Sometimes you just get tired of too many Stockfish derivatives

[dorsz]

...except the new and shiny Sawfish 1.0.
Sawfish - Stockfish derivative made for fun, often sharp and sometimes crazy. The engine is suitable for playing and analyzing, it supports Polyglot books.

WARNING
Sharp saw

[moonstonelight]

Bro's a marketing genius... But didn't needed to, we always have room for your engines, Dorsz. I will be testing this.

How would you compare this engine with your previous works Swordfish and Blue Marlin? Is it in between, or crazier, or calmer...?

[ZamChess]

Thank you very much Dorsz !

Here are two .jpg images with Sawfish, which you can use as an icon:
Sawfish 1
https://ibb.co/6FYnz9H
Sawfish 2
https://ibb.co/H2cT4f2

All the best.

PS: I like the first one more.

[Homayoun]

Many thanks Dorsz. A busy evening will be for me. I should test fire9.2, Raid3, and now Sawfish. I should see the changes in these projects.
Greetings

[dorsz]

Thanks everyone for your interest. I'm waiting for your tests and opinions.

Bro's a marketing genius... But didn't needed to, we always have room for your engines, Dorsz. I will be testing this.

How would you compare this engine with your previous works Swordfish and Blue Marlin? Is it in between, or crazier, or calmer...?

The strength is very close to Swordfish 15.5. The way of playing is somewhere in between Blue Marlin 15.7 and Swordfish 15.5. Sawfish partially replaces the discontinued Blue Marlin.

Thank you very much Dorsz !

Here are two .jpg images with Sawfish, which you can use as an icon:
Sawfish 1
https://ibb.co/6FYnz9H
Sawfish 2
https://ibb.co/H2cT4f2

All the best.

PS: I like the first one more.

Check the archive with the engine. I think you did not look inside it.

[superbatil]

...except the new and shiny Sawfish 1.0.
Sawfish - Stockfish derivative made for fun, often sharp and sometimes crazy. The engine is suitable for playing and analyzing, it supports Polyglot books.

WARNING
Sharp saw

Code: Select all

time control: 5+1
rounds: 15
Score of      Sawfish  (2wins)  vs Stockfish-16_231112  (5 wins)    Draw (8)

"Pgn"

Code: Select all

[Round "1.1"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "1/2-1/2"]
[Termination "50 moves rule"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "312"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 Nge7 7. Na3 cxd4 8. cxd4 Nf5
9. Nc2 f6 10. Bd3 fxe5 11. dxe5 Nh4 12. O-O Nxf3+ 13. Qxf3 Nxe5 14. Qh5+ Nf7 15. Re1 Be7 16. Bd2 g6
17. Qe2 O-O 18. Ne3 Bc5 19. Ng4 e5 20. Nxe5 Nxe5 21. Qxe5 Bxf2+ 22. Kh1 Re8 23. Qxd5+ Be6 24. Qxd8 Raxd8
25. Re2 Rxd3 26. Rxf2 Red8 27. Ba5 b6 28. Bc3 Rd1+ 29. Rf1 Rxf1+ 30. Rxf1 Bxa2 31. Kg1 Rd7 32. h4 Rf7
33. Rxf7 Kxf7 34. Kf2 Ke6 35. g3 g5 36. Ke2 Kd5 37. Bf6 gxh4 38. gxh4 Kc4 39. Kd1 Bb1 40. Be5 Kb5
41. Bb8 Kc6 42. b4 Be4 43. Kd2 Bf3 44. Kc2 Bg2 45. Be5 Kb7 46. Kb3 h5 47. Ka2 Ka8 48. Bg7 Bf1
49. Bf8 Bh3 50. Kb1 Be6 51. Ka1 Bh3 52. Bg7 Kb7 53. Kb2 Ka8 54. Ka3 Kb8 55. Ba1 Kb7 56. Bg7 Be6
57. Bf8 Bh3 58. Ka2 Ka8 59. Kb1 Bc8 60. Bg7 Bf5+ 61. Ka1 Bc8 62. Kb1 Kb7 63. Ka1 Ka6 64. Kb1 Kb5
65. Bf8 Bf5+ 66. Kb2 Bh3 67. Kb3 Be6+ 68. Kb2 Bh3 69. Ka1 Ka6 70. Ka2 Bg4 71. Kb2 Bh3 72. Ka3 Kb7
73. Kb2 a6 74. Kc3 Bc8 75. Kd2 Ka7 76. Ke1 Bf5 77. Bg7 Bh3 78. Be5 Bf5 79. Bg7 Bh3 80. Kf2 Kb7
81. Bc3 Kc6 82. Kf3 Kd5 83. Ke2 Kc4 84. Be1 Kb3 85. Bd2 Kb2 86. Be1 Kc2 87. Ke3 Bg4 88. Bd2 Bh3
89. Be1 Bf1 90. Kf2 Bd3 91. Ke3 Bc4 92. Bd2 Kd1 93. Bc3 Bf1 94. Bd2 Be2 95. Bc3 Bc4 96. Bf6 Kc2
97. Bd8 Kc3 98. Bxb6 Kxb4 99. Kd2 a5 100. Kc2 a4 101. Bf2 Bb3+ 102. Kd3 Bd5 103. Kc2 a3 104. Be1+ Kc4
105. Kb1 Kd3 106. Ka1 a2 107. Bb4 Ke2 108. Ba3 Kf3 109. Bc1 Kg4 110. Bg5 Kf5 111. Bd8 Be6 112. Kb2 Kg6
113. Bg5 Bb3 114. Bd2 Bc4 115. Ka1 Bb3 116. Ba5 Kf7 117. Bd8 Ke8 118. Bf6 Kf7 119. Bg5 Kg6 120. Be7 Bc4
121. Ba3 Bb3 122. Bd6 Kf7 123. Bb4 Ke8 124. Bd2 Kd7 125. Bh6 Bc4 126. Kb2 Ke6 127. Bg5 Kf5 128. Bd2 Bd5
129. Bc1 Bb3 130. Ka1 Be6 131. Ba3 Kg4 132. Be7 Kf5 133. Kb2 Bd5 134. Ba3 Bc4 135. Be7 Ke6 136. Bg5 Kd7
137. Bd2 Ke8 138. Bc1 Kd7 139. Bd2 Bd5 140. Bg5 Bf7 141. Bc1 Bd5 142. Ka1 Ke6 143. Kb2 Bb3 144. Ka1 Bd5
145. Kb2 Kf5 146. Bg5 Kg4 147. Ka1 Bc4 148. Bd8 Bf7 149. Bg5 Kf5 150. Be7 Bb3 151. Kb2 Bf7 152. Ka1 Ke5
153. Bb4 Kf6 154. Be1 Kf5 155. Bd2 Kg6 156. Bc1 Bb3 1/2-1/2

