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 Speculative Sacrifice Games

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Chris Whittington




Posts : 1254
Join date : 2020-11-17
Location : France

Speculative Sacrifice Games Empty
PostSubject: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyTue Feb 28, 2023 7:05 pm

sac sac sac, are they tactically sound or just speculations that work?

[pgn]
[Event "?"]
[Site "?"]
[Date "2023.02.28"]
[Round "65"]
[White "Chess-System-Tal-1.59"]
[Black "Berserk_10"]
[Result "1-0"]
[ECO "B32"]
[Opening "Sicilian defense"]
[TimeControl "20+0.05"]
[Termination "adjudication"]
[PlyCount "72"]
[GameDuration "00:00:28"]
[GameEndTime "2023-02-28T18:36:37.078 W. Europe Standard Time"]
[GameStartTime "2023-02-28T18:36:08.327 W. Europe Standard Time"]

1. e4 { book } 1... c5 { book } 2. Nf3 { book } 2... Nc6 { book } 3. d4 {
book } 3... cxd4 { book } 4. Nxd4 { book } 4... e6 { book } 5. Nc3 { book }
5... d6 { book } 6. Be3 { book } 6... Nf6 { book } 7. f4 { book } 7... Be7
{ book } 8. Qf3 { book } 8... O-O { book } 9. O-O-O { +1.27/16 1.0s } 9...
Qc7 { -0.35/17 0.66s } 10. Rg1 { +0.88/13 0.70s } 10... Nxd4 { -0.14/14
0.32s } 11. Rxd4 { +0.44/15 0.65s } 11... Bd7 { 0.00/15 0.28s } 12. Bd3 {
+1.07/15 0.81s } 12... e5 { 0.00/16 0.28s } 13. Rb4 { +1.16/15 1.4s } 13...
Bg4 { -0.30/19 4.1s } 14. Qg3 { +0.89/16 0.83s } 14... Bd7 { -0.38/19 1.2s
} 15. Qf3 { 0.00/4 0.002s } 15... Bg4 { -0.35/18 0.37s } 16. Qg3 { 0.00/4
0.001s } 16... Bd7 { -0.49/18 0.34s } 17. f5 { +1.51/14 0.63s } 17... Rfc8
{ -0.34/19 1.1s } 18. Nd5 { +0.97/13 0.72s } 18... Nxd5 { -0.23/16 0.24s }
19. exd5 { +1.26/15 0.68s } 19... Bf6 { -0.46/18 0.73s } 20. Kb1 { +1.20/15
0.56s } 20... b5 { -0.17/17 0.44s } 21. Rg4 { +1.03/13 0.35s } 21... Kh8 {
-1.00/16 0.55s } 22. Qh3 { +2.21/14 0.54s } 22... Kg8 { -1.29/18 1.5s } 23.
Qg3 { 0.00/4 0.002s } 23... Kh8 { -1.07/18 0.66s } 24. Qh3 { 0.00/4 0.003s
} 24... Kg8 { -0.84/17 0.35s } 25. Bh6 { +3.96/14 0.47s } 25... Kf8 {
-2.17/17 0.88s } 26. Rxg7 { +4.19/17 0.72s } 26... Bxg7 { -0.86/18 0.12s }
27. Bxg7+ { +16.00/14 0.36s } 27... Kxg7 { -1.12/20 0.31s } 28. f6+ {
+M21/36 0.26s } 28... Kxf6 { -0.99/20 0.20s } 29. Rf1+ { +M19/39 0.24s }
29... Ke7 { -1.03/18 0.10s } 30. Rxf7+ { +M17/40 0.28s } 30... Kxf7 {
-M16/39 0.45s } 31. Qxh7+ { +M15/45 0.23s } 31... Kf8 { -M14/39 0.11s } 32.
Qh6+ { +M13/51 0.27s } 32... Kf7 { -M12/42 0.093s } 33. Bg6+ { +M11/53
0.24s } 33... Kf6 { -M10/45 0.080s } 34. Bh7+ { +M9/55 0.23s } 34... Kf7 {
-M8/54 0.071s } 35. Qg6+ { +M7/71 0.21s } 35... Ke7 { -M6/77 0.36s } 36.
Qg7+ { +M5/88 0.14s } 36... Kd8 { -M4/127 0.13s, White wins by adjudication
} 1-0

[/pgn]

Mclane, Brendan, TheSelfImprover, Damir Desevac, Dio and Ipmanchess like this post

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Chris Whittington




Posts : 1254
Join date : 2020-11-17
Location : France

Speculative Sacrifice Games Empty
PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyTue Feb 28, 2023 7:35 pm

you got to love it when black finally gets to castle ...

