New engine: Caissa

[Rubinus]

Caissa 0.2 - YACE Paderborn 12:0 ! threads=1. Much better! So tonight we're gonna try for a rematch against SmarThink.

[Sylwy]

Caissa 0.2 - YACE Paderborn 12:0 ! threads=1. Much better! So tonight we're gonna try for a rematch against SmarThink.

Caissa 0.2 is a near 3050 Elo points chess engine. Just my opinion.

Gaviota 1.0 x64 has 2871 Elo points (CCRL Blitz).

SmarThink 1.98 x64 has 3045 Elo points (CCRL Blitz) -so about the same strength with Caissa_0.2_x64 .

[Rubinus]

Caissa 0.2 - SmarThink 1.98 so far 2:2=0 (both 1 cpu) Eight more overnight.
The two lost games could be interesting, in both of them the opponent was better in the end. Firstly the timemanagement, when Caissa was already playing practically with a bonus and maybe some extension of critical variations. Cca after 50 moves.

[pgn][Event "15m+10s"]
[Site "?"]
[Date "2021.10.29"]
[Round "2"]
[White "SmarThink 1.98"]
[Black "Caissa 0.2"]
[Result "1-0"]
[ECO "C35"]
[Annotator "-0.35;-0.36"]
[PlyCount "229"]
[TimeControl "900+10"]

{Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz W=27.2 plies; 1 901kN/s; C30-39-LC0.
ctg B=25.0 plies; 765kN/s; C30-39-LC0.ctg} 1. e4 {B 0} e5 {B 0} 2. f4 {B 0}
exf4 {B 0} 3. Nf3 {B 0} Be7 {B 0} 4. Bc4 {B 0} Nf6 {B 0} 5. e5 {B 0} Ng4 {B 0}
6. O-O {B 0 Bílý mimo knihovnu} O-O {B 0} 7. h3 {-0.35/23 26} d5 {-0.36/19 32}
8. exd6 {-0.26/24 22 (Se2)} Qxd6 {-0.18/19 43} 9. Na3 {-0.33/24 36} Nf6 {-0.28/
18 62} 10. d4 {-0.23/24 35} a6 {-0.24/17 24 (c6)} 11. Bb3 {0.01/21 28} Be6 {-0.
14/18 45 (b5)} 12. Bxe6 {0.20/23 27} fxe6 {-0.14/19 59} 13. Nc4 {0.28/23 9} Qd5
{-0.73/20 41} 14. Nce5 {0.00/23 13} Nh5 {-1.11/19 46 (Jfd7)} 15. Re1 {0.24/23
41 (c4)} Bf6 {-1.28/18 25 (Jd7)} 16. c3 {0.13/23 38 (c4)} Nc6 {-1.27/17 26} 17.
Nd3 {0.00/25 46 (Jg4)} g5 {-1.70/16 27 (Vad8)} 18. Nc5 {0.21/23 28} Rae8 {-2.
11/17 34} 19. Qb3 {0.07/23 68 (Jxb7)} Na5 {-2.56/17 25 (Dxb3)} 20. Qa4 {0.01/
22 31} e5 {-3.26/17 52 (Jc6)} 21. Qxa5 {0.09/23 26} e4 {-1.86/17 23} 22. Qa4 {
0.00/24 15 (Jxb7)} b5 {-1.54/17 40} 23. Qb3 {0.00/24 7} Qxb3 {-1.33/20 31} 24.
axb3 {0.00/25 22} exf3 {-1.36/21 34} 25. Rxe8 {0.00/26 25} Rxe8 {-1.96/21 31}
26. gxf3 {0.00/26 8} Re2 {-1.63/20 73 (Jg3)} 27. Ne4 {0.00/26 23} Be7 {-1.68/
20 52 (Vc2)} 28. Kf1 {0.00/24 7} Rc2 {-1.79/21 28} 29. Nd2 {0.00/26 30 (Ke1)}
b4 {-1.70/21 26} 30. c4 {0.00/27 9} Ng3+ {-1.75/22 34} 31. Ke1 {0.00/28 10} Nf5
{-1.47/22 27} 32. d5 {0.00/30 35} Bd6 {-1.46/21 37 (Je3)} 33. Ke2 {0.00/29 22
(Kd1)} Nd4+ {-1.69/21 21 (Se5)} 34. Kd1 {0.61/29 21} Kf7 {-1.50/22 65} 35. Rxa6
{0.61/28 20} Kg6 {-1.50/21 23 (h6)} 36. Ra8 {0.20/27 36} Kh5 {-1.33/21 67} 37.
Rh8 {0.20/28 28} h6 {-0.63/21 23} 38. Rh7 {0.20/29 19} Kg6 {0.00/21 31} 39. Rd7
{0.20/30 9 (Vh8)} h5 {-0.07/20 12 (Kh5)} 40. Rd8 {0.62/25 7} h4 {0.00/20 24
(Kf7)} 41. Re8 {0.66/26 22 (Vg8+)} Kf5 {0.00/21 17} 42. Rh8 {0.66/28 26 (Vc8)}
Rxd2+ {-2.10/20 12 (Sc5)} 43. Bxd2 {0.00/24 26} Nxf3 {-2.39/22 25} 44. Rb8 {0.
00/25 36 (Vc8)} g4 {-1.62/21 18} 45. hxg4+ {0.00/27 26} Kxg4 {-1.16/21 15} 46.
Ke2 {0.00/28 38} h3 {-2.79/21 13 (Jxd2)} 47. Rg8+ {0.00/25 5} Ng5 {-1.83/22 19}
48. Kf2 {0.00/29 17 (Kf1)} Kf5 {-1.71/21 17 (h2)} 49. Be1 {0.00/29 37} Be5 {-2.
96/19 10 (Je4+)} 50. c5 {0.00/25 29 (Vf8+)} Bd4+ {-2.02/18 9} 51. Kf1 {-0.07/
26 10} Nf3 {-2.32/18 11 (f3)} 52. d6 {2.32/23 17 (Vf8+)} cxd6 {-0.73/17 8 (h2)}
53. c6 {2.31/23 7} h2 {-0.82/17 12} 54. Kg2 {2.31/24 6} Nxe1+ {1.07/19 8} 55.
Kxh2 {1.62/25 14} Bb6 {1.17/21 12} 56. Rb8 {1.44/26 17} Bc7 {1.25/20 10} 57.
Rb7 {1.27/25 33 (Vxb4)} Bd8 {0.80/22 10} 58. Rxb4 {1.23/26 17} f3 {0.80/20 10
