The Doomsday of Stockfish DD

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Dr.Wael Deeb
Posts: 9773
Joined: Wed Mar 08, 2006 8:44 pm
Location: Amman,Jordan

Re: The Doomsday of Stockfish DD

Post by Dr.Wael Deeb »

mohzus wrote:"Sorry" to get back to this, but I think now I understand why SF plays "crazy random moves" when its time ran up. It's not a bug but a feature.
in search.cpp one reads

Code: Select all

 // Stop the search if most of the available time has been used. We
            // probably don't have enough time to search the first move at the
            // next iteration anyway.
            if (Time::now() - SearchTime > (TimeMgr.available_time() * 62) / 100)
                stop = true;
So basically, the 2 games I've won against SF were not true wins and I won because it ran out of time (unfairly, since I would have lost on time much sooner than it!).
I have yet to draw against SF at full strength; win is for now out of reach for me.
It's better to do it my way:

I play the chess engines at full strength with time control 90 minutes +30 seconds increment while giving myself infinite time for thinking and the possibility to delay the game if I'm tired,got to go to sleep,etc.

And that's the only advantage I use against these silicon monsters....

Try it and you'll love it regards,
Dr.D
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….
overlord
Posts: 198
Joined: Sun Jun 03, 2012 6:46 pm
Location: Trinec, Czech Republic

Re: The Doomsday of Stockfish DD

Post by overlord »

Another kind of positions where should be Stockfish evaluation improved. When rook ending occured (deadly drawish, Stockfish´s evaluation was -1.71 for a long time).

[pgn][Event "Blitz 5m"]
[Site "?"]
[Date "2013.12.30"]
[Round "?"]
[White "Kvicala, Miroslav"]