[pgn]
[Event "?"]
[Site "?"]
[Date "2023.02.28"]
[Round "77"]
[White "Chess-System-Tal-1.59"]
[Black "SlowChess_2.9"]
[Result "1-0"]
[ECO "D07"]
[Opening "QGD"]
[Variation "Chigorin defense"]
[TimeControl "20+0.05"]
[Termination "adjudication"]
[PlyCount "126"]
[GameDuration "00"]
[GameEndTime "2023-02-28T19.439 W. Europe Standard Time"]
[GameStartTime "2023-02-28T19.588 W. Europe Standard Time"]

1. d4 { book } 1... d5 { book } 2. c4 { book } 2... Nc6 { book } 3. Nf3 {
book } 3... Bg4 { book } 4. Nc3 { book } 4... e6 { book } 5. Bg5 { book }
5... Nge7 { book } 6. e3 { book } 6... Qd7 { book } 7. h3 { book } 7... Bf5
{ book } 8. Rc1 { book } 8... a6 { book } 9. Be2 { +1.77/16 0.81s } 9...
dxc4 { -0.72/14 0.78s } 10. e4 { +2.60/16 0.68s } 10... Bg6 { -0.80/14 1.5s
} 11. d5 { +2.94/16 0.65s } 11... exd5 { -1.64/14 1.7s } 12. exd5 {
+3.02/15 0.58s } 12... Nb4 { -1.68/13 0.60s } 13. Ne5 { +2.71/14 0.43s }
13... Qf5 { -2.12/14 1.9s } 14. Qa4+ { +2.36/15 1.1s } 14... c6 { -0.88/14
1.3s } 15. Qxb4 { +3.06/17 0.77s } 15... Qxe5 { -1.32/12 0.26s } 16. d6 {
+3.72/18 0.49s } 16... Qxg5 { -1.12/12 0.24s } 17. d7+ { +3.96/17 0.83s }
17... Kxd7 { -3.40/16 1.5s } 18. Qxb7+ { +7.14/15 0.53s } 18... Ke6 {
-3.68/14 0.34s } 19. Rd1 { +6.44/16 0.50s } 19... Qxg2 { -3.76/12 0.51s }
20. Qd7+ { +9.66/19 0.66s } 20... Kf6 { -3.48/14 0.93s } 21. Qd6+ {
+10.24/17 0.34s } 21... Kf5 { -3.76/15 0.35s } 22. Bg4+ { +10.28/18 0.49s }
22... Kg5 { -1.04/14 0.45s } 23. Qd2+ { +10.70/18 0.49s } 23... Kh4 {
-8.52/14 1.4s } 24. Qf4 { +10.06/18 0.29s } 24... Qxh1+ { -8.76/11 0.12s }
25. Kd2 { +10.84/18 0.44s } 25... Rd8+ { -10.20/15 0.98s } 26. Kc1 {
+11.03/17 0.37s } 26... Rd4 { -10.20/11 0.22s } 27. Qg3+ { +9.87/18 0.40s }
27... Kg5 { -3.48/4 0.001s } 28. f4+ { +10.80/17 0.24s } 28... Rxf4 {
-8.40/14 0.67s } 29. Rxh1 { +11.01/18 0.29s } 29... h5 { -8.60/13 0.23s }
30. Bd1+ { +10.68/17 0.28s } 30... Kh6 { -8.16/12 0.12s } 31. Qxf4+ {
+10.11/18 0.47s } 31... Kh7 { -8.60/4 0s } 32. Bc2 { +9.82/18 0.29s } 32...
Kg8 { -8.20/13 0.20s } 33. Bxg6 { +10.15/16 0.23s } 33... Nxg6 { -8.00/12
0.19s } 34. Qc7 { +9.96/16 0.64s } 34... Be7 { -7.36/11 0.19s } 35. Re1 {
+10.22/16 0.62s } 35... Bg5+ { -7.91/12 0.77s } 36. Kc2 { +10.26/13 0.40s }
36... Kh7 { -8.32/11 0.41s } 37. Qxf7 { +10.70/14 0.26s } 37... Rf8 {
-8.32/11 0.15s } 38. Qxc4 { +10.68/14 0.19s } 38... Nh4 { -8.20/10 0.12s }
39. Rf1 { +10.88/15 0.23s } 39... Rxf1 { -8.40/9 0.059s } 40. Qxf1 {
+11.51/13 0.20s } 40... a5 { -8.72/10 0.13s } 41. Qa6 { +12.07/14 0.23s }
41... Nf5 { -10.08/12 0.59s } 42. Qxa5 { +12.54/16 0.19s } 42... g6 {
-10.04/10 0.082s } 43. Qa7+ { +12.86/14 0.24s } 43... Kh6 { -10.36/11 0.22s
} 44. Ne4 { +13.28/14 0.26s } 44... Bf4 { -10.00/11 0.11s } 45. Qc5 {
+13.05/15 0.22s } 45... Kg7 { -12.52/13 0.55s } 46. a4 { +14.20/15 0.43s }
46... Be3 { -11.08/10 0.21s } 47. Qe5+ { +14.44/13 0.16s } 47... Kh7 {
-12.88/13 0.41s } 48. a5 { +14.33/14 0.19s } 48... Bd4 { -14.35/11 0.41s }
49. Qc7+ { +15.28/13 0.14s } 49... Kh6 { -17.84/10 0.36s } 50. a6 {
+15.94/14 0.15s } 50... h4 { -17.96/9 0.050s } 51. Kd3 { +17.45/14 0.13s }
51... c5 { -30.87/10 0.32s } 52. a7 { +20.13/18 0.25s } 52... c4+ { -M18/15
0.24s } 53. Kxc4 { +22.34/18 0.31s } 53... Bxa7 { -M16/15 0.038s } 54. Qxa7
{ +23.44/18 0.14s } 54... Ng3 { -M14/15 0.036s } 55. Qe3+ { +M31/18 0.15s }
55... Kg7 { -M12/17 0.063s } 56. Nxg3 { +M25/20 0.13s } 56... hxg3 {
-17.04/8 0.040s } 57. Qxg3 { +M15/23 0.14s } 57... Kf7 { -M16/14 0.24s }
58. Kd5 { +M13/25 0.13s } 58... Kf6 { -M12/11 0.042s } 59. Kd6 { +M11/27
0.12s } 59... Kf7 { -M10/15 0.044s } 60. Qe5 { +M9/29 0.13s } 60... Kf8 {
-M8/17 0.014s } 61. Ke6 { +M7/33 0.12s } 61... Kg8 { -M6/15 0.002s } 62.
Qc7 { +M5/47 0.090s } 62... g5 { -M4/13 0.001s } 63. Kf6 { +M3/116 0.024s }
63... g4 { -M2/11 0s, White wins by adjudication } 1-0
[/pgn]

