Insane move by Benjamin

[AdminX]

Position is from a game between Benjamin and Jonny 4.00

White to Move, Move 37

Benjamin plays a very tactical move with lots of complications for us humans to work out.

[pgn]

[Event "60 Minutes/Game"]
[Site "Engine Match"]
[Date "2021.12.31"]
[Round "1"]
[White "Benjamin 1.1"]
[Black "Jonny 4.00"]
[ECO "C05"]
[Result "1/2-1/2"]

1. e4 {book 0s} e6 {book 0s} 2. d4 {book 0s} d5 {book 0s}
3. Nd2 {book 0s} Nf6 {book 0s} 4. e5 {book 0s} Nfd7 {book
0s} 5. c3 {book 0s} c5 {book 0s} 6. Ngf3 {book 0s} Nc6
{book 0s} 7. Bd3 {book 0s} f5 {book 0s} 8. exf6 {book 0s}
Nxf6 {book 0s} 9. O-O {0.00/1 0s} cxd4 {book 0s} 10. cxd4
{0.00/1 0s} Bd6 {book 0s} 11. Nb3 {book 0s} O-O {0.00/21
1:57m} 12. Bg5 {book 0s (Re1)} Qe8 {0.00/22 3:06m} 13. Re1
{+0.27/18 1:10m} Bd7 {+0.08/21 1:53m (Nb4)} 14. a3
{+0.30/18 1:02m (Rc1)} Qh5 {0.00/20 59s (a5)} 15. h3
{+0.05/19 1:28m (Bd2)} e5 {-0.36/19 51s (Rac8)} 16. dxe5
{0.00/20 58s} Nxe5 {-0.13/21 0s} 17. Nxe5 {0.00/17 17s}
Qxg5 {-0.01/21 1:02m} 18. Nxd7 {+0.16/19 5s} Nxd7 {+0.05/20
48s} 19. Nd4 {+0.02/18 19s} Qf4 {-0.13/20 2:19m (Rf6)}
20. Nf3 {+0.26/19 49s} Rac8 {+0.10/20 1:16m} 21. Qb3
{+0.30/19 8s (Qe2)} Nb6 {0.00/21 2:32m} 22. Rad1 {+0.17/21
0s (Re3)} Kh8 {0.00/19 58s (Rf7)} 23. Bc2 {+0.52/19 1:11m
(Kf1)} g6 {+0.18/19 53s} 24. Re2 {+0.59/18 7s} Rf7
{+0.13/19 39s (Bc5)} 25. Rde1 {+0.42/18 1:11m (Qd3)} Rcc7
{+0.10/20 1:16m} 26. Re6 {+0.29/19 0s (Qd3)} Rf6 {0.00/21
1:46m} 27. Re8+ {+0.30/20 0s} Rf8 {0.00/21 25s} 28. R8e3
{+0.28/18 36s (R8e2)} Rff7 {0.00/21 2:13m} 29. Bd3
{+0.25/21 0s (Re6)} Kg7 {0.00/19 48s} 30. Bb5 {+0.41/18 7s}
Rfe7 {-0.01/20 1:07m} 31. Rxe7+ {+0.30/20 0s} Bxe7 {0.00/21
20s (Rxe7)} 32. g3 {+0.34/20 55s} Qf6 {0.00/23 0s} 33. Ne5
{+0.10/19 42s (Kg2)} Bd6 {-0.09/21 1:28m (h5)} 34. Ng4
{+0.04/19 44s (Nf3)} Qd4 {-0.01/19 36s} 35. Re6 {+0.45/19
37s (Rd1)} Bf8 {-0.35/17 31s (Nc4)} 36. Be8 {+0.58/18 1:10m
(Re8)} Nc4 {-0.37/18 56s (Rc1+)} 37. Bxg6 {+1.23/18 39s
(Kg2)} Nxb2 {+0.23/18 1:02m (Nd2)} 38. Nf6 {+1.11/18 55s
(Bh5)} Re7 {+1.13/17 54s (Kh8)} 39. Ne8+ {+1.30/20 56s} Kg8
{+0.73/21 9:54m (Kh8)} 40. Rxe7 {+1.70/20 52s} Bxe7
{+0.50/20 0s} 41. Bc2 {+1.44/20 51s} Nc4 {+0.63/19 0s (b6)}
42. Qxb7 {+1.46/19 41s} Nd2 {+0.60/19 0s} 43. Bxh7+
{+1.98/19 34s} Kh8 {+0.66/20 0s} 44. Bf5 {+1.62/21 1:06m
(Kg2)} Qa1+ {0.00/17 13s} 45. Kh2 {+1.80/21 32s} Nf3+
{0.00/20 0s} 46. Kg2 {+1.15/17 0s} Ne1+ {0.00/20 11s}
47. Kh1 {0.00/22 45s (Kf1)} Nd3+ {0.00/21 23s} 48. Kh2
{0.00/24 33s} Qd4 {0.00/22 0s} 49. Bxd3 {0.00/24 40s} Qxf2+
{0.00/24 0s} 50. Kh1 {0.00/22 0s} Qf3+ {0.00/24 43s}
51. Kh2 {0.00/29 0s} Qf2+ {0.00/27 1:30m} 52. Kh1 {0.00/7
0s} Qf3+ {0.00/27 1:36m} 53. Kh2 {0.00/7 0s} Qf2+ {0.00/28
2:41m (Bc5)} 1/2-1/2
[/pgn]