[Black "Stockfish DD"]
[Result "1/2-1/2"]
[ECO "C68"]
[PlyCount "265"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Nf6
8. f3 Bd7 9. Be3 O-O-O 10. Nc3 Bd6 11. O-O-O Rhe8 12. Bg5 b6 13. Bxf6 gxf6 14.
g4 h5 15. h3 Bf4+ 16. Kb1 Be5 17. Nf5 Bxc3 18. bxc3 Bxf5 19. exf5 Rxd1+ 20.
Rxd1 Re2 21. f4 Re3 22. Rd3 Re1+ 23. Kb2 hxg4 24. hxg4 Rg1 25. Rh3 Rxg4 26. Rh6
Rxf4 27. Rxf6 Kd7 28. Rxf7+ Kd6 29. f6 c5 30. Rf8 Ke6 31. Rc8 Kd7 32. Rf8 a5
33. f7 Rf6 34. c4 Ke6 35. Re8+ Kxf7 36. Re4 Rf3 37. a4 Rh3 38. Re1 Rh4 39. Kb3
Rh6 40. Re3 Re6 41. Rd3 Ke7 42. Rd1 Re3+ 43. Kb2 Re4 44. Kb3 Rg4 45. Rd3 Ke6
46. Rd1 Rh4 47. Rd3 Re4 48. Rd1 Rg4 49. Rd3 Rf4 50. Rd1 Rf3+ 51. Kb2 Rf6 52.
Kb3 Rh6 53. Rd3 Ke7 54. Rd1 Rh7 55. Rd3 Rh1 56. Kb2 Re1 57. Rd2 Re4 58. Kb3 Rd4
59. Rh2 Rf4 60. Rd2 Rf3+ 61. Kb2 Rg3 62. Rd1 Rg2 63. Kb3 Rf2 64. Rd3 Rh2 65.
Rd1 Re2 66. Rd3 Ke6 67. Rd1 Re4 68. Rd3 Re1 69. Kb2 Re2 70. Rd1 Rh2 71. Rd3 Ke7
72. Rd1 Re2 73. Rd3 Re4 74. Kb3 Re1 75. Kb2 Rh1 76. Rd2 Rf1 77. Rd3 Ke6 78. Rd2
Rf6 79. Rd1 Ke7 80. Rd3 Rf7 81. Rd1 Rh7 82. Rd3 Rh4 83. Kb3 c6 84. Rd1 Rd4 85.
Rh1 Kd8 86. Rh7 Rd7 87. Rh6 Kc7 88. Rg6 Rh7 89. Kb2 Re7 90. Kb3 Rd7 91. Kb2 Kb7
92. Kb3 Re7 93. Kb2 Rf7 94. Kb3 Kc7 95. Kb2 Kd7 96. Kb3 Re7 97. Kb2 Re8 98. Rh6
Re4 99. Kb3 Re7 100. Kb2 Kc7 101. Kb3 Rf7 102. Kb2 Kb7 103. Kb3 Rc7 104. Kb2
Rd7 105. Kb3 Rd1 106. Kb2 Kc7 107. Rg6 Rd6 108. Rg7+ Kb8 109. Rh7 Re6 110. Rg7
Rh6 111. Rf7 Rh4 112. Kb3 Rh3+ 113. Kb2 Rh6 114. Rg7 Rh8 115. Kb3 Re8 116. Rh7
Rd8 117. Rg7 Rf8 118. Rh7 Rf1 119. Kb2 Rf6 120. Rg7 Rf4 121. Kb3 Rf3+ 122. Kb2
Rf6 123. Kb3 Rf1 124. Kb2 Rd1 125. Rh7 Kc8 126. Rg7 Re1 127. Rh7 Rd1 128. Rg7
Re1 129. Rh7 Re3 130. Rg7 Re8 131. Rh7 Rd8 132. Rg7 Rf8 133. Rh7 1/2-1/2[/pgn]
Lyudmil Tsvetkov
Posts: 6052
Joined: Tue Jun 12, 2012 12:41 pm