[Round "1.2"]
[White "Stockfish-16_231112"]
[Black "Sawfish"]
[Result "1-0"]
[Termination "checkmate"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "137"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. g3 Bb7 7. Bg2 h5 8. O-O h4
9. Re1 Nc6 10. a4 b4 11. Nd5 Ne5 12. a5 Nf6 13. Bf4 Nfg4 14. h3 g5 15. hxg4 gxf4 16. gxf4 Ng6
17. g5 Bg7 18. Nf5 Kf8 19. Nxg7 Kxg7 20. Qd4+ e5 21. fxe5 Bxd5 22. e6+ Kg8 23. exd5 dxe6 24. Qe3 e5
25. d6 Rb8 26. Rad1 Rh5 27. Kh1 Rxg5 28. d7 Qf6 29. Qb6 Rxb6 30. d8=Q+ Kg7 31. Qxb6 Qf4 32. Qe3 h3
33. Be4 Qh4 34. Bxg6 Kxg6 35. Qe4+ Qxe4+ 36. Rxe4 Rg2 37. Rf1 f5 38. Rxe5 f4 39. Rd5 Kf6 40. Rh5 Rg7
41. c3 b3 42. Rxh3 Re7 43. Rh6+ Kg5 44. Rh2 Re2 45. f3 Re5 46. Ra1 Kf6 47. c4 Rc5 48. Rc1 Kg6
49. Rh4 Kg5 50. Rg4+ Kf5 51. Rh4 Kg5 52. Rh8 Kg6 53. Rh3 Kf6 54. Rh6+ Kf7 55. Rh4 Ke7 56. Re1+ Kf6
57. Rxf4+ Kg5 58. Rf8 Kh6 59. Rg1 Rh5+ 60. Kg2 Rxa5 61. Kf2 Rg5 62. Rxg5 Kxg5 63. c5 Kh6 64. c6 Kg6
65. c7 Kg7 66. c8=Q a5 67. Qf5 Kh6 68. Qf6+ Kh7 69. Rh8# 1-0

[Round "1.3"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "1-0"]
[Termination "checkmate"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "165"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Bd7 5. Nf3 Nc6 6. a3 c4 7. Be2 Nge7 8. a4 Qb6
9. Nbd2 Na5 10. h4 h6 11. g3 O-O-O 12. Kf1 Kb8 13. Qc2 Ka8 14. Bd1 Nec6 15. b3 cxb3 16. Nxb3 Be7
17. h5 Rc8 18. Nxa5 Nxa5 19. Kg2 a6 20. Bd2 Rc6 21. Be2 Nc4 22. Bc1 Qc7 23. Ra2 Qc8 24. Qd1 Qc7
25. Qc2 Ka7 26. Ne1 Na5 27. Bd2 Bb4 28. Bb5 axb5 29. axb5 Rxc3 30. b6+ Kxb6 31. Qb1 Nb3 32. Bxc3 Qxc3
33. Rc2 Nd2 34. Rxc3 Nxb1 35. Rb3 Na3 36. Rxb4+ Bb5 37. g4 Ra8 38. Rb3 Nc4 39. Nf3 Kc6 40. Rhb1 Ra5
41. g5 b6 42. gxh6 gxh6 43. Rc3 Ra2 44. Ne1 Rd2 45. Nf3 Ra2 46. Ne1 Rd2 47. Rd3 Rxd3 48. Nxd3 Ne3+
49. fxe3 Bxd3 50. Rc1+ Kb5 51. Kf2 Ka4 52. Ke1 b5 53. Kd2 Bf5 54. Rg1 b4 55. Rg7 Kb3 56. Rxf7 Ka3
57. Rxf5 exf5 58. e6 b3 59. e7 b2 60. e8=Q b1=Q 61. Qa8+ Kb2 62. Qb7+ Ka1 63. Qxb1+ Kxb1 64. Ke2 Kc2
65. Kf3 Kd3 66. Kf4 Ke2 67. Kxf5 Kxe3 68. Ke5 Kf3 69. Kxd5 Kg4 70. Ke5 Kxh5 71. Kf5 Kh4 72. d5 Kg3
73. d6 Kh4 74. Kf4 Kh5 75. d7 Kg6 76. Ke5 Kg5 77. d8=Q+ Kg4 78. Qd1+ Kg3 79. Ke4 Kg2 80. Qf3+ Kh2
81. Qf2+ Kh3 82. Kf3 h5 83. Qg3# 1-0