[bastiball]

Position is from a game between Benjamin and Jonny 4.00

White to Move, Move 37

Benjamin plays a very tactical move with lots of complications for us humans to work out.

[pgn]

[Event "60 Minutes/Game"]
[Site "Engine Match"]
[Date "2021.12.31"]
[Round "1"]
[White "Benjamin 1.1"]
[Black "Jonny 4.00"]
[ECO "C05"]
[Result "1/2-1/2"]

1. e4 {book 0s} e6 {book 0s} 2. d4 {book 0s} d5 {book 0s}
3. Nd2 {book 0s} Nf6 {book 0s} 4. e5 {book 0s} Nfd7 {book
0s} 5. c3 {book 0s} c5 {book 0s} 6. Ngf3 {book 0s} Nc6
{book 0s} 7. Bd3 {book 0s} f5 {book 0s} 8. exf6 {book 0s}
Nxf6 {book 0s} 9. O-O {0.00/1 0s} cxd4 {book 0s} 10. cxd4
{0.00/1 0s} Bd6 {book 0s} 11. Nb3 {book 0s} O-O {0.00/21
1:57m} 12. Bg5 {book 0s (Re1)} Qe8 {0.00/22 3:06m} 13. Re1
{+0.27/18 1:10m} Bd7 {+0.08/21 1:53m (Nb4)} 14. a3
{+0.30/18 1:02m (Rc1)} Qh5 {0.00/20 59s (a5)} 15. h3
{+0.05/19 1:28m (Bd2)} e5 {-0.36/19 51s (Rac8)} 16. dxe5
{0.00/20 58s} Nxe5 {-0.13/21 0s} 17. Nxe5 {0.00/17 17s}
Qxg5 {-0.01/21 1:02m} 18. Nxd7 {+0.16/19 5s} Nxd7 {+0.05/20
48s} 19. Nd4 {+0.02/18 19s} Qf4 {-0.13/20 2:19m (Rf6)}
20. Nf3 {+0.26/19 49s} Rac8 {+0.10/20 1:16m} 21. Qb3
{+0.30/19 8s (Qe2)} Nb6 {0.00/21 2:32m} 22. Rad1 {+0.17/21
0s (Re3)} Kh8 {0.00/19 58s (Rf7)} 23. Bc2 {+0.52/19 1:11m
(Kf1)} g6 {+0.18/19 53s} 24. Re2 {+0.59/18 7s} Rf7
{+0.13/19 39s (Bc5)} 25. Rde1 {+0.42/18 1:11m (Qd3)} Rcc7
{+0.10/20 1:16m} 26. Re6 {+0.29/19 0s (Qd3)} Rf6 {0.00/21
1:46m} 27. Re8+ {+0.30/20 0s} Rf8 {0.00/21 25s} 28. R8e3
{+0.28/18 36s (R8e2)} Rff7 {0.00/21 2:13m} 29. Bd3
{+0.25/21 0s (Re6)} Kg7 {0.00/19 48s} 30. Bb5 {+0.41/18 7s}
Rfe7 {-0.01/20 1:07m} 31. Rxe7+ {+0.30/20 0s} Bxe7 {0.00/21
20s (Rxe7)} 32. g3 {+0.34/20 55s} Qf6 {0.00/23 0s} 33. Ne5
{+0.10/19 42s (Kg2)} Bd6 {-0.09/21 1:28m (h5)} 34. Ng4
{+0.04/19 44s (Nf3)} Qd4 {-0.01/19 36s} 35. Re6 {+0.45/19
37s (Rd1)} Bf8 {-0.35/17 31s (Nc4)} 36. Be8 {+0.58/18 1:10m
(Re8)} Nc4 {-0.37/18 56s (Rc1+)} 37. Bxg6 {+1.23/18 39s
(Kg2)} Nxb2 {+0.23/18 1:02m (Nd2)} 38. Nf6 {+1.11/18 55s
(Bh5)} Re7 {+1.13/17 54s (Kh8)} 39. Ne8+ {+1.30/20 56s} Kg8
{+0.73/21 9:54m (Kh8)} 40. Rxe7 {+1.70/20 52s} Bxe7
{+0.50/20 0s} 41. Bc2 {+1.44/20 51s} Nc4 {+0.63/19 0s (b6)}
42. Qxb7 {+1.46/19 41s} Nd2 {+0.60/19 0s} 43. Bxh7+
{+1.98/19 34s} Kh8 {+0.66/20 0s} 44. Bf5 {+1.62/21 1:06m
(Kg2)} Qa1+ {0.00/17 13s} 45. Kh2 {+1.80/21 32s} Nf3+
{0.00/20 0s} 46. Kg2 {+1.15/17 0s} Ne1+ {0.00/20 11s}
47. Kh1 {0.00/22 45s (Kf1)} Nd3+ {0.00/21 23s} 48. Kh2
{0.00/24 33s} Qd4 {0.00/22 0s} 49. Bxd3 {0.00/24 40s} Qxf2+
{0.00/24 0s} 50. Kh1 {0.00/22 0s} Qf3+ {0.00/24 43s}
51. Kh2 {0.00/29 0s} Qf2+ {0.00/27 1:30m} 52. Kh1 {0.00/7
0s} Qf3+ {0.00/27 1:36m} 53. Kh2 {0.00/7 0s} Qf2+ {0.00/28
2:41m (Bc5)} 1/2-1/2
[/pgn]