(Jf3+)} 59. Kg1 {2.25/25 18} d5 {1.62/20 8 (f2+)} 60. Rb8 {3.65/22 5} Bc7 {1.
53/21 10} 61. Rb7 {3.35/26 15} Bg3 {1.62/20 10} 62. Rg7 {3.36/26 19} Bd6 {1.54/
20 12} 63. Kf2 {3.36/26 12} Nd3+ {1.63/20 8} 64. Ke3 {3.36/27 4} f2 {1.63/19 11
} 65. c7 {3.36/26 6} Kf6 {1.63/18 10 (Sxc7)} 66. Ke2 {3.36/21 4} Bxc7 {1.63/19
10} 67. Rxc7 {3.36/26 7} Ke5 {2.20/23 10} 68. Ra7 {3.36/25 15 (Vf7)} Kd4 {2.09/
23 8 (Jxb2)} 69. Rf7 {3.36/28 18} Nc1+ {2.09/25 9 (Jxb2)} 70. Kxf2 {3.37/28 16
(Kd1)} Nxb3 {2.00/27 11} 71. Rc7 {3.37/28 16 (Ke2)} Nc5 {2.00/29 12} 72. Ke2 {
3.37/29 16} Kc4 {2.00/30 10} 73. Kd2 {3.37/28 13} d4 {2.00/31 7} 74. Rc8 {3.37/
29 18} Kb4 {2.00/31 12} 75. Kc2 {3.37/30 25} d3+ {2.00/30 10} 76. Kd2 {3.37/31
18} Kb5 {2.00/31 10} 77. Ke3 {3.37/31 18 (Vb8+)} Kc4 {2.00/32 10} 78. Rb8 {3.
37/30 10} Nb3 {2.00/31 10} 79. Rd8 {3.37/31 19 (Ve8)} Nc5 {2.00/33 9} 80. Rc8 {
3.37/31 14} Kb5 {2.00/34 10} 81. Rb8+ {3.37/31 12 (Kd2)} Kc4 {2.00/28 10} 82.
Rb6 {3.37/30 11 (Kd2)} Nb3 {2.00/35 8 (Jd7)} 83. Rc6+ {3.37/31 16 (Vd6)} Nc5 {
2.00/32 12} 84. Kd2 {3.37/31 16} Kb4 {2.00/32 10} 85. Rb6+ {3.37/31 16} Kc4 {
2.00/31 9} 86. Rb8 {3.37/31 11 (Kc1)} Ne4+ {2.00/31 10} 87. Ke1 {3.37/32 15}
Nc5 {2.00/31 10 (Jd6)} 88. Kd1 {3.37/31 19} Nb3 {2.00/32 10 (Je4)} 89. Rg8 {3.
37/31 10 (Vh8)} Nc5 {2.00/32 10} 90. Kd2 {3.37/29 9 (Vf8)} Nb3+ {2.00/32 10
(Kb3)} 91. Ke1 {3.37/31 14} Nc5 {2.00/32 10} 92. Kd1 {3.37/29 15 (Vb8)} Kb3 {
2.00/31 7 (Ja4)} 93. Rb8+ {3.37/29 10} Kc4 {2.00/31 12} 94. Rd8 {3.37/30 9
(Vb6)} Nb3 {2.00/33 10 (Je4)} 95. Rh8 {3.37/32 15} Nc5 {2.00/33 9} 96. Rc8 {3.
37/31 14 (Kd2)} Kb4 {2.00/34 10} 97. Rd8 {3.37/32 18} Kc4 {2.00/34 11 (Kb3)}
98. Re8 {3.37/30 11 (Vf8)} Kb3 {2.00/34 10 (Ja6)} 99. Re5 {3.37/28 3} Kc4 {2.
00/35 10 (Ja4)} 100. Rf5 {3.37/30 14 (Ve7)} Kb4 {2.00/33 10 (Ja4)} 101. Rf6 {
3.37/30 13 (Vf7)} Kb3 {2.00/33 10 (Kc4)} 102. Rb6+ {3.37/27 3 (Vf5)} Kc4 {2.00/
32 10} 103. Rc6 {3.37/31 24 (Vd6)} Kb4 {2.00/34 10 (Kd5)} 104. Rc8 {3.37/31 23
(Vg6)} Nb3 {2.00/33 10} 105. Rg8 {3.37/32 16 (Vc7)} Nc5 {2.00/35 10} 106. Rg4+
{3.37/31 11 (Vg6)} Kb3 {2.00/35 10} 107. Rg5 {3.37/28 4} Kc4 {2.00/35 10 (Kb4)}
108. Rh5 {3.37/28 19 (Vg7)} Na4 {2.00/32 9} 109. Rh2 {3.37/27 4} Nc5 {2.00/34
10} 110. Kd2 {3.37/31 13 (Vh7)} Na4 {0.00/32 10 (Kb4)} 111. Kc1 {4.85/26 7
(Ke1)} Nc5 {2.01/32 8 (Kb4)} 112. Rh4+ {5.70/24 22} Kb3 {10.53/31 9} 113. Kb1 {
6.79/26 13} Na4 {10.56/34 8 (Ja6)} 114. Rh2 {7.06/27 11} Kc4 {10.56/33 10 (Jb6)
} 115. Rh3 {7.06/27 10 (Vh8)} 1-0
[/pgn]