[Round "1.4"]
[White "Stockfish-16_231112"]
[Black "Sawfish"]
[Result "1-0"]
[Termination "checkmate"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "207"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. g3 Bb7 7. Bg2 h5 8. O-O h4
9. Re1 Nc6 10. Nd5 Nxd4 11. Qxd4 f6 12. e5 Bxd5 13. Bxd5 Rc8 14. Qd3 f5 15. Bf3 hxg3 16. hxg3 Nh6
17. a4 Bc5 18. Kg2 Nf7 19. axb5 axb5 20. Qxb5 Qb6 21. Qxb6 Bxb6 22. c3 Ke7 23. Rd1 Nxe5 24. Bg5+ Kf7
25. Be2 d5 26. Ra6 Bd8 27. Bf4 Bf6 28. Ra7+ Kg6 29. Ra6 Kf7 30. Ra7+ Kg6 31. Re1 d4 32. Ba6 Ra8
33. Rxa8 Rxa8 34. Bb5 Ng4 35. cxd4 Rh8 36. Rxe6 Kf7 37. Bc4 Rh2+ 38. Kf1 Rxf2+ 39. Ke1 Rc2 40. Rc6+ Ke7
41. b3 g5 42. Bd2 Rb2 43. Re6+ Kf7 44. Bc3 Rh2 45. Re2+ Kf8 46. Rxh2 Nxh2 47. Ke2 Ke7 48. Bd3 f4
49. gxf4 gxf4 50. Kf2 Bg5 51. Kg2 Ng4 52. Bc4 Kd7 53. Kf3 Nh2+ 54. Ke4 f3 55. Be1 Bd8 56. Bg3 Ng4
57. Bb5+ Ke6 58. Bc4+ Kd7 59. Bb5+ Ke6 60. Kxf3 Nf6 61. Bc4+ Kd7 62. Bh4 Kc6 63. Ke2 Be7 64. Kd3 Kb6
65. b4 Kc6 66. Bg5 Kb6 67. Kc2 Kc6 68. Kb3 Bd8 69. b5+ Kd6 70. Bh4 Be7 71. Bf7 Kc7 72. Kc4 Kd7
73. Bg6 Kc7 74. Be4 Kb6 75. Bc6 Ng8 76. Bf2 Ka5 77. d5 Nh6 78. Bg3 Bd8 79. Be1+ Kb6 80. Bf2+ Ka5
81. Be1+ Kb6 82. Bf2+ Ka5 83. d6 Nf7 84. Be1+ Kb6 85. Bf2+ Ka5 86. Kd5 Bg5 87. Ke6 Nd8+ 88. Kd7 Nf7
89. Bc5 Bf4 90. Ke7 Nxd6 91. Bxd6 Be3 92. Kd7 Kb6 93. Bc7+ Kc5 94. b6 Kc4 95. b7 Ba7 96. Bb6 Bxb6
97. b8=Q Bd4 98. Qb5+ Kc3 99. Be4 Ba7 100. Qd3+ Kb4 101. Kc6 Bd4 102. Bd5 Ba1 103. Qc4+ Ka3 104. Qb3# 1-0

[Round "1.5"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "1/2-1/2"]
[Termination "3-fold repetition"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "136"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 f6 7. Bd3 fxe5 8. dxe5 c4
9. Bc2 Bc5 10. O-O Nh6 11. Nbd2 Ng4 12. Qe2 O-O 13. Ne4 dxe4 14. Qxe4 Rxf3 15. gxf3 Nxf2 16. Qxh7+ Kf8
17. Qh8+ Kf7 18. Qh5+ Kf8 19. Rxf2 Bxf2+ 20. Kh1 Be3 21. Be4 Ke7 22. Qg6 Kf8 23. Qh5 Ke7 24. Bxc6 bxc6
25. Qh8 Kf7 26. Qh5+ Ke7 27. Qh7 Kd8 28. Qxg7 Bd7 29. Bxe3 Qxe3 30. Qf8+ Be8 31. Rg1 Rb8 32. b4 Rb7
33. Qf6+ Kc7 34. Rg7+ Bd7 35. Rxd7+ Kxd7 36. Qg7+ Kc8 37. Qf8+ Kd7 38. Qf7+ Kd8 39. Qf8+ Kc7 40. Qe7+ Kb6
41. Qd8+ Rc7 42. Qb8+ Rb7 43. Qd8+ Rc7 44. Qb8+ Ka6 45. Qxc7 Qxf3+ 46. Kg1 Qd1+ 47. Kg2 Qc2+ 48. Kf1 Qd1+
49. Kg2 Qc2+ 50. Kf1 Qd3+ 51. Kg1 Qf3 52. h4 Qd1+ 53. Kh2 Qd2+ 54. Kg1 Qd1+ 55. Kf2 Qd2+ 56. Kf1 Qd3+
57. Kg2 Qc2+ 58. Kg1 Qg6+ 59. Kh1 Qe4+ 60. Kg1 Qg4+ 61. Kf1 Qf3+ 62. Kg1 Qg3+ 63. Kf1 Qd3+ 64. Kf2 Qd2+
65. Kf1 Qc1+ 66. Kg2 Qc2+ 67. Kf1 Qc1+ 68. Kg2 Qc2+ 1/2-1/2