Wow, a beautiful move by Benjamin, If I were to move, I'll move Re2 to defend the pawn.

[Chessqueen]

Komodo Dragon moved the same as Benjamin

[pgn][Event "60 Minutes/Game"]
[Site "Engine Match"]
[Date "2021.12.31"]
[Round "1"]
[White "Dragon-2.6-64bit-avx2"]
[Black "Jonny 4.00"]
[Result ""]
[BlackElo "2700"]
[ECO "C05"]
[Opening "French"]
[Variation "Tarrasch, Closed, 7.Ngf3"]
[WhiteElo "2850"]
[TimeControl "180+10"]
[Termination "normal"]
[PlyCount "85"]
[WhiteType "program"]
[BlackType "program"]

1. e4 {book 0s} e6 {book 0s} 2. d4 {book 0s} d5 {book 0s}
3. Nd2 {book 0s} Nf6 {book 0s} 4. e5 {book 0s} Nfd7 {book
0s} 5. c3 {book 0s} c5 {book 0s} 6. Ngf3 {book 0s} Nc6
{book 0s} 7. Bd3 {book 0s} f5 {book 0s} 8. exf6 {book 0s}
Nxf6 {book 0s} 9. O-O {0.00/1 0s} cxd4 {book 0s} 10. cxd4
{0.00/1 0s} Bd6 {book 0s} 11. Nb3 {book 0s} O-O {0.00/21
1:57m} 12. Bg5 {book 0s (Re1)} Qe8 {0.00/22 3:06m} 13. Re1
{+0.27/18 1:10m} Bd7 {+0.08/21 1:53m (Nb4)} 14. a3
{+0.30/18 1:02m (Rc1)} Qh5 {0.00/20 59s (a5)} 15. h3
{+0.05/19 1:28m (Bd2)} e5 {-0.36/19 51s (Rac8)} 16. dxe5
{0.00/20 58s} Nxe5 {-0.13/21 0s} 17. Nxe5 {0.00/17 17s}
Qxg5 {-0.01/21 1:02m} 18. Nxd7 {+0.16/19 5s} Nxd7 {+0.05/20
48s} 19. Nd4 {+0.02/18 19s} Qf4 {-0.13/20 2:19m (Rf6)}
20. Nf3 {+0.26/19 49s} Rac8 {+0.10/20 1:16m} 21. Qb3
{+0.30/19 8s (Qe2)} Nb6 {0.00/21 2:32m} 22. Rad1 {+0.17/21
0s (Re3)} Kh8 {0.00/19 58s (Rf7)} 23. Bc2 {+0.52/19 1:11m
(Kf1)} g6 {+0.18/19 53s} 24. Re2 {+0.59/18 7s} Rf7
{+0.13/19 39s (Bc5)} 25. Rde1 {+0.42/18 1:11m (Qd3)} Rcc7
{+0.10/20 1:16m} 26. Re6 {+0.29/19 0s (Qd3)} Rf6 {0.00/21
1:46m} 27. Re8+ {+0.30/20 0s} Rf8 {0.00/21 25s} 28. R8e3
{+0.28/18 36s (R8e2)} Rff7 {0.00/21 2:13m} 29. Bd3
{+0.25/21 0s (Re6)} Kg7 {0.00/19 48s} 30. Bb5 {+0.41/18 7s}
Rfe7 {-0.01/20 1:07m} 31. Rxe7+ {+0.30/20 0s} Bxe7 {0.00/21
20s (Rxe7)} 32. g3 {+0.34/20 55s} Qf6 {0.00/23 0s} 33. Ne5
{+0.10/19 42s (Kg2)} Bd6 {-0.09/21 1:28m (h5)} 34. Ng4
{+0.04/19 44s (Nf3)} Qd4 {-0.01/19 36s} 35. Re6 {+0.45/19
37s (Rd1)} Bf8 {-0.35/17 31s (Nc4)} 36. Be8 {+0.58/18 1:10m
(Re8)} Nc4 {-0.37/18 56s (Rc1+)} 37. Bxg6 {+1.23/18 39s
(Kg2)} Nxb2 {+0.23/18 1:02m (Nd2)} 38. Nf6 {+1.11/18 55s
(Bh5)} Re7 {+1.13/17 54s (Kh8)} 39. Ne8+[/pgn]