Re: The Doomsday of Stockfish DD

Post by Lyudmil Tsvetkov »

overlord wrote:Another kind of positions where should be Stockfish evaluation improved. When rook ending occured (deadly drawish, Stockfish´s evaluation was -1.71 for a long time).

[pgn][Event "Blitz 5m"]
[Site "?"]
[Date "2013.12.30"]
[Round "?"]
[White "Kvicala, Miroslav"]
[Black "Stockfish DD"]
[Result "1/2-1/2"]
[ECO "C68"]
[PlyCount "265"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Nf6
8. f3 Bd7 9. Be3 O-O-O 10. Nc3 Bd6 11. O-O-O Rhe8 12. Bg5 b6 13. Bxf6 gxf6 14.
g4 h5 15. h3 Bf4+ 16. Kb1 Be5 17. Nf5 Bxc3 18. bxc3 Bxf5 19. exf5 Rxd1+ 20.
Rxd1 Re2 21. f4 Re3 22. Rd3 Re1+ 23. Kb2 hxg4 24. hxg4 Rg1 25. Rh3 Rxg4 26. Rh6
Rxf4 27. Rxf6 Kd7 28. Rxf7+ Kd6 29. f6 c5 30. Rf8 Ke6 31. Rc8 Kd7 32. Rf8 a5
33. f7 Rf6 34. c4 Ke6 35. Re8+ Kxf7 36. Re4 Rf3 37. a4 Rh3 38. Re1 Rh4 39. Kb3
Rh6 40. Re3 Re6 41. Rd3 Ke7 42. Rd1 Re3+ 43. Kb2 Re4 44. Kb3 Rg4 45. Rd3 Ke6
46. Rd1 Rh4 47. Rd3 Re4 48. Rd1 Rg4 49. Rd3 Rf4 50. Rd1 Rf3+ 51. Kb2 Rf6 52.
Kb3 Rh6 53. Rd3 Ke7 54. Rd1 Rh7 55. Rd3 Rh1 56. Kb2 Re1 57. Rd2 Re4 58. Kb3 Rd4
59. Rh2 Rf4 60. Rd2 Rf3+ 61. Kb2 Rg3 62. Rd1 Rg2 63. Kb3 Rf2 64. Rd3 Rh2 65.
Rd1 Re2 66. Rd3 Ke6 67. Rd1 Re4 68. Rd3 Re1 69. Kb2 Re2 70. Rd1 Rh2 71. Rd3 Ke7
72. Rd1 Re2 73. Rd3 Re4 74. Kb3 Re1 75. Kb2 Rh1 76. Rd2 Rf1 77. Rd3 Ke6 78. Rd2
Rf6 79. Rd1 Ke7 80. Rd3 Rf7 81. Rd1 Rh7 82. Rd3 Rh4 83. Kb3 c6 84. Rd1 Rd4 85.
Rh1 Kd8 86. Rh7 Rd7 87. Rh6 Kc7 88. Rg6 Rh7 89. Kb2 Re7 90. Kb3 Rd7 91. Kb2 Kb7
92. Kb3 Re7 93. Kb2 Rf7 94. Kb3 Kc7 95. Kb2 Kd7 96. Kb3 Re7 97. Kb2 Re8 98. Rh6
Re4 99. Kb3 Re7 100. Kb2 Kc7 101. Kb3 Rf7 102. Kb2 Kb7 103. Kb3 Rc7 104. Kb2
Rd7 105. Kb3 Rd1 106. Kb2 Kc7 107. Rg6 Rd6 108. Rg7+ Kb8 109. Rh7 Re6 110. Rg7
Rh6 111. Rf7 Rh4 112. Kb3 Rh3+ 113. Kb2 Rh6 114. Rg7 Rh8 115. Kb3 Re8 116. Rh7
Rd8 117. Rg7 Rf8 118. Rh7 Rf1 119. Kb2 Rf6 120. Rg7 Rf4 121. Kb3 Rf3+ 122. Kb2
Rf6 123. Kb3 Rf1 124. Kb2 Rd1 125. Rh7 Kc8 126. Rg7 Re1 127. Rh7 Rd1 128. Rg7
Re1 129. Rh7 Re3 130. Rg7 Re8 131. Rh7 Rd8 132. Rg7 Rf8 133. Rh7 1/2-1/2[/pgn]
I am not 100% sure this is a straightforward draw, most probably it is, but on move 42. Stockfish should have played Rd6, followed by transferring the king to a6, then c7-c6 and b6-b5. Possibly still a draw, but this was the way to proceed. Of course, you missed your chances too.
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Dr.Wael Deeb
Posts: 9773
Joined: Wed Mar 08, 2006 8:44 pm
Location: Amman,Jordan

Re: The Doomsday of Stockfish DD

Post by Dr.Wael Deeb »

Lyudmil Tsvetkov wrote:
overlord wrote:Another kind of positions where should be Stockfish evaluation improved. When rook ending occured (deadly drawish, Stockfish´s evaluation was -1.71 for a long time).