[Round "1.6"]
[White "Stockfish-16_231112"]
[Black "Sawfish"]
[Result "1/2-1/2"]
[Termination "50 moves rule"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "299"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. g3 Bb7 7. Bg2 h5 8. O-O h4
9. Re1 Nc6 10. Nd5 Nxd4 11. Qxd4 f6 12. e5 Bxd5 13. Bxd5 Rc8 14. Qd3 f5 15. Bf3 hxg3 16. hxg3 Nh6
17. a4 Bc5 18. Kg2 Nf7 19. axb5 axb5 20. Qxb5 Qc7 21. Ra6 Ke7 22. b4 Bd4 23. Qd3 Bxe5 24. Re2 Qc4
25. Qxc4 Rxc4 26. b5 g5 27. Rd2 g4 28. Be2 Rd4 29. c4 Rxd2 30. Bxd2 Bd4 31. f3 gxf3+ 32. Bxf3 Rb8
33. Bb4+ Kf6 34. Be2 Rc8 35. Ba3 d6 36. Bxd6 Nxd6 37. Rxd6 Ke5 38. Ra6 Kf6 39. Kf3 Ke5 40. g4 fxg4+
41. Kxg4 Rc7 42. Kh5 Kf6 43. Ra8 Bf2 44. Kg4 Ke5 45. Rg8 Bc5 46. Kg5 Rf7 47. Rc8 Kd4 48. Re8 e5
49. Rd8+ Kc3 50. Rd5 Kb4 51. Rxe5 Rf2 52. Kg6 Bd4 53. Re4 Rf6+ 54. Kg5 Rd6 55. Kf5 Rf6+ 56. Kg5 Rd6
57. Rg4 Rd8 58. Kf5 Bc5 59. Rg3 Re8 60. Bd3 Rb8 61. Ke4 Rb7 62. Kd5 Rb6 63. Rh3 Rd6+ 64. Ke5 Rd8
65. Rf3 Bd4+ 66. Ke4 Rd6 67. Rf1 Bb6 68. Rb1+ Kc5 69. Be2 Rd4+ 70. Ke5 Bc7+ 71. Kf6 Rd6+ 72. Kf5 Bb6
73. Ke4 Rd4+ 74. Kf3 Rd6 75. Ke3 Ba5 76. Ra1 Bb6 77. Bd3 Rd7 78. Kd2 Ra7 79. Rh1 Kb4 80. Rb1+ Kc5
81. Kc2 Ra3 82. Rh1 Kb4 83. Rb1+ Ka5 84. Bf5 Bd4 85. Be6 Ra1 86. Rb3 Bc5 87. b6 Bxb6 88. Bc8 Bf2
89. Rb5+ Ka4 90. Bg4 Rh1 91. Bf3 Rh4 92. Kd3 Rh3 93. Rb2 Bc5 94. Ke4 Ka3 95. Rb1 Rh6 96. Kd5 Be7
97. Kd4 Rh4+ 98. Kd5 Rh6 99. c5 Bxc5 100. Kxc5 Rh8 101. Bb7 Rd8 102. Kc4 Ka2 103. Rb6 Rg8 104. Ba6 Ka3
105. Kc5 Rg7 106. Bb7 Rc7+ 107. Bc6 Rc8 108. Kc4 Rg8 109. Rb3+ Ka2 110. Bd5 Rg5 111. Rb7 Rg3 112. Be6 Ka3
113. Bf5 Rg1 114. Bc2 Rg8 115. Rb3+ Ka2 116. Bf5 Rg1 117. Rb7 Rc1+ 118. Kb4 Kb2 119. Rg7 Re1 120. Rg2+ Kc1
121. Kc3 Re3+ 122. Bd3 Kd1 123. Rg8 Ke1 124. Rf8 Kd1 125. Ra8 Ke1 126. Rf8 Kd1 127. Rf1+ Re1 128. Bc2+ Ke2
129. Bd3+ Kd1 130. Rf2 Re8 131. Rf3 Re1 132. Rf4 Re8 133. Rf7 Re3 134. Rf4 Re8 135. Rf6 Re3 136. Ra6 Ke1
137. Rf6 Kd1 138. Rf2 Re8 139. Rf5 Re3 140. Rd5 Rf3 141. Re5 Rg3 142. Ra5 Ke1 143. Rf5 Rg1 144. Kc2 Rg2+
145. Kc1 Rg1 146. Bb5 Rh1 147. Ba6 Rg1 148. Bb5 Rh1 149. Bd3 Rg1 150. Bb1 1/2-1/2

[Round "1.7"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "1/2-1/2"]
[Termination "insufficient material"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "180"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Bd7 5. Nf3 Nc6 6. a3 c4 7. Be2 f6 8. O-O fxe5
9. Nxe5 Nxe5 10. dxe5 Qc7 11. a4 Bc5 12. b4 cxb3 13. Nd2 Qxe5 14. Nxb3 Bd6 15. g3 Qxc3 16. Rb1 Nf6
17. Bb2 Qc7 18. Bxf6 gxf6 19. Bh5+ Ke7 20. Qd2 Rag8 21. Rfc1 Qb8 22. Na5 Bf4 23. Qd4 Be5 24. Qd2 b6
25. Nc6+ Bxc6 26. Rxc6 Rc8 27. Rcc1 Rxc1+ 28. Rxc1 Rc8 29. Rxc8 Qxc8 30. Qh6 Qg8 31. Be2 Qg6 32. Qc1 Bd6
33. Qc8 Qe8 34. Qc2 Qg6 35. Qc6 Qe8 36. Qc2 Qh8 37. Qc6 Qd8 38. Bb5 Kf7 39. Qb7+ Qc7 40. Qa8 Qb8
41. Qc6 f5 42. Qd7+ Be7 43. h4 a5 44. Kg2 Qd8 45. Qb7 f4 46. gxf4 Qg8+ 47. Kf1 Qg6 48. Qxb6 Qb1+
49. Kg2 Qe4+ 50. Kf1 Qxf4 51. Qxa5 Bc5 52. Be8+ Kxe8 53. Qb5+ Kd8 54. Qxc5 Qxa4 55. Qb6+ Ke7 56. Qc7+ Qd7
57. Qe5 Qb5+ 58. Kg2 Qd3 59. Qg7+ Kd6 60. Qf8+ Kc6 61. Qc8+ Kb5 62. Qxe6 d4 63. f4 Qc2+ 64. Kf3 d3
65. Qe4 Qd1+ 66. Kf2 Qc2+ 67. Kf3 Kc5 68. f5 Qd1+ 69. Kf2 Qd2+ 70. Kg3 Qe2 71. Qxe2 dxe2 72. Kf2 h5
73. f6 Kd6 74. Kxe2 Ke6 75. Kf3 Kxf6 76. Kf4 Kg7 77. Kg5 Kh7 78. Kxh5 Kh8 79. Kg6 Kg8 80. Kh6 Kh8
81. h5 Kg8 82. Kg5 Kg7 83. h6+ Kh7 84. Kh5 Kh8 85. Kg4 Kg8 86. Kg5 Kh7 87. Kh5 Kh8 88. Kh4 Kg8
89. Kg4 Kh7 90. Kf5 Kxh6 1/2-1/2