[pgn][Event "15m+10s"]
[Site "?"]
[Date "2021.10.29"]
[Round "3"]
[White "Caissa 0.2"]
[Black "SmarThink 1.98"]
[Result "0-1"]
[ECO "C30"]
[Annotator "-0.33;-0.49"]
[PlyCount "124"]
[TimeControl "900+10"]

{Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz W=18.1 plies; 781kN/s; C30-39-LC0.
ctg B=23.4 plies; 1 558kN/s; C30-39-LC0.ctg} 1. e4 {B 0} e5 {B 0} 2. f4 {B 0}
Bc5 {B 0} 3. Nc3 {B 0} Nc6 {B 0} 4. Nf3 {B 0} d6 {B 0} 5. Bb5 {B 0} Nge7 {B 0}
6. d4 {B 0} exd4 {B 0} 7. Nxd4 {B 0} O-O {B 0} 8. Be3 {B 0 Oba mimo knihovnu}
Bb6 {-0.49/23 38} 9. Qd2 {-0.33/17 27 (Sxc6)} d5 {-0.51/23 22} 10. O-O-O {-0.
54/18 45} dxe4 {-0.54/23 27} 11. Qf2 {-0.53/18 37} Qe8 {-0.64/21 36 (Jxd4)} 12.
f5 {-0.25/16 41 (Vhe1)} Bxd4 {-0.69/20 9} 13. Bxd4 {-0.32/18 38} Nxf5 {-0.67/
22 9} 14. Bc5 {-0.03/18 27} Nd6 {-0.56/23 27} 15. Bxd6 {-0.13/17 46 (Df4)} cxd6
{-0.71/24 42} 16. Rxd6 {0.01/18 63 (Df4)} Qe5 {-0.72/24 30} 17. Qg3 {-0.01/19
41 (Vd5)} f5 {-1.26/24 27 (Dxg3)} 18. Rd5 {-1.97/18 37} Qe7 {-1.33/24 22} 19.
Qf4 {-2.09/18 37} Be6 {-1.40/25 41} 20. Bxc6 {-2.05/19 36} bxc6 {-1.36/25 19}
21. Rd6 {-2.13/18 35} Rac8 {-1.52/23 31} 22. Rhd1 {-2.17/17 28} Rfe8 {-1.51/22
26} 23. g3 {-1.99/17 26 (h4)} h6 {-1.62/21 8} 24. h4 {-2.17/17 34 (Kb1)} Qb7 {
-1.58/23 33} 25. R1d2 {-2.17/17 61 (De5)} Rb8 {-1.89/24 46 (a5)} 26. b3 {-2.29/
18 34} c5 {-1.84/25 40 (a5)} 27. Nd5 {-1.86/17 23 (a3)} c4 {-2.17/22 17 (Vbc8)}
28. Qe5 {-2.46/17 30} Qf7 {-2.03/24 35} 29. Ne3 {-2.63/18 123} cxb3 {-1.85/23
36} 30. axb3 {-2.70/18 28} Ra8 {-1.86/23 34} 31. b4 {-2.10/17 38 (Dd4)} Rab8 {
-1.90/23 43 (Vac8)} 32. R2d4 {-1.94/17 25 (b5)} Rbc8 {-1.89/22 24 (a6)} 33. Rd2
{-1.90/18 54 (Kd1)} Qc7 {-2.12/22 10 (Va8)} 34. Rd1 {-1.37/17 24 (Vf2)} Rb8 {
-1.95/23 41 (Va8)} 35. Qc5 {-1.55/17 17} Qxc5 {-1.81/24 38} 36. bxc5 {-0.86/19
18} Rb5 {-1.65/23 20 (Vbc8)} 37. Rc6 {-0.79/20 27} Kf7 {-1.65/22 30 (a5)} 38.
Rdd6 {-0.47/20 33 (Vf1)} Re7 {-2.09/23 21 (a5)} 39. h5 {-0.41/19 19 (c4)} a5 {
-2.30/23 28 (Va5)} 40. c4 {-0.21/20 22 (Vd4)} Rb3 {-2.18/22 5} 41. Kd2 {-0.01/
21 35} Rb1 {-2.19/23 21} 42. Ke2 {-0.09/20 16} Rb2+ {-2.00/24 24 (Vh1)} 43. Ke1
{-0.17/20 21 (Kf1)} a4 {-1.90/24 42 (Vh2)} 44. Ra6 {-1.00/19 17} Rb3 {-1.61/23
37} 45. Ke2 {-0.24/19 19} a3 {-1.42/25 60} 46. Rdb6 {-0.84/18 20 (c6)} Rb2+ {
-1.60/24 17} 47. Ke1 {-1.25/19 23 (Kd1)} Ra2 {-1.80/21 4} 48. c6 {-1.37/18 17}
Ra1+ {-1.44/23 33} 49. Ke2 {-1.27/19 28 (Kd2)} a2 {-1.80/22 20} 50. Ra8 {-1.29/
18 10} Rh1 {-1.82/21 16 (Vc7)} 51. Rba6 {-0.62/18 13} Rxh5 {-3.08/22 17} 52.
Nd5 {-0.49/18 12} Bxd5 {-3.08/23 4 (f4)} 53. cxd5 {0.00/19 16} e3 {-3.12/24 12}
54. d6 {0.00/18 15} Rh2+ {-3.80/24 27} 55. Ke1 {0.00/16 14} Re5 {-3.80/24 28
(Vh1+)} 56. R6a7+ {-1.03/14 10 (Vxa2)} Kg6 {-5.38/24 16} 57. Rxa2 {-1.64/16 10}
e2 {-5.75/25 11} 58. Ra1 {-3.22/17 10} Rh1+ {-6.15/25 20} 59. Kd2 {-6.43/18 8}
e1=Q+ {-6.17/26 22} 60. Rxe1 {-6.82/20 12} Rexe1 {-6.17/27 25} 61. c7 {-8.23/
19 8} Rc1 {-6.23/28 17} 62. Ra6 {-8.42/19 12 (Ke2)} Kg5 {-7.85/25 14} 0-1
[/pgn]