[pgn][Event "Blitz 5m"]
[Site "?"]
[Date "2013.12.30"]
[Round "?"]
[White "Kvicala, Miroslav"]
[Black "Stockfish DD"]
[Result "1/2-1/2"]
[ECO "C68"]
[PlyCount "265"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Nf6
8. f3 Bd7 9. Be3 O-O-O 10. Nc3 Bd6 11. O-O-O Rhe8 12. Bg5 b6 13. Bxf6 gxf6 14.
g4 h5 15. h3 Bf4+ 16. Kb1 Be5 17. Nf5 Bxc3 18. bxc3 Bxf5 19. exf5 Rxd1+ 20.
Rxd1 Re2 21. f4 Re3 22. Rd3 Re1+ 23. Kb2 hxg4 24. hxg4 Rg1 25. Rh3 Rxg4 26. Rh6
Rxf4 27. Rxf6 Kd7 28. Rxf7+ Kd6 29. f6 c5 30. Rf8 Ke6 31. Rc8 Kd7 32. Rf8 a5
33. f7 Rf6 34. c4 Ke6 35. Re8+ Kxf7 36. Re4 Rf3 37. a4 Rh3 38. Re1 Rh4 39. Kb3
Rh6 40. Re3 Re6 41. Rd3 Ke7 42. Rd1 Re3+ 43. Kb2 Re4 44. Kb3 Rg4 45. Rd3 Ke6
46. Rd1 Rh4 47. Rd3 Re4 48. Rd1 Rg4 49. Rd3 Rf4 50. Rd1 Rf3+ 51. Kb2 Rf6 52.
Kb3 Rh6 53. Rd3 Ke7 54. Rd1 Rh7 55. Rd3 Rh1 56. Kb2 Re1 57. Rd2 Re4 58. Kb3 Rd4
59. Rh2 Rf4 60. Rd2 Rf3+ 61. Kb2 Rg3 62. Rd1 Rg2 63. Kb3 Rf2 64. Rd3 Rh2 65.
Rd1 Re2 66. Rd3 Ke6 67. Rd1 Re4 68. Rd3 Re1 69. Kb2 Re2 70. Rd1 Rh2 71. Rd3 Ke7
72. Rd1 Re2 73. Rd3 Re4 74. Kb3 Re1 75. Kb2 Rh1 76. Rd2 Rf1 77. Rd3 Ke6 78. Rd2
Rf6 79. Rd1 Ke7 80. Rd3 Rf7 81. Rd1 Rh7 82. Rd3 Rh4 83. Kb3 c6 84. Rd1 Rd4 85.
Rh1 Kd8 86. Rh7 Rd7 87. Rh6 Kc7 88. Rg6 Rh7 89. Kb2 Re7 90. Kb3 Rd7 91. Kb2 Kb7
92. Kb3 Re7 93. Kb2 Rf7 94. Kb3 Kc7 95. Kb2 Kd7 96. Kb3 Re7 97. Kb2 Re8 98. Rh6
Re4 99. Kb3 Re7 100. Kb2 Kc7 101. Kb3 Rf7 102. Kb2 Kb7 103. Kb3 Rc7 104. Kb2
Rd7 105. Kb3 Rd1 106. Kb2 Kc7 107. Rg6 Rd6 108. Rg7+ Kb8 109. Rh7 Re6 110. Rg7
Rh6 111. Rf7 Rh4 112. Kb3 Rh3+ 113. Kb2 Rh6 114. Rg7 Rh8 115. Kb3 Re8 116. Rh7
Rd8 117. Rg7 Rf8 118. Rh7 Rf1 119. Kb2 Rf6 120. Rg7 Rf4 121. Kb3 Rf3+ 122. Kb2
Rf6 123. Kb3 Rf1 124. Kb2 Rd1 125. Rh7 Kc8 126. Rg7 Re1 127. Rh7 Rd1 128. Rg7
Re1 129. Rh7 Re3 130. Rg7 Re8 131. Rh7 Rd8 132. Rg7 Rf8 133. Rh7 1/2-1/2[/pgn]
I am not 100% sure this is a straightforward draw, most probably it is, but on move 42. Stockfish should have played Rd6, followed by transferring the king to a6, then c7-c6 and b6-b5. Possibly still a draw, but this was the way to proceed. Of course, you missed your chances too.
He was lucky not to lose....
Dr.D
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….
ouachita
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Full name: Bobby Johnson

Re: The Doomsday of Stockfish DD

Post by ouachita »

Dr.Wael Deeb wrote:It's better to do it my way:Dr.D
no, my way: The engine is set to engine v human - it plays blitz - I play when I'm ready. :D
SIM, PhD, MBA, PE
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Dr.Wael Deeb
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Re: The Doomsday of Stockfish DD

Post by Dr.Wael Deeb »

ouachita wrote:
Dr.Wael Deeb wrote:It's better to do it my way:Dr.D
no, my way: The engine is set to engine v human - it plays blitz - I play when I'm ready. :D
A modification of my method :D