[Chessqueen]

[quote=Chessqueen post_id=916854 time=1641003226 user_id=10732]
I believe that most 2700 ELO engine and above will see this tactic immediately, I set the UCI_ELO to 2850 to be equal to Benjamin
Komodo Dragon moved the same as Benjamin

[pgn][Event "60 Minutes/Game"]
[Site "Engine Match"]
[Date "2021.12.31"]
[Round "1"]
[White "Dragon-2.6-64bit-avx2"]
[Black "Jonny 4.00"]
[Result "*"]
[BlackElo "2700"]
[ECO "C05"]
[Opening "French"]
[Variation "Tarrasch, Closed, 7.Ngf3"]
[WhiteElo "2850"]
[TimeControl "180+10"]
[Termination "normal"]
[PlyCount "77"]
[WhiteType "program"]
[BlackType "program"]


1. e4 {book 0s} e6 {book 0s} 2. d4 {book 0s} d5 {book 0s} 3. Nd2 {book 0s}
Nf6 {book 0s} 4. e5 {book 0s} Nfd7 {book 0s} 5. c3 {book 0s} c5 {book 0s}
6. Ngf3 {book 0s} Nc6 {book 0s} 7. Bd3 {book 0s} f5 {book 0s} 8. exf6 {book
0s} Nxf6 {book 0s} 9. O-O {0s} cxd4 {book 0s} 10. cxd4 {0s} Bd6 {book 0s}
11. Nb3 {book 0s} O-O {1:57m} 12. Bg5 {book 0s} Qe8 {3:06m} 13. Re1 {1:10m}
Bd7 {1:53m} 14. a3 {1:02m} Qh5 {59s} 15. h3 {1:28m} e5 {51s} 16. dxe5 {58s}
Nxe5 {0s} 17. Nxe5 {17s} Qxg5 {1:02m} 18. Nxd7 {5s} Nxd7 {48s} 19. Nd4
{19s} Qf4 {2:19m} 20. Nf3 {49s} Rac8 {1:16m} 21. Qb3 {8s} Nb6 {2:32m} 22.
Rad1 {0s} Kh8 {58s} 23. Bc2 {1:11m} g6 {53s} 24. Re2 {7s} Rf7 {39s} 25.
Rde1 {1:11m} Rcc7 {1:16m} 26. Re6 {0s} Rf6 {1:46m} 27. Re8+ {0s} Rf8 {25s}
28. R8e3 {36s} Rff7 {2:13m} 29. Bd3 {0s} Kg7 {48s} 30. Bb5 {7s} Rfe7
{1:07m} 31. Rxe7+ {0s} Bxe7 {20s} 32. g3 {55s} Qf6 {0s} 33. Ne5 {42s} Bd6
{1:28m} 34. Ng4 {44s} Qd4 {36s} 35. Re6 {37s} Bf8 {31s} 36. Be8 {1:10m} Nc4
{56s} 37. Bxg6 {39s} Nxb2 {1:02m} 38. Nf6 {55s} Re7 {54s} 39. Ne8+ *[/pgn]

[AdminX]

Dragon by Komodo Analysis

[Chessqueen]

[quote=bastiball post_id=916846 time=1641000656 user_id=12767]
[quote=AdminX post_id=916845 time=1640998889 user_id=608]
Position is from a game between Benjamin and Jonny 4.00

White to Move, Move 37

Benjamin plays a very tactical move with lots of complications for us humans to work out.