[Rubinus]

Caissa 0.2 is a near 3050 Elo points chess engine. Just my opinion.

Gaviota 1.0 x64 has 2871 Elo points (CCRL Blitz).

SmarThink 1.98 x64 has 3045 Elo points (CCRL Blitz) -so about the same strength with Caissa_0.2_x64 .

Caissa 0.2 - SmarThink 1.98 6:5=1, both cpu=1, GUI DR3/F11-CB, book C30-39-LC0.ctg (My experimental book on King Gambit - a few dozen correspondence analyses of LC0 and later Stockfish, some games inserted from the database, where I now go through the played games and use Stockfish to correct obvious mistakes...)-depth 8.
The same, or maybe even a little better, as SmarThink - quite a few games, of course.
games

If I put 6 cores, it could help engines of this level by 50-120 ELO. According to the book "Chess on PC" the sparringpartner is supposed to be a bit better, so I'll give it a try against Fizbo. We'll see tomorrow.

[Rubinus]

If I put 6 cores, it could help engines of this level by 50-120 ELO. According to the book "Chess on PC" the sparringpartner is supposed to be a bit better, so I'll give it a try against Fizbo. We'll see tomorrow.

My attempt today crashed in the first game after a few moves.

[Gregory Owett]

Hi, Unfortunately, Caissa loses 50% of its games by crashing !

[Rubinus]

Hi, Unfortunately, Caissa loses 50% of its games by crashing !

Threads>1?

[Gregory Owett]

Hi, Unfortunately, Caissa loses 50% of its games by crashing !

Threads>1?

6 cores.

[JohnW]

Thanks for the new engine. I had it play a quick four game match against Rybka 3 and it did very well finishing the match in a tie.

[pgn][Event "Caissa 0.2-Rybka 3"]
[Site ""]
[Date "2021.10.31"]
[Round "1"]
[White "Caissa_0.2"]
[Black "Rybka 3"]
[Result "1-0"]
[BlackElo "3000"]
[ECO "A56"]
[Opening "Benoni"]
[Time "11:04:30"]
[Variation "3.d5 g6"]
[WhiteElo "3000"]
[TimeControl "60+1"]
[Termination "adjudication"]
[PlyCount "156"]
[WhiteType "human"]
[BlackType "human"]