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Admin
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Admin


Posts : 2608
Join date : 2020-11-17
Location : Netherlands

Speculative Sacrifice Games Empty
PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyTue Feb 28, 2023 9:20 pm

Entertaining.

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http://rebel13.nl/
Mclane

Mclane


Posts : 3022
Join date : 2020-11-17
Age : 57
Location : United States of Europe, Germany, Ruhr area

Speculative Sacrifice Games Empty
PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyTue Feb 28, 2023 9:26 pm

Better then cinema

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http://www.thorstenczub.de
Mclane

Mclane


Posts : 3022
Join date : 2020-11-17
Age : 57
Location : United States of Europe, Germany, Ruhr area

Speculative Sacrifice Games Empty
PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyWed Mar 01, 2023 11:31 am

[pgn][Event "?"]
[Site "?"]
[Date "2023.03.01"]
[Round "84"]
[White "Stockfish_14"]
[Black "Chess-System-Tal-1.59"]
[Result "0-1"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]
[TimeControl "20+0.05"]
[Termination "adjudication"]
[PlyCount "209"]
[GameDuration "00"]
[GameEndTime "2023-03-01T00.687 W. Europe Standard Time"]
[GameStartTime "2023-03-01T00.733 W. Europe Standard Time"]

1. d4 { book } 1... d5 { book } 2. c4 { book } 2... c6 { book } 3. Nf3 {
book } 3... Nf6 { book } 4. e3 { book } 4... a6 { book } 5. Nc3 { book }
5... Bf5 { book } 6. Qb3 { book } 6... b5 { book } 7. c5 { book } 7... Nbd7
{ book } 8. a4 { book } 8... g6 { book } 9. Qa3 { +1.25/19 1.4s } 9... b4 {
-1.53/17 0.79s } 10. Qxb4 { +1.25/17 0.30s } 10... Rb8 { -0.88/19 1.0s }
11. Qa3 { +1.22/18 0.31s } 11... a5 { -0.51/17 0.75s } 12. Be2 { +1.31/17
0.30s } 12... Bg7 { -0.35/16 0.37s } 13. Na2 { +1.10/18 0.62s } 13... Ne4 {
-0.89/17 0.51s } 14. O-O { +0.99/18 0.53s } 14... O-O { -0.62/17 0.86s }
15. b4 { +0.85/19 0.83s } 15... Bg4 { -0.65/16 0.61s } 16. Re1 { +1.37/15
0.26s } 16... e5 { -0.60/14 0.51s } 17. Bb2 { +1.10/18 0.55s } 17... Bxf3 {
-1.17/15 1.1s } 18. Bxf3 { +1.29/15 0.28s } 18... f5 { -0.72/15 0.71s } 19.
b5 { +1.27/16 0.35s } 19... exd4 { -0.36/15 0.48s } 20. Bxd4 { +1.48/20
1.5s } 20... Ne5 { -0.57/14 0.55s } 21. Be2 { +1.33/17 0.28s } 21... f4 {
-0.51/16 0.70s } 22. exf4 { +1.36/15 0.23s } 22... Rxf4 { -0.56/14 0.45s }
23. Be3 { +1.04/18 0.70s } 23... Qh4 { +0.95/12 0.38s } 24. g3 { +2.64/15
0.22s } 24... Rg4 { +0.63/14 0.73s } 25. bxc6 { +2.58/18 0.57s } 25... Nxg3
{ +2.78/13 0.29s } 26. hxg3 { -0.85/23 2.1s } 26... Rxg3+ { +2.67/15 0.35s
} 27. fxg3 { -1.11/22 0.41s } 27... Qxg3+ { +1.88/14 0.27s } 28. Kh1 {
-1.18/21 0.19s } 28... Nf3 { +3.03/17 0.52s } 29. Bxf3 { -1.38/20 0.21s }
29... Qxf3+ { +2.90/17 0.49s } 30. Kg1 { -0.99/21 0.23s } 30... Be5 {
+2.23/18 0.30s } 31. Bf4 { -0.89/20 0.40s } 31... Bd4+ { +2.83/15 0.21s }
32. Be3 { -1.06/20 0.20s } 32... Be5 { 0.00/8 0.005s } 33. Bf4 { -0.97/20
0.26s } 33... Bd4+ { 0.00/4 0.006s } 34. Be3 { -1.10/21 0.36s } 34... Qg3+
{ +1.81/17 0.51s } 35. Kh1 { -1.07/20 0.19s } 35... Rb2 { +2.15/15 0.25s }
36. Qxb2 { -0.87/19 0.29s } 36... Bxb2 { +1.98/16 0.23s } 37. c7 { -0.84/18
0.19s } 37... Qh3+ { +1.63/14 0.21s } 38. Kg1 { -0.95/18 0.26s } 38... Be5
{ +2.59/16 0.48s } 39. Rad1 { -0.95/17 0.20s } 39... Bh2+ { +2.61/16 0.27s
} 40. Kf2 { -0.91/18 0.23s } 40... Bxc7 { +2.40/17 0.46s } 41. Rg1 {
-1.96/18 0.53s } 41... Qh4+ { +2.70/16 0.22s } 42. Kf3 { -1.91/18 0.32s }
42... Bh2 { +1.72/16 0.30s } 43. Rgf1 { -2.14/21 0.89s } 43... Qe4+ {