I set up the position to equal Benjamin strength UCI_ELO 2850 which is equal to Benjamin at T/C 15 minutes plus 10 seconds bonus but I decided to let only Komodo play it out under Demo Arena 3.5.1. I was surprised that White did NOT forced a win with a Knight and Bishop ending even without using EGTB

[pgn][Event "Computer chess game"]
[Site "MININT-UB2PIMJ"]
[Date "2021.12.31"]
[Round "?"]
[White "Dragon-2.6-64bit-avx2"]
[Black "Dragon-2.6-64bit-avx2"]
[Result "1/2-1/2"]
[BlackElo "2850"]
[Time "21:21:51"]
[WhiteElo "2850"]
[TimeControl "180+10"]
[SetUp "1"]
[FEN "4Bb2/ppr3kp/4R1p1/3p4/2nq2N1/PQ4PP/1P3P2/6K1 w - - 9 1"]
[Termination "normal"]
[PlyCount "193"]
[WhiteType "program"]
[BlackType "program"]

1. Bxg6 Nxb2 2. Nf6 Re7 3. Ne8+ Kg8 4. Rxe7 Bxe7 5. Bc2 b6 6. Nc7 Nc4 7.
Qf3 Bc5 8. Ne6 Qe5 9. Nd8 Bxf2+ 10. Qxf2 Qe8 11. Nb7 Qe7 12. Bf5 Nxa3 13.
Qd4 Qe1+ 14. Kg2 Qe2+ 15. Qf2 Qxf2+ 16. Kxf2 Kg7 17. Ke3 Nb5 18. Bd3 Nc7
19. Kd4 a5 20. Nd6 a4 21. Kc3 Ne6 22. Kb4 Kf6 23. Nc8 Ng5 24. h4 Ne4 25. g4
h6 26. Nxb6 Ke5 27. Nxa4 Kf4 28. Be2 Nf2 29. Nc5 Nxg4 30. Ne6+ Kf5 31. Nd4+
Kf4 32. Kc5 Nf6 33. Kd6 Ke4 34. Ke6 Nd7 35. Nb3 Nb6 36. Bb5 h5 37. Be2 Kf4
38. Kf6 Nd7+ 39. Kg6 d4 40. Kxh5 Nf8 41. Nc5 Ke5 42. Bc4 d3 43. Nxd3+ Kf6
44. Nc5 Ng6 45. Nd7+ Kg7 46. Kg5 Nxh4 47. Kxh4 Kh6 48. Bf7 Kg7 49. Bc4 Kh6
50. Ne5 Kh7 51. Kg5 Kg7 52. Be6 Kh7 53. Ng4 Kg7 54. Bb3 Kh8 55. Kf6 Kh7 56.
Be6 Kh8 57. Bf7 Kh7 58. Ba2 Kh8 59. Be6 Kh7 60. Bc4 Kh8 61. Ne5 Kh7 62. Bf7
Kh8 63. Ng6+ Kh7 64. Ne5 Kh8 65. Ng6+ Kh7 66. Kg5 Kg7 67. Bb3 Kh7 68. Ba2
Kg7 69. Bb3 Kh7 70. Be6 Kg7 71. Bd5 Kh7 72. Bb3 Kg7 73. Be6 Kh7 74. Kf6 Kh6
75. Bg4 Kh7 76. Bf5 Kg8 77. Bd3 Kh7 78. Bc2 Kg8 79. Bb3+ Kh7 80. Bf7 Kh6
81. Ne5 Kh7 82. Ng4 Kh8 83. Bg6 Kg8 84. Ne5 Kh8 85. Nf7+ Kg8 86. Bd3 Kf8
87. Bf5 Kg8 88. Bd3 Kf8 89. Nh6 Ke8 90. Bf5 Kd8 91. Bg6 Kc7 92. Kf7 Kc6 93.
Bb1 Kc5 94. Ng4 Kd4 95. Ke8 Kc3 96. Kd7 Kb3 97. Ba2+ {50 moves rule}
1/2-1/2[/pgn]