[Round "1.8"]
[White "Stockfish-16_231112"]
[Black "Sawfish"]
[Result "1-0"]
[Termination "checkmate"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "171"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. g3 Bb7 7. Bg2 h5 8. O-O h4
9. Re1 Nc6 10. Nd5 Nxd4 11. Qxd4 f6 12. e5 Bxd5 13. Bxd5 Rc8 14. Qd3 Bc5 15. Bf3 Nh6 16. Qg6+ Kf8
17. Bf4 Qe8 18. Qd3 g5 19. Bd2 g4 20. Bg2 f5 21. b4 Be7 22. a4 h3 23. Bf1 Nf7 24. axb5 axb5
25. Ra7 Kg7 26. Qd4 Rxc2 27. Bxb5 Qc8 28. Ba4 Ra2 29. Rc1 Qb8 30. Qxd7 Qd8 31. Qxe7 Qxe7 32. Rxe7 Rxa4
33. Kf1 Rd8 34. Ke1 Kf8 35. Rxe6 Re8 36. Rcc6 Ra1+ 37. Ke2 Ra2 38. Kd1 Rd8 39. Rc2 Ra1+ 40. Ke2 Kg7
41. b5 Rd4 42. Be3 Rd5 43. b6 Rb1 44. Rc7 Rb2+ 45. Ke1 Rb1+ 46. Bc1 Kf8 47. Ke2 Rxe5+ 48. Rxe5 Nxe5
49. b7 Nf3 50. Rc8+ Ke7 51. b8=R Rxb8 52. Rxb8 Nxh2 53. Rb1 Nf3 54. Bf4 Kf7 55. Ke3 Kg6 56. Rd1 Kf7
57. Bc7 h2 58. Rh1 Kg6 59. Bd8 Ne5 60. Rxh2 Nd7 61. Kd4 Nb8 62. Kd5 Na6 63. Kc4 Nb8 64. Rh1 Nc6
65. Bc7 Ne7 66. Re1 Nc8 67. Re8 Na7 68. Kc5 f4 69. Bxf4 Kf5 70. Ra8 Nc8 71. Rxc8 Ke4 72. Rf8 Kd3
73. Kd5 Kc2 74. Ra8 Kb3 75. Ke4 Kc4 76. f3 gxf3 77. Rc8+ Kb5 78. Kxf3 Kb4 79. g4 Kb5 80. g5 Kb6
81. g6 Kb5 82. g7 Kb6 83. Rb8+ Kc6 84. g8=Q Kc5 85. Ke4 Kc6 86. Qd5# 1-0

[Round "1.9"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "1/2-1/2"]
[Termination "50 moves rule"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "218"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 f5 8. Nc3 a6
9. g3 b5 10. Bg2 Bb7 11. O-O O-O 12. Ne5 Bxg2 13. Kxg2 b4 14. Na4 Qd5+ 15. Qf3 Qxf3+ 16. Nxf3 Nc6
17. d5 exd5 18. c3 Bd6 19. Rfd1 Ne7 20. cxb4 Rfb8 21. a3 a5 22. Nc3 axb4 23. Nxd5 bxa3 24. bxa3 Ra4
25. Nxe7+ Bxe7 26. Rd5 f4 27. Rf5 Bd6 28. Ne5 Bxe5 29. Rxe5 fxg3 30. Rg5+ Kf8 31. hxg3 Rba8 32. Rc1 Rxa3
33. Rf5 R8a5 34. Rf6 Kg7 35. Rf4 R3a4 36. Rxa4 Rxa4 37. Rc6 Ra2 38. Kh3 h5 39. f4 f6 40. Rxc7+ Kh6
41. Rc1 Rb2 42. Rh1 Kg6 43. Ra1 Rb6 44. Rf1 Rb2 45. g4 hxg4+ 46. Kxg4 f5+ 47. Kf3 Rb3+ 48. Kg2 Rb2+
49. Kg3 Rb3+ 50. Kg2 Kh5 51. Rg1 Kg4 52. Kf2+ Kxf4 53. Rg7 Rb2+ 54. Kg1 Kf3 55. Rc7 Rb1+ 56. Kh2 Re1
57. Rb7 Re2+ 58. Kg1 Re1+ 59. Kh2 f4 60. Rf7 Re2+ 61. Kg1 Rg2+ 62. Kf1 Rb2 63. Kg1 Ke3 64. Rf6 Rb7
65. Kg2 Rb2+ 66. Kf1 Rb1+ 67. Kg2 Rb2+ 68. Kf1 Kf3 69. Kg1 Rb1+ 70. Kh2 Rb2+ 71. Kg1 Rg2+ 72. Kf1 Ra2
73. Kg1 Ra1+ 74. Kh2 Ra2+ 75. Kg1 Rb2 76. Rf7 Rb1+ 77. Kh2 Re1 78. Rf6 Re2+ 79. Kg1 Rg2+ 80. Kf1 Rc2
81. Kg1 Re2 82. Kf1 Rf2+ 83. Kg1 Re2 84. Kf1 Rf2+ 85. Kg1 Ra2 86. Rf7 Ra1+ 87. Kh2 Re1 88. Rf6 Re4
89. Kg1 Re5 90. Kf1 Ra5 91. Kg1 Ra1+ 92. Kh2 Re1 93. Rf7 Re4 94. Kg1 Re2 95. Kf1 Ra2 96. Kg1 Re2
97. Kf1 Rf2+ 98. Kg1 Rg2+ 99. Kh1 Rf2 100. Kg1 Rd2 101. Rf6 Rd1+ 102. Kh2 Rd2+ 103. Kg1 Rd7 104. Rf8 Rd1+
105. Kh2 Rd2+ 106. Kg1 Rd1+ 107. Kh2 Rd5 108. Kg1 Rg5+ 109. Kh2 Rg2+ 1/2-1/2