+1.53/17 0.26s } 44. Kf2 { -1.96/18 0.12s } 44... Be5 { +1.67/18 0.21s }
45. Nc1 { -2.05/17 0.15s } 45... d4 { +1.79/18 0.17s } 46. Bd2 { -2.25/18
0.17s } 46... Qg4 { +1.63/18 0.22s } 47. Rg1 { -2.21/17 0.22s } 47... Qf5+
{ +1.55/17 0.37s } 48. Ke2 { -1.87/18 0.16s } 48... Qe4+ { +3.00/13 0.14s }
49. Kf2 { -2.07/18 0.43s } 49... Qf5+ { 0.00/4 0.002s } 50. Ke2 { -2.18/19
0.27s } 50... Qe4+ { 0.00/4 0.002s } 51. Kf2 { -2.01/17 0.15s } 51... Bf6 {
+2.76/14 0.14s } 52. Rg3 { -1.76/15 0.13s } 52... Bh4 { +2.63/16 0.39s }
53. Rg1 { -1.75/15 0.18s } 53... h5 { +3.06/14 0.24s } 54. Ne2 { -1.77/14
0.13s } 54... Qf5+ { +2.80/12 0.24s } 55. Kg2 { -1.66/16 0.25s } 55... Bxg3
{ +2.45/15 0.15s } 56. Nxg3 { -1.76/14 0.18s } 56... Qc2 { +2.92/15 0.11s }
57. Nf1 { -1.68/15 0.17s } 57... Kf7 { +2.46/14 0.25s } 58. Kf2 { -1.45/14
0.14s } 58... Qf5+ { +2.14/13 0.19s } 59. Ke1 { -1.55/15 0.26s } 59... h4 {
+1.94/15 0.43s } 60. Rg2 { -1.51/14 0.13s } 60... Qxc5 { +2.00/14 0.17s }
61. Nh2 { -2.06/19 0.96s } 61... h3 { +3.30/12 0.17s } 62. Rg3 { -2.16/17
0.10s } 62... d3 { +1.27/13 0.22s } 63. Rxh3 { -2.25/18 0.16s } 63... Qe5+
{ +2.39/14 0.13s } 64. Be3 { -2.38/18 0.20s } 64... Qa1+ { +2.51/17 0.14s }
65. Kf2 { -3.08/18 0.35s } 65... Qb2+ { +2.47/17 0.17s } 66. Kg3 { -2.45/16
0.098s } 66... Qe2 { +2.83/18 0.11s } 67. Ng4 { -3.26/15 0.23s } 67... Qe1+
{ +3.13/15 0.14s } 68. Kf4 { -2.67/17 0.49s } 68... d2 { +3.42/13 0.082s }
69. Bxd2 { -2.24/15 0.043s } 69... Qxd2+ { +3.61/15 0.11s } 70. Re3 {
-3.12/15 0.16s } 70... Qd6+ { +3.69/16 0.17s } 71. Kg5 { -3.95/16 0.37s }
71... Qb4 { +3.64/18 0.087s } 72. Re2 { -2.62/11 0.087s } 72... Kg7 {
+3.97/15 0.17s } 73. Re6 { -3.87/13 0.062s } 73... Qd2+ { +4.38/14 0.16s }
74. Ne3 { -1.42/13 0.021s } 74... Qd4 { +5.23/15 0.090s } 75. Rxg6+ {
-3.35/11 0.059s } 75... Kf7 { +3.12/12 0.11s } 76. Ng4 { -3.01/11 0.019s }
76... Qxa4 { +3.25/14 0.19s } 77. Nh6+ { -3.45/11 0.051s } 77... Ke7 {
+3.49/13 0.14s } 78. Rf6 { -4.10/10 0.12s } 78... Qa2 { +3.74/13 0.14s }
79. Nf5+ { -4.74/10 0.064s } 79... Kd7 { +4.11/12 0.21s } 80. Ra6 {
-4.64/10 0.052s } 80... a4 { +4.43/12 0.077s } 81. Kf6 { -4.55/10 0.033s }
81... Qb2+ { +5.08/12 0.11s } 82. Kf7 { -4.73/12 0.068s } 82... a3 {
+5.46/12 0.12s } 83. Ra7+ { -4.64/10 0.014s } 83... Kc6 { +5.20/11 0.10s }
84. Ne7+ { -4.60/11 0.030s } 84... Kc5 { +5.82/12 0.10s } 85. Ra5+ {
-4.38/11 0.023s } 85... Kb6 { +6.79/12 0.082s } 86. Rxa3 { -2.96/12 0.050s
} 86... Qxa3 { +6.71/13 0.070s } 87. Ng6 { -2.72/12 0.050s } 87... Qf3+ {
+6.81/12 0.094s } 88. Ke6 { -2.66/11 0.027s } 88... Qe4+ { +7.10/16 0.098s
} 89. Kf6 { -3.83/15 0.14s } 89... Qc6+ { +6.90/16 0.091s } 90. Kf5 {
-3.54/12 0.038s } 90... Qd7+ { +6.94/16 0.080s } 91. Kf6 { -3.07/13 0.054s
} 91... Qd5 { +7.17/15 0.083s } 92. Nf4 { -3.12/14 0.065s } 92... Qd4+ {
+7.33/16 0.076s } 93. Kf5 { -2.80/13 0.016s } 93... Kc6 { +7.26/17 0.064s }
94. Nh5 { -5.34/15 0.085s } 94... Kd6 { +7.07/16 0.091s } 95. Nf4 {
-2.56/14 0.007s } 95... Qe5+ { +7.66/14 0.047s } 96. Kg4 { -5.52/15 0.017s
} 96... Qe4 { +7.68/16 0.061s } 97. Kg3 { -3.97/18 0.036s } 97... Qe3+ {
+8.61/16 0.074s } 98. Kg4 { -3.95/16 0.023s } 98... Ke5 { +10.08/16 0.042s
} 99. Ng2 { -M56/20 0.15s } 99... Qf2 { +12.17/16 0.078s } 100. Kh3 {
-M18/20 0.018s } 100... Qf3+ { +M19/19 0.034s } 101. Kh2 { -M16/27 0.012s }
101... Ke4 { +M15/29 0.030s } 102. Nh4 { -M14/30 0.015s } 102... Qg4 {
+M13/29 0.023s } 103. Ng2 { -M10/36 0.018s } 103... Kf3 { +M11/39 0.029s }
104. Ne1+ { -M8/66 0.021s } 104... Kf2 { +M9/42 0.029s } 105. Nd3+ {
-M6/245 0.019s, Black wins by adjudication } 0-1[/pgn]


