [%eval #-3] } 56... Qxh7+ { [%eval #-2] } 57. Kg3 { [%eval #-2] } 57... Qa4?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qf1. } { [%eval #-3] } (57... Qf1 58. g5 Qhh3#) 58. Kf3 { [%eval #-3] } 58... Qd3+ { [%eval #-2] } 59. Kf2 { [%eval #-2] } 59... Qa2+ { [%eval #-1] } 60. Kg1 { [%eval #-1] } 60... Qd1# { Black wins by checkmate. } 0-1