1. d4 {(d2-d4 d7-d5 c2-c3 Ng8-f6 e2-e4 d5xe4 h2-h4) +0.49/13 1} Nf6
{(Ng8-f6 Nb1-c3 e7-e6 e2-e4 Bf8-b4 Bf1-d3 c7-c5 Ng1-f3 Nb8-c6 d4xc5 Bb4xc5
h2-h3) -0.01/13 3} 2. c4 {(c2-c4 e7-e6 Nb1-c3 d7-d5 Bc1-g5 d5xc4 e2-e3
a7-a6 Bf1xc4 b7-b5 Bc4-b3 c7-c5 Bg5xf6 g7xf6) +0.37/14 2} c5 {(c7-c5 d4-d5
g7-g6 Nb1-c3 Bf8-g7 Ng1-f3 O-O h2-h3 d7-d6 g2-g4) +0.08/13 2} 3. d5 {(d4-d5
d7-d6 Nb1-c3 g7-g6 e2-e4 e7-e6 f2-f4 e6xd5 Bf1-d3 Nf6xe4 a2-a4) +1.17/14 1}
g6 {(g7-g6 Nb1-c3 Bf8-g7 Ng1-f3 O-O g2-g3 Qd8-a5 Bc1-d2 d7-d6 Qd1-b3 Nb8-d7
Bf1-h3) +0.03/14 3} 4. h3 {(h2-h3 e7-e6 Nb1-c3 d7-d6 e2-e4 Bf8-g7 Bf1-d3
Nf6xe4 Nc3xe4 e6xd5 c4xd5 Qd8-e7) +1.36/13 2} Bg7 {(Bf8-g7 Nb1-c3 O-O
Ng1-f3 d7-d6 g2-g3 Qd8-a5 Bc1-d2 Nb8-d7 Qd1-b3 Rf8-e8) +0.12/14 3} 5. Nc3
{(Nb1-c3 e7-e6 e2-e4 e6xd5 c4xd5 O-O Ng1-f3 Rf8-e8 Bf1-d3 c5-c4 Bd3xc4
Re8xe4+ Nc3xe4) +0.77/13 2} O-O {(O-O e2-e4 Qd8-a5 Bc1-d2 Qa5-b6) 0.00/13
5} 6. e4 {(e2-e4 e7-e6 Bf1-e2 e6xd5 e4xd5 d7-d6 Ng1-f3 Rf8-e8 O-O Nb8-a6
a2-a3 Nf6-e4 Qd1-d2) +0.91/14 2} e6 {(e7-e6 e4-e5 Nf6-e8 Ng1-f3 d7-d6
Bc1-g5 Qd8-d7 Bf1-d3 e6xd5 c4xd5 d6xe5 O-O Ne8-d6 Qd1-e2) +0.05/12 3} 7.
Bd3 {(Bf1-d3 e6xd5 c4xd5 Rf8-e8 Ng1-f3 c5-c4 Bd3xc4 Nf6xe4 Nc3xe4 Re8xe4+
Ke1-d2) +0.91/13 1} exd5 {(e6xd5 e4xd5 Qd8-b6 Ng1-e2 d7-d6 Qd1-b3 Nf6-d7
Bd3-e4 f7-f5 Be4-c2) +0.07/12 2} 8. exd5 {(e4xd5 Rf8-e8+ Bc1-e3 Bg7-h6
Qd1-d2 d7-d6 Ng1-f3 Qd8-e7 a2-a4 Bh6xe3 O-O) +0.82/13 2} Re8+ {(Rf8-e8+
Ng1-e2 d7-d6) -0.08/12 2} 9. Nge2 {(Ng1-e2 d7-d6 O-O Nb8-d7 Ne2-g3 Nd7-e5
Bd3-e2 a7-a6 a2-a4 Ne5-d7 Ra1-a2 h7-h6 Rf1-e1 h6-h5) +0.87/14 2} d6 {(d7-d6
O-O Nb8-d7 Bc1-f4 Nd7-e5 Ne2-g3 Nf6-d7 Ng3-e4 Nd7-f6 Ne4-g3 Nf6-d7 Ng3-e4
Nd7-f6 Ne4-g3 Nf6-d7 Ng3-e4 Nd7-f6 Ne4-g3 Nf6-d7 Ng3-e4 Nd7-f6 Ne4-g3