What the AI says about the game:
Ja, natürlich! Ich werde gerne die Partie kommentieren. Es handelt sich um eine Partie zwischen dem Schachprogramm Stockfish 14 (Weiß) und dem Schachprogramm Chess-System-Tal-1.59 (Schwarz).

d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Nc3 Bf5 6. Qb3 b5 7. c5 Nbd7 8. a4 g6 9. Qa3 b4
Dies ist eine Variante der Slawischen Verteidigung. Schwarz versucht, mit seinem Bauern auf b4 Raum zu schaffen und seinen Springer auf d7 zu entwickeln. Weiß setzt Druck auf den schwarzen Bauern auf b4 mit der Dame auf a3.

Qxb4 Rb8 11. Qa3 a5 12. Be2 Bg7 13. Na2
Weiß entwickelt seinen Springer auf eine passive Position, um Platz für seinen König zu schaffen.

13...Ne4 14. O-O O-O 15. b4 Bg4 16. Re1 e5

Schwarz greift das Zentrum an und öffnet die Diagonale für seinen Läufer auf g7.

Bb2 Bxf3 18. Bxf3 f5
Schwarz öffnet die Diagonale für seinen Läufer auf b7 und greift das Zentrum an.

b5 exd4 20. Bxd4 Ne5
Schwarz attackiert den weißen Springer auf a2 und setzt Weiß unter Druck.

Be2 f4 22. exf4 Rxf4 23. Be3 Qh4
Schwarz setzt die Angriffe auf die weiße Stellung fort und droht mit einem Angriff auf den König.

g3 Rg4 25. bxc6 Nxg3
Schwarz opfert einen Springer, um den weißen König zu öffnen.

hxg3 Rxg3+ 27. fxg3 Qxg3+ 28. Kh1 Nf3
Schwarz droht mit Matt auf h2.

Bxf3 Qxf3+ 30. Kg1 Be5
Schwarz setzt den Angriff fort und droht mit Matt auf g3.

Bf4 Bd4+ 32. Be3 Be5
Schwarz wiederholt den Zug und fordert ein Remis.

Bf4
Weiß entscheidet sich, den Damentausch nicht zuzulassen.

33... Bd4+ 34. Be3 Qg3+ 35. Kh1 Qh3+ 36. Kg1 Qg3+ 37. Kh1 Qh4+ 38. Kg2 Qg4+ 39. Kh2 Be5+

Schwarz hat einen Bauern verloren, aber seine Angriffe auf den König haben genug Druck aufgebaut, um Weiß zum Aufgeben zu zwingen.

0-1

Insgesamt war es eine interessante Partie, in der Schwarz von Anfang an Druck auf Weiß ausübte und seinen Angriff bis zum Schluss fortsetzte. Weiß konnte dem Druck von Schwarz nicht standhalten und verlor schließlich die Partie.

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Mclane

Mclane


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PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyWed Mar 01, 2023 12:28 pm

Chris Whittington wrote:
you got to love it when black finally gets to castle ...

Here what the AI says about it:

Thorsten Czub
Can you comment on the following chess game please:
I'd be happy to help you analyze a chess game! However, I don't see any specific game attached to your question. If you could provide me with a game to analyze, I would be more than happy to give you my thoughts and insights.