[Round "1.10"]
[White "Stockfish-16_231112"]
[Black "Sawfish"]
[Result "1-0"]
[Termination "checkmate"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "115"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd2 Qc7 8. Qe2 d6
9. Nc2 Bc5 10. g4 Nc6 11. g5 Nd7 12. h4 O-O 13. h5 f6 14. g6 h6 15. O-O-O b5 16. cxb5 axb5
17. Nxb5 Qb8 18. b4 Rxa2 19. Qc4 Rxc2+ 20. Kxc2 Nde5 21. Qb3 Nd4+ 22. Nxd4 Bxd4 23. Bxh6 Qb6 24. Be3 Qc6+
25. Kd2 Qxe4 26. Rh3 Nf3+ 27. Rxf3 Qxf3 28. Be2 Bxe3+ 29. fxe3 Qe4 30. Qc4 Qa8 31. Qd4 Bd7 32. Ra1 Qg2
33. Ra5 d5 34. Qa7 Qe4 35. Qb7 Qb1 36. Rc5 Rd8 37. Bd3 Qb2+ 38. Rc2 Qb3 39. Rc7 Qa4 40. Bc2 Qb5
41. Qxb5 Bxb5 42. Bd3 Be8 43. b5 Rd6 44. Kc3 d4+ 45. exd4 Kf8 46. Bc4 Rd7 47. Rxd7 Bxd7 48. b6 Bc8
49. Bxe6 Bb7 50. d5 f5 51. d6 f4 52. h6 gxh6 53. d7 Ke7 54. g7 Bc8 55. dxc8=Q Kf6 56. g8=Q f3
57. Qcd8+ Ke5 58. Qd4# 1-0

[Round "1.11"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "0-1"]
[Termination "checkmate"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "176"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 h6 5. Bxf6 Qxf6 6. exd5 Bb4 7. Bc4 O-O 8. Ne2 exd5
9. Bxd5 Rd8 10. Be4 c5 11. O-O Nc6 12. d5 Ne5 13. Rb1 Rb8 14. a4 Bd7 15. Qc1 a6 16. Ng3 Bxc3
17. bxc3 Bxa4 18. Re1 Bb5 19. Nh5 Qh4 20. Ng3 Nc4 21. Bd3 Qg5 22. Qxg5 hxg5 23. Nf1 Nd6 24. Ne3 c4
25. Bf1 Re8 26. Ra1 Re5 27. Red1 Rbe8 28. g3 Kf8 29. Ng4 Re4 30. Ne3 R4e7 31. Rd4 Re4 32. Rdd1 g6
33. Rdb1 R4e7 34. Rd1 f5 35. Ng2 Ne4 36. Ra3 g4 37. Nf4 Kf7 38. Bg2 Nc5 39. Raa1 g5 40. d6 Rd7
41. Nd5 Rxd6 42. Ne3 Rxd1+ 43. Rxd1 Re5 44. Bd5+ Ke7 45. Bg2 a5 46. Rb1 Ba6 47. Nd5+ Kd6 48. Rd1 b5
49. h4 gxh3 50. f4 gxf4 51. gxf4 Re2 52. Bxh3 Bb7 53. Kf1 Rh2 54. Bg2 Na4 55. Ne3+ Kc7 56. Bxb7 Kxb7
57. Kg1 Re2 58. Nxf5 Nxc3 59. Rd7+ Kb6 60. Nd4 Rd2 61. Kf1 a4 62. Nxb5 Rxd7 63. Nxc3 a3 64. Ke2 Kc5
65. Kf3 Ra7 66. Na2 Rb7 67. f5 Rb2 68. f6 Rb6 69. f7 Rf6+ 70. Ke3 Rxf7 71. Nc1 Rf5 72. Na2 Rh5
73. Kd2 Rh3 74. Nc1 c3+ 75. Ke2 Kc4 76. Nb3 a2 77. Na5+ Kb4 78. Nb3 Ka3 79. Kf2 Rh2+ 80. Kf3 Rxc2
81. Nd4 Rd2 82. Nb5+ Kb3 83. Kf4 a1=Q 84. Nd6 Rxd6 85. Kg5 Qf1 86. Kg4 Rg6+ 87. Kh5 Rg2 88. Kh6 Qh1#
0-1