:wink:
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….
ouachita
Posts: 454
Joined: Tue Jan 15, 2013 4:33 pm
Location: Ritz-Carlton, NYC
Full name: Bobby Johnson

Re: The Doomsday of Stockfish DD

Post by ouachita »

Dr.Wael Deeb wrote:
ouachita wrote:
Dr.Wael Deeb wrote:It's better to do it my way:Dr.D
no, my way: The engine is set to engine v human - it plays blitz - I play when I'm ready. :D
A modification of my method :D

:wink:
true. :lol:
SIM, PhD, MBA, PE
overlord
Posts: 198
Joined: Sun Jun 03, 2012 6:46 pm
Location: Trinec, Czech Republic

Re: The Doomsday of Stockfish DD

Post by overlord »

Yesterday when I was watching stupid TV shows before new year occured, I played one of my best games. Stockfish DD was destroyed in Carlsen style :) I am very proud of this game :)

[pgn][Event "Blitz 5m"]
[Site "?"]
[Date "2013.12.31"]
[Round "?"]
[White "Kvicala, Miroslav"]
[Black "Stockfish DD"]
[Result "1-0"]
[PlyCount "55"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Be7 7. Bd3 Nc6 8. Ne2
Bh4+ 9. g3 Be7 10. O-O O-O 11. Nf3 Rb8 12. g4 Nb6 13. Ng3 Bd7 14. g5 cxd4 15.
cxd4 Nb4 16. Bb1 Bb5 17. a3 Bxf1 18. Qxf1 Nc6 19. Qh3 g6 20. Nh5 Qc7 21. Nf6+
Bxf6 22. exf6 Nxd4 23. Qh6 Qxc1+ 24. Kg2 Qxb2+ 25. Kh3 Nf5 26. Bxf5 Qg2+ 27.
Kxg2 d4 28. Qg7# 1-0[/pgn]
Lyudmil Tsvetkov
Posts: 6052
Joined: Tue Jun 12, 2012 12:41 pm

Re: The Doomsday of Stockfish DD

Post by Lyudmil Tsvetkov »

overlord wrote:Yesterday when I was watching stupid TV shows before new year occured, I played one of my best games. Stockfish DD was destroyed in Carlsen style :) I am very proud of this game :)

[pgn][Event "Blitz 5m"]
[Site "?"]
[Date "2013.12.31"]
[Round "?"]
[White "Kvicala, Miroslav"]
[Black "Stockfish DD"]
[Result "1-0"]
[PlyCount "55"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Be7 7. Bd3 Nc6 8. Ne2
Bh4+ 9. g3 Be7 10. O-O O-O 11. Nf3 Rb8 12. g4 Nb6 13. Ng3 Bd7 14. g5 cxd4 15.
cxd4 Nb4 16. Bb1 Bb5 17. a3 Bxf1 18. Qxf1 Nc6 19. Qh3 g6 20. Nh5 Qc7 21. Nf6+
Bxf6 22. exf6 Nxd4 23. Qh6 Qxc1+ 24. Kg2 Qxb2+ 25. Kh3 Nf5 26. Bxf5 Qg2+ 27.
Kxg2 d4 28. Qg7# 1-0[/pgn]
Congratulations Miroslav.

Stockfish must have watched the show too, or otherwise it would have played 22...Kh8 or 22...h5. :)
overlord
Posts: 198
Joined: Sun Jun 03, 2012 6:46 pm
Location: Trinec, Czech Republic

Re: The Doomsday of Stockfish DD

Post by overlord »

When I checked the game accurate continuation was 22.gxf6! Anyway, Stockfish sometimes misses these kind of moves. I have to mention that it was played on my smartphone, not on desktop. 17.a3!! is absolutly out of engines position dynamics understanding :) Such beautiful moves can be played only by human beings :)