Thorsten Czub
[Event "?"]
[Site "?"]
[Date "2023.02.28"]
[Round "77"]
[White "Chess-System-Tal-1.59"]
[Black "SlowChess_2.9"]
[Result "1-0"]
[ECO "D07"]
[Opening "QGD"]
[Variation "Chigorin defense"]
[TimeControl "20+0.05"]
[Termination "adjudication"]
[PlyCount "126"]
[GameDuration "00"]
[GameEndTime "2023-02-28T19.439 W. Europe Standard Time"]
[GameStartTime "2023-02-28T19.588 W. Europe Standard Time"]

1. d4 { book } 1... d5 { book } 2. c4 { book } 2... Nc6 { book } 3. Nf3 {
book } 3... Bg4 { book } 4. Nc3 { book } 4... e6 { book } 5. Bg5 { book }
5... Nge7 { book } 6. e3 { book } 6... Qd7 { book } 7. h3 { book } 7... Bf5
{ book } 8. Rc1 { book } 8... a6 { book } 9. Be2 { +1.77/16 0.81s } 9...
dxc4 { -0.72/14 0.78s } 10. e4 { +2.60/16 0.68s } 10... Bg6 { -0.80/14 1.5s
} 11. d5 { +2.94/16 0.65s } 11... exd5 { -1.64/14 1.7s } 12. exd5 {
+3.02/15 0.58s } 12... Nb4 { -1.68/13 0.60s } 13. Ne5 { +2.71/14 0.43s }
13... Qf5 { -2.12/14 1.9s } 14. Qa4+ { +2.36/15 1.1s } 14... c6 { -0.88/14
1.3s } 15. Qxb4 { +3.06/17 0.77s } 15... Qxe5 { -1.32/12 0.26s } 16. d6 {
+3.72/18 0.49s } 16... Qxg5 { -1.12/12 0.24s } 17. d7+ { +3.96/17 0.83s }
17... Kxd7 { -3.40/16 1.5s } 18. Qxb7+ { +7.14/15 0.53s } 18... Ke6 {
-3.68/14 0.34s } 19. Rd1 { +6.44/16 0.50s } 19... Qxg2 { -3.76/12 0.51s }
20. Qd7+ { +9.66/19 0.66s } 20... Kf6 { -3.48/14 0.93s } 21. Qd6+ {
+10.24/17 0.34s } 21... Kf5 { -3.76/15 0.35s } 22. Bg4+ { +10.28/18 0.49s }
22... Kg5 { -1.04/14 0.45s } 23. Qd2+ { +10.70/18 0.49s } 23... Kh4 {
-8.52/14 1.4s } 24. Qf4 { +10.06/18 0.29s } 24... Qxh1+ { -8.76/11 0.12s }
25. Kd2 { +10.84/18 0.44s } 25... Rd8+ { -10.20/15 0.98s } 26. Kc1 {
+11.03/17 0.37s } 26... Rd4 { -10.20/11 0.22s } 27. Qg3+ { +9.87/18 0.40s }
27... Kg5 { -3.48/4 0.001s } 28. f4+ { +10.80/17 0.24s } 28... Rxf4 {
-8.40/14 0.67s } 29. Rxh1 { +11.01/18 0.29s } 29... h5 { -8.60/13 0.23s }
30. Bd1+ { +10.68/17 0.28s } 30... Kh6 { -8.16/12 0.12s } 31. Qxf4+ {
+10.11/18 0.47s } 31... Kh7 { -8.60/4 0s } 32. Bc2 { +9.82/18 0.29s } 32...
Kg8 { -8.20/13 0.20s } 33. Bxg6 { +10.15/16 0.23s } 33... Nxg6 { -8.00/12
0.19s } 34. Qc7 { +9.96/16 0.64s } 34... Be7 { -7.36/11 0.19s } 35. Re1 {
+10.22/16 0.62s } 35... Bg5+ { -7.91/12 0.77s } 36. Kc2 { +10.26/13 0.40s }
36... Kh7 { -8.32/11 0.41s } 37. Qxf7 { +10.70/14 0.26s } 37... Rf8 {
-8.32/11 0.15s } 38. Qxc4 { +10.68/14 0.19s } 38... Nh4 { -8.20/10 0.12s }
39. Rf1 { +10.88/15 0.23s } 39... Rxf1 { -8.40/9 0.059s } 40. Qxf1 {
+11.51/13 0.20s } 40... a5 { -8.72/10 0.13s } 41. Qa6 { +12.07/14 0.23s }
41... Nf5 { -10.08/12 0.59s } 42. Qxa5 { +12.54/16 0.19s } 42... g6 {
-10.04/10 0.082s } 43. Qa7+ { +12.86/14 0.24s } 43... Kh6 { -10.36/11 0.22s
} 44. Ne4 { +13.28/14 0.26s } 44... Bf4 { -10.00/11 0.11s } 45. Qc5 {
+13.05/15 0.22s } 45... Kg7 { -12.52/13 0.55s } 46. a4 { +14.20/15 0.43s }
46... Be3 { -11.08/10 0.21s } 47. Qe5+ { +14.44/13 0.16s } 47... Kh7 {
-12.88/13 0.41s } 48. a5 { +14.33/14 0.19s } 48... Bd4 { -14.35/11 0.41s }
49. Qc7+ { +15.28/13 0.14s } 49... Kh6 { -17.84/10 0.36s } 50. a6 {
+15.94/14 0.15s } 50... h4 { -17.96/9 0.050s } 51. Kd3 { +17.45/14 0.13s }
51... c5 { -30.87/10 0.32s } 52. a7 { +20.13/18 0.25s } 52... c4+ { -M18/15
0.24s } 53. Kxc4 { +22.34/18 0.31s } 53... Bxa7 { -M16/15 0.038s } 54. Qxa7
{ +23.44/18 0.14s } 54... Ng3 { -M14/15 0.036s } 55. Qe3+ { +M31/18 0.15s }
55... Kg7 { -M12/17 0.063s } 56. Nxg3 { +M25/20 0.13s } 56... hxg3 {
-17.04/8 0.040s } 57. Qxg3 { +M15/23 0.14s } 57... Kf7 { -M16/14 0.24s }
58. Kd5 { +M13/25 0.13s } 58... Kf6 { -M12/11 0.042s } 59. Kd6 { +M11/27
0.12s } 59... Kf7 { -M10/15 0.044s } 60. Qe5 { +M9/29 0.13s } 60... Kf8 {
-M8/17 0.014s } 61. Ke6 { +M7/33 0.12s } 61... Kg8 { -M6/15 0.002s } 62.
Qc7 { +M5/47 0.090s } 62... g5 { -M4/13 0.001s } 63. Kf6 { +M3/116 0.024s }
63... g4 { -M2/11 0s, White wins by adjudication } 1-0
The game you provided is a chess game played between Chess-System-Tal-1.59 (playing as White) and SlowChess_2.9 (playing as Black) using the Chigorin Defense variation of the Queen's Gambit Declined opening. Here's a move-by-move analysis of the game:

d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. Nc3 e6 5. Bg5 Nge7 6. e3 Qd7 7. h3 Bf5 8. Rc1 a6: The opening phase of the game is typical of the Chigorin Defense variation, with Black aiming to challenge White's central pawn structure with the moves Nc6 and e6. White develops their pieces harmoniously, with moves such as Nf3, Bg5, and Rc1. Black puts their bishop on f5, which can be a target for White's pawn push h3, but the bishop can also put pressure on White's central pawns.
Be2: This move is a new move compared to existing games in the chess database, and it develops the bishop to a good square, eyeing the f7 square.
9... dxc4: Black captures White's pawn, but this also opens up lines for White's pieces to attack.

e4: White attacks Black's bishop, which has to move, as it is pinned by the knight on c6. White aims to gain space in the center and create weaknesses in Black's pawn structure.
10... Bg6: Black retreats the bishop to g6, which looks natural but weakens the king's position.

d5: White advances their central pawn, which creates a strong outpost for their pieces on d5, and opens up lines of attack on Black's position.
11... exd5: Black captures White's pawn, but this also opens up lines for White's pieces to attack.

exd5: White recaptures with the pawn, which maintains control over the center and creates a strong passed pawn on d5.
12... Nb4: Black attacks White's queen, which has to move, but this also puts the knight in a vulnerable position.

Ne5: White attacks Black's queen and knight simultaneously, forcing Black to move their queen to a less active square.
13... Qf5: Black defends their knight and puts pressure on White's pawn on f2.

Qa4+: White checks Black's king, forcing it to move.
14... c6: Black blocks the check and attacks White's queen.

Qxb4: White sacrifices their queen, but this leads to a winning position. The queen can't be captured immediately due to the threat of a discovered check by White's bishop.
15... Qxe5: Black captures White's queen, but this also opens up lines for White's pieces to attack.

d6: White attacks Black's king and knight simultaneously, forcing Black's knight to move.
16... Qxg5: Black captures White's pawn, but this also opens up lines for White's pieces to attack.

d7+: White checks Black's king, forcing it to move.
17... Kxd7: Black captures White's pawn, but this leads to a hopeless position. If Black refuses the queen sacrifice and moves their king to a safer square, then White can simply recapture their queen and have a winning position.

Qxb7+ Ke6: Black moves their king to a less vulnerable square, but this doesn't save the game.
Rd1: White develops their rook and puts pressure on Black



Thorsten Czub
And ?
It appears that White (Chess-System-Tal-1.59) won the game against Black (SlowChess_2.9) with a score of 1-0, as indicated by the game termination tag. The game followed the Chigorin defense variation of the Queen's Gambit Declined opening. White played aggressively with moves such as d5 and d6, sacrificing material in order to create threats against Black's king. Eventually, Black made some mistakes that allowed White to capitalize and gain a decisive advantage, ultimately leading to victory.



Thorsten Czub
Would you say chess system tal played interesting?
Yes, the chess games played by the legendary chess player Mikhail Tal were often very interesting and full of creativity. Tal was known for his aggressive and imaginative playing style, and he was able to create many brilliant combinations and sacrifices that were both entertaining to watch and effective on the chessboard. Even when he was losing, Tal never gave up and always looked for ways to turn the game around with his tactical skills. Overall, Tal's games are a great source of inspiration for chess players looking to improve their own creativity and attacking skills.



Thorsten Czub
But this game was not played by a human but a chess program
Ah, I see. I apologize for the confusion earlier.