[Round "1.12"]
[White "Stockfish-16_231112"]
[Black "Sawfish"]
[Result "0-1"]
[Termination "checkmate"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "156"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6
9. Na3 b5 10. Nd5 Be7 11. Bxf6 Bxf6 12. c3 Bg5 13. h4 Bh6 14. g4 Bf4 15. Nxf4 exf4 16. Qd5 Bb7
17. O-O-O Qd7 18. Qg5 Ne5 19. Qxg7 O-O-O 20. Qf6 Bxe4 21. Rg1 Rhg8 22. Nc2 f3 23. g5 Rge8 24. a4 Kb7
25. Nb4 Qc7 26. Bh3 a5 27. Rge1 axb4 28. Rxe4 bxc3 29. Bf5 Qc5 30. Re3 cxb2+ 31. Kb1 bxa4 32. Bxh7 Rc8
33. Qxd6 Qc1+ 34. Ka2 Nc6 35. Qd7+ Kb6 36. Qd2 Rxe3 37. Qxe3+ Qxe3 38. fxe3 Rh8 39. Bb1 Rxh4 40. Kxb2 Ne5
41. Rd6+ Kc5 42. Rf6 Kb4 43. Rb6+ Kc4 44. Rh6 Rg4 45. Rf6 a3+ 46. Kxa3 Kc3 47. g6 fxg6 48. Rf8 Rg5
49. Ka2 Nc4 50. Ka1 Ra5+ 51. Ba2 Nd2 52. e4 g5 53. Rg8 Nb3+ 54. Kb1 Nd2+ 55. Ka1 f2 56. Rc8+ Kd4
57. Rf8 f1=Q+ 58. Rxf1 Rxa2+ 59. Kxa2 Nxf1 60. Kb3 Kxe4 61. Kc2 g4 62. Kc3 Ke3 63. Kc4 Nd2+ 64. Kd5 g3
65. Kc5 Kd3 66. Kb5 Kd4 67. Kb4 Nc4 68. Kb3 Ne3 69. Kb4 Nc2+ 70. Kb5 g2 71. Kc6 Nb4+ 72. Kc7 Ke5
73. Kb6 Nd5+ 74. Kb5 g1=Q 75. Kc4 Ke4 76. Kb3 Qb1+ 77. Ka3 Kf3 78. Ka4 Qb4# 0-1

[Round "1.13"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "1/2-1/2"]
[Termination "50 moves rule"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "275"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 h6 5. Bxf6 Qxf6 6. exd5 Bb4 7. Bc4 exd5 8. Bxd5 O-O
9. Ne2 Rd8 10. O-O Bxc3 11. Nxc3 Nc6 12. Bxc6 bxc6 13. Re1 Rxd4 14. Ne4 Qe5 15. Qf3 Be6 16. c3 Rdd8
17. b3 a5 18. c4 a4 19. Nc3 Qa5 20. Nxa4 Bxc4 21. Rec1 Be6 22. Nc5 Bd5 23. Qf4 Qa3 24. Rc2 Re8
25. h3 Re7 26. Kh2 Rae8 27. Qa4 Qxa4 28. Nxa4 Re1 29. Rxe1 Rxe1 30. Nc5 Ra1 31. Kg3 g5 32. f3 f5
33. Nd3 Kg7 34. Nb4 Kf7 35. h4 Ke7 36. Nxc6+ Bxc6 37. Rxc6 gxh4+ 38. Kxh4 Rxa2 39. Rxc7+ Kf6 40. Rc6+ Ke5
41. Kh3 Rb2 42. Rb6 Kf4 43. Rb4+ Kg5 44. f4+ Kh5 45. Rb5 Kg6 46. Rb6+ Kh5 47. Rb5 Kg6 48. b4 Rb1
49. Rb8 Kh5 50. Rb5 Kg6 51. Kg3 Rb2 52. Rb8 Kh5 53. b5 Rb3+ 54. Kf2 Kg4 55. b6 Kxf4 56. b7 Rb2+
57. Kg1 h5 58. Kf1 h4 59. Ke1 Rb1+ 60. Ke2 Rb2+ 61. Kd3 Rb5 62. Kd2 Rb3 63. Ke1 Re3+ 64. Kf2 Re7
65. Kg1 Rh7 66. Kh1 Re7 67. Kh2 Rh7 68. Rg8 Rxb7 69. g3+ hxg3+ 70. Rxg3 Ke4 71. Ra3 f4 72. Kh3 Rd7
73. Kg2 Rd2+ 74. Kg1 f3 75. Rb3 Kf4 76. Rb7 f2+ 77. Kg2 Ra2 78. Kf1 Kf3 79. Rb3+ Ke4 80. Rb4+ Kf3
81. Rb3+ Ke4 82. Kg2 Kf4 83. Rb7 Ke3 84. Re7+ Kf4 85. Rf7+ Ke5 86. Re7+ Kd6 87. Rb7 f1=Q+ 88. Kxf1 Ra1+
89. Ke2 Ra2+ 90. Kd3 Kc5 91. Kc3 Kd6 92. Rg7 Ra8 93. Kb2 Ke5 94. Re7+ Kf5 95. Kb3 Kf6 96. Re3 Rh8
97. Kc3 Rh2 98. Kd3 Kf7 99. Kc4 Ra2 100. Kc5 Kf8 101. Kd5 Rd2+ 102. Ke6 Ra2 103. Rc3 Re2+ 104. Kd5 Rd2+
105. Ke6 Re2+ 106. Kd5 Kf7 107. Ra3 Rh2 108. Ke5 Re2+ 109. Kf4 Ke6 110. Ra6+ Kd7 111. Ra7+ Kd6 112. Ra6+ Kd7
113. Kf3 Rc2 114. Ra7+ Ke6 115. Ra6+ Ke7 116. Ke3 Rh2 117. Kd3 Kd7 118. Ra7+ Kc6 119. Ke4 Rh3 120. Ke5 Rd3
121. Rh7 Rd2 122. Rh6+ Kd7 123. Rh7+ Kc6 124. Rh6+ Kd7 125. Ra6 Rh2 126. Kd4 Rd2+ 127. Ke4 Re2+ 128. Kd3 Rg2
129. Ke3 Rh2 130. Ra7+ Ke6 131. Kd3 Kd6 132. Ra6+ Ke7 133. Kd4 Rh3 134. Ke5 Kd7 135. Ra7+ Kc6 136. Rf7 Re3+
137. Kd4 Ra3 138. Rf1 1/2-1/2