Nf6-d7 Ng3-e4 Nd7-f6 Ne4-g3 Nf6-d7 Ng3-e4 Nd7-f6 Ne4-g3 Nf6-d7) 0.00/13 1}
10. O-O {(O-O Nb8-d7 Ne2-g3 Nd7-e5 Bd3-e2 a7-a6 a2-a4 Ne5-d7 Ra1-a2 h7-h6
b2-b3 h6-h5 Bc1-g5 Nd7-e5) +1.02/14 1} Nbd7 {(Nb8-d7 Ne2-g3 Nd7-e5 Bd3-e2
a7-a6 Rf1-e1 Qd8-c7 Bc1-g5 h7-h6 Bg5-e3 h6-h5) -0.05/14 6} 11. Ng3 {(Ne2-g3
Nd7-e5 Bd3-e2 a7-a6 a2-a4 Ne5-d7 Ra1-b1 Nd7-f8 b2-b3 h7-h5 Bc1-d2 Bc8-d7
Nc3-e4) +1.04/14 2} a6 {(a7-a6 Bd3-e2 Ra8-b8 Qd1-b3 Qd8-c7 Rf1-e1 Nd7-e5
Bc1-e3 b7-b6 Ra1-d1) -0.09/13 5} 12. a4 {(a2-a4 Nd7-e5 Bd3-e2 Ne5-d7 Ra1-a3
h7-h5 Bc1-g5 Nd7-f8 a4-a5 Nf8-h7 Bg5xf6 Nh7xf6 Ng3xh5 Nf6xh5) +0.96/14 2}
Ne5 {(Nd7-e5 Rf1-e1 Ne5xd3 Re1xe8+ Qd8xe8 Qd1xd3) +0.17/10} 13. Be2
{(Bd3-e2 Ne5-d7 Kg1-h1 b7-b6 Bc1-f4 Nd7-f8 Qd1-d2 h7-h5 f2-f3 Bc8-d7 Ra1-e1
Nf8-h7 Be2-d3) +1.09/14 3} b6 {(b7-b6 Rf1-e1 Bc8-b7 Bc1-e3 Qd8-e7 Qd1-b3
Ra8-b8 Qb3xb6) -0.06/10 1} 14. f4 {(f2-f4 Ne5-d7 Be2-d3 Ra8-b8 Ra1-a2
Rb8-b7 f4-f5 Nd7-e5 Bc1-g5 Ne5xd3 Qd1xd3 h7-h6 Ng3-e4) +1.80/13 1} Ned7
{(Ne5-d7 Rf1-e1 Qd8-c7 Bc1-d2 h7-h5 Qd1-c2 h5-h4 Ng3-f1 Ra8-b8) -0.04/12 1}
15. Bd3 {(Be2-d3 Ra8-a7 Bd3-c2 h7-h6 f4-f5 Nd7-e5 Bc1-g5 h6xg5 f5xg6)
+1.63/13 2} Bb7 {(Bc8-b7 Bc1-d2 Qd8-c7 Qd1-f3 Nd7-f8 Ra1-e1 Nf8-e6 f4-f5
Ne6-d4 Qf3-f2 Re8xe1) -0.01/12 2} 16. Bd2 {(Bc1-d2 Kg8-h8 f4-f5 Nd7-e5
f5xg6 Ne5xd3 Nc3-e4 Nf6xe4 Ng3xe4) +2.29/13 5} Qc7 {(Qd8-c7 Qd1-c2 Re8-e7
Ra1-e1 Ra8-e8 Re1xe7) -0.01/12 1} 17. f5 {(f4-f5 Re8-f8 Bd2-g5 Ra8-e8
Qd1-d2 Bb7-c8 Bd3-c2 Nd7-e5 Kg1-h1 Ne5xc4 Ra1-e1) +2.96/13 2} Ne5 {(Nd7-e5
Qd1-c2 Ne5xd3 Qc2xd3 Ra8-b8 b2-b3 Qc7-d8 Bd2-e3 Nf6-d7) -0.08/10 2} 18. Bg5
{(Bd2-g5 Re8-f8 b2-b3 Bb7-c8 Bd3-c2 Bc8-d7 Qd1-d2 Ra8-e8 Kg1-h1 b6-b5 a4xb5
a6xb5) +2.98/13 2} Rf8 {(Re8-f8 Qd1-d2 Ra8-e8 Ra1-e1 Qc7-d7 Bg5xf6 Bg7xf6
Nc3-e4 Bf6-h8) -0.10/11 2} 19. Ra2 {(Ra1-a2 Ra8-e8 Bd3-b1 h7-h6 Bg5xf6