In that case, the game played by the chess program could still be considered interesting from a technical perspective. The fact that a computer program was able to play at such a high level and make surprising moves could be seen as impressive. Additionally, analyzing the game and understanding why the computer made certain moves could provide valuable insights into chess strategy and tactics.

However, it's worth noting that some people may not find watching a computer program play chess as engaging as watching humans play, as there is a certain level of unpredictability and drama that can come from watching human players compete. Ultimately, whether or not someone finds the game played by the chess program interesting is a matter of personal preference.



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Henk




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PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyWed Mar 01, 2023 4:11 pm

Maybe add a virtual robotic chess player which shows dramatic emotion on its face.

I agree still matter of personal preference. I personally like watching calm strategic play better than tactical violence.
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PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptyWed Mar 01, 2023 10:43 pm

Are there interesting games with longer time control ?
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PostSubject: Re: Speculative Sacrifice Games   Speculative Sacrifice Games EmptySat Mar 04, 2023 9:54 am

Chris Whittington wrote:
sac sac sac, are they tactically sound or just speculations that work?

[pgn]
[Event "?"]
[Site "?"]
[Date "2023.02.28"]
[Round "65"]
[White "Chess-System-Tal-1.59"]
[Black "Berserk_10"]
[Result "1-0"]
[ECO "B32"]
[Opening "Sicilian defense"]
[TimeControl "20+0.05"]
[Termination "adjudication"]
[PlyCount "72"]
[GameDuration "00"]
[GameEndTime "2023-02-28T18.078 W. Europe Standard Time"]
[GameStartTime "2023-02-28T18.327 W. Europe Standard Time"]

1. e4 { book } 1... c5 { book } 2. Nf3 { book } 2... Nc6 { book } 3. d4 {
book } 3... cxd4 { book } 4. Nxd4 { book } 4... e6 { book } 5. Nc3 { book }
5... d6 { book } 6. Be3 { book } 6... Nf6 { book } 7. f4 { book } 7... Be7
{ book } 8. Qf3 { book } 8... O-O { book } 9. O-O-O { +1.27/16 1.0s } 9...
Qc7 { -0.35/17 0.66s } 10. Rg1 { +0.88/13 0.70s } 10... Nxd4 { -0.14/14
0.32s } 11. Rxd4 { +0.44/15 0.65s } 11... Bd7 { 0.00/15 0.28s } 12. Bd3 {
+1.07/15 0.81s } 12... e5 { 0.00/16 0.28s } 13. Rb4 { +1.16/15 1.4s } 13...
Bg4 { -0.30/19 4.1s } 14. Qg3 { +0.89/16 0.83s } 14... Bd7 { -0.38/19 1.2s
} 15. Qf3 { 0.00/4 0.002s } 15... Bg4 { -0.35/18 0.37s } 16. Qg3 { 0.00/4
0.001s } 16... Bd7 { -0.49/18 0.34s } 17. f5 { +1.51/14 0.63s } 17... Rfc8
{ -0.34/19 1.1s } 18. Nd5 { +0.97/13 0.72s } 18... Nxd5 { -0.23/16 0.24s }
19. exd5 { +1.26/15 0.68s } 19... Bf6 { -0.46/18 0.73s } 20. Kb1 { +1.20/15
0.56s } 20... b5 { -0.17/17 0.44s } 21. Rg4 { +1.03/13 0.35s } 21... Kh8 {
-1.00/16 0.55s } 22. Qh3 { +2.21/14 0.54s } 22... Kg8 { -1.29/18 1.5s } 23.
Qg3 { 0.00/4 0.002s } 23... Kh8 { -1.07/18 0.66s } 24. Qh3 { 0.00/4 0.003s
} 24... Kg8 { -0.84/17 0.35s } 25. Bh6 { +3.96/14 0.47s } 25... Kf8 {
-2.17/17 0.88s } 26. Rxg7 { +4.19/17 0.72s } 26... Bxg7 { -0.86/18 0.12s }
27. Bxg7+ { +16.00/14 0.36s } 27... Kxg7 { -1.12/20 0.31s } 28. f6+ {
+M21/36 0.26s } 28... Kxf6 { -0.99/20 0.20s } 29. Rf1+ { +M19/39 0.24s }
29... Ke7 { -1.03/18 0.10s } 30. Rxf7+ { +M17/40 0.28s } 30... Kxf7 {
-M16/39 0.45s } 31. Qxh7+ { +M15/45 0.23s } 31... Kf8 { -M14/39 0.11s } 32.
Qh6+ { +M13/51 0.27s } 32... Kf7 { -M12/42 0.093s } 33. Bg6+ { +M11/53
0.24s } 33... Kf6 { -M10/45 0.080s } 34. Bh7+ { +M9/55 0.23s } 34... Kf7 {
-M8/54 0.071s } 35. Qg6+ { +M7/71 0.21s } 35... Ke7 { -M6/77 0.36s } 36.
Qg7+ { +M5/88 0.14s } 36... Kd8 { -M4/127 0.13s, White wins by adjudication
} 1-0

[/pgn]


That was a brilliant sequence of sacrifices! Cool

It seems to me that for a sacrifice to have a good chance of working, you need to have some knowledge that your opponent doesn't have - otherwise positions with opportunities for effective sacrifices just won't be offered to you.

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