[Round "1.14"]
[White "Stockfish-16_231112"]
[Black "Sawfish"]
[Result "1/2-1/2"]
[Termination "insufficient material"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "186"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7
9. f4 Qb6 10. c4 Bb4+ 11. Ke2 f5 12. exf6 Nxf6 13. Be3 Qd8 14. Nd6+ Bxd6 15. Qxd6 Bb7 16. Kd1 c5
17. Bd3 Rc8 18. Bxc5 Be4 19. b4 Rc6 20. Qd4 Bxd3 21. Qxd3 Qc7 22. Rc1 a5 23. a3 Qxf4 24. Qf3 Qc7
25. Qd3 axb4 26. axb4 Rxc5 27. bxc5 O-O 28. Re1 Qxc5 29. h3 h6 30. Rf1 Qe5 31. Rf2 d5 32. Qc3 d4
33. Qd3 Qc5 34. Ke1 e5 35. Rd1 Qe7 36. Kf1 Rd8 37. c5 Qe6 38. Qf5 Qa6+ 39. Kg1 e4 40. Qe5 e3
41. Rb2 Rd5 42. Qe7 Kh7 43. Kh2 Qa4 44. Rf1 Qc6 45. Rd1 Rd7 46. Qe5 Rd5 47. Qe7 Qe8 48. Qxe8 Nxe8
49. Rd3 Kg6 50. Kg3 Nc7 51. Kf3 Ne6 52. Rc2 Rf5+ 53. Ke4 Rxc5 54. Rxc5 Nxc5+ 55. Kxd4 Nxd3 56. Kxd3 Kg5
57. Kxe3 Kf5 58. Kf3 h5 59. g3 Ke5 60. Ke3 Kf5 61. Kf3 Ke5 62. Ke3 g6 63. Kf3 Kf5 64. Ke3 Ke5
65. Kf3 Kf5 66. Ke3 g5 67. Kf3 Ke5 68. Ke3 Kf5 69. Kd4 g4 70. h4 Ke6 71. Ke4 Kd6 72. Kd4 Kc6
73. Ke4 Kc5 74. Kf4 Kd4 75. Kg5 Ke3 76. Kxh5 Kf3 77. Kg6 Kxg3 78. h5 Kf4 79. h6 g3 80. h7 g2
81. h8=Q g1=Q+ 82. Kf7 Qa7+ 83. Ke6 Qa6+ 84. Kd7 Qd3+ 85. Kc7 Qc2+ 86. Kb6 Qb3+ 87. Kc5 Qa3+ 88. Kb5 Qb3+
89. Kc5 Qa3+ 90. Kb5 Qe7 91. Kc4 Qe4+ 92. Qd4 Kf5 93. Qxe4+ Kxe4 1/2-1/2

[Round "1.15"]
[White "Sawfish"]
[Black "Stockfish-16_231112"]
[Result "1/2-1/2"]
[Termination "3-fold repetition"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "26"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 Nge7 7. h4 cxd4 8. cxd4 Qb6
9. Nc3 Nf5 10. Na4 Qa5+ 11. Nc3 Qb6 12. Na4 Qa5+ 13. Nc3 Qb6 1/2-1/2

[ZamChess]

”Check the archive with the engine. I think you did not look inside it.”

You are right Dorsz.
It wasn't until the afternoon that I unzipped and saw the same .jpg as no. 1 sent by me.

All the best.

[dorsz]

Thanks for the test, but I think something is wrong with it. "Time control: 5+1" I thought it is 5 minutes + 1 second, but after watching some games I found some moves very strange, so I started to think it can be 5 seconds + 1 second. What time control and CPU did you use?

Some examples (FEN with played move):
2q4r/R2pbnk1/4p3/4Pp2/BP1Q2p1/6Pp/2rB1P1P/4R1K1 b - - 0 28 Ra2
r2qkbnr/1b1p1pp1/p3p3/P2Nn3/1p1NP2p/6P1/1PP2PBP/R1BQR1K1 b kq - 0 12 Nf6
7r/kpqbbpp1/p1r1p2p/n2pP2P/P2P4/2P3P1/R1QBBPK1/4N2R b - - 0 27 Bb4
7r/kpqb1pp1/2r1p2p/nP1pP2P/1b1P4/2P3P1/R1QB1PK1/4N2R b - - 0 29 Rxc3
2kr2r1/3q1p1p/p2p1Q2/1p2n3/4bpPP/2P5/PPN2P2/2KR1BR1 b - - 0 22 f3
3rr3/1kq2p1p/p2p1Q2/1p2n1P1/PN2b2P/2P2p2/1P3P2/2KR1BR1 w - - 0 26 Bh3

I tried both engines: Stockfish and Sawfish and could not reproduce these very suboptimal moves.

PLEASE DON'T POST CHESS DIAGRAMS IN THIS THREAD BECAUSE IT BREAKS THE FORUM.

[superbatil]

Time Control:
5 minutes
1 second
Test:
Android Nougat
Terminal:
Termux
c-chess-cli

[OrgZ]

...except the new and shiny Sawfish 1.0.
Sawfish - Stockfish derivative made for fun, often sharp and sometimes crazy. The engine is suitable for playing and analyzing, it supports Polyglot books.

WARNING
Sharp saw

viewtopic.php?f=4&t=3778&p=31525#p31525