Bg7xf6 b2-b3 Bf6-h4 Nc3-e4 Kg8-h8 f5-f6 Bb7-c8 Ng3-h5) +2.93/13 3} Rae8
{(Ra8-e8 b2-b3 Ne5xd3 Qd1xd3 h7-h6) -0.06/11 3} 20. b3 {(b2-b3 h7-h6 Bg5xf6
Bg7xf6 Ra2-e2 Bf6-h4 Nc3-e4 Bb7-c8 Qd1-d2 Ne5xd3 Qd2xd3 b6-b5 a4xb5)
+2.56/13 1} Nxd3 {(Ne5xd3 Qd1xd3 h7-h6 Bg5xf6 Bg7xf6 Ra2-e2 Bf6-d4+ Kg1-h1
Kg8-h7 Ng3-e4 Bb7-c8 f5-f6 Re8-e5) -0.01/12 1} 21. Qxd3 {(Qd1xd3 h7-h6
Bg5xf6 Bg7xf6 Ra2-e2 Kg8-g7 Nc3-e4 g6xf5 Ne4xf6 a6-a5) +2.65/14 2} h6
{(h7-h6 Ra2-f2 h6xg5 f5xg6 f7xg6 Qd3xg6 Nf6-h7 Ng3-f5 Kg8-h8 Nf5xd6 Bg7-d4
Nd6xe8 Rf8xf2 Rf1xf2 Qc7-f4 Qg6-g7+ Bd4xg7 Rf2xf4 g5xf4 Ne8xg7 Kh8xg7 a4-a5
b6xa5 Nc3-e4 Bb7-c8 Kg1-f2 Kg7-g6 h3-h4 Nh7-f6 Ne4xc5) -0.30/12 3} 22. Bxf6
{(Bg5xf6 Bg7xf6 Nc3-e4 Bf6-d4+ Kg1-h1 Bb7-c8 f5xg6 f7xg6 Rf1xf8+ Re8xf8
b3-b4 Kg8-h8 Ra2-e2 Qc7-e7) +2.30/14 2} Bxf6 {(Bg7xf6) -0.01/10} 23. Kh1
{(Kg1-h1 Bf6-e5 Ra2-f2 Kg8-g7 Nc3-e4 Bb7-c8 Qd3-d2 a6-a5 f5xg6 f7xg6 Rf2xf8
Re8xf8 Ne4xd6) +2.14/13 4} Kh7 {(Kg8-h7 Ra2-f2 Qc7-e7 Ng3-e4 Bf6-d4 Rf2-e2
Bd4-e5 f5-f6 Qe7-d7 Qd3-e3 Rf8-g8) -0.11/11 1} 24. Nce2 {(Nc3-e2 Bf6-e5
Ne2-f4 Be5xf4 Rf1xf4 Re8-e1+ Kh1-h2 g6-g5 Rf4-e4 Re1xe4 Qd3xe4 Bb7-c8
Ra2-e2 Rf8-g8) +4.00/13 1} g5 {(g6-g5 Ng3-h5 Qc7-d8 Ne2-g3 Kh7-g8 Ng3-e4
Bf6-d4 f5-f6 Re8-e5 Ra2-e2) -0.30/12 1} 25. Ne4 {(Ng3-e4 Qc7-d8 Ne2-g3
Kh7-h8 Ng3-h5 Bf6-d4 Ra2-e2 b6-b5 c4xb5 Bb7xd5 b5xa6 Rf8-g8 Nh5-f6 Bd5xe4
Re2xe4) +5.04/15 1} Qd8 {(Qc7-d8 Ne2-g3 Bb7-c8 Ne4xf6+ Qd8xf6 Ng3-e4 Qf6-d8
f5-f6 Kh7-h8) -0.51/12 2} 26. N2g3 {(Ne2-g3 Kh7-h8 Ra2-e2 Bf6-d4 Qd3-f3
Bb7-c8 Qf3-h5 Kh8-h7 Qh5xh6+ Kh7xh6 Ng3-h5) +4.77/15 2} Kg8 {(Kh7-g8 Qd3-f3
Bb7-c8 Ne4xf6+ Qd8xf6 Ng3-e4 Qf6-d8 f5-f6 Re8-e5 Ra2-f2 Qd8-d7 Qf3-e2
Kg8-h7 Qe2-d3) -0.51/14 1} 27. Nh5 {(Ng3-h5 Bf6-d4 Ra2-e2 Kg8-h8 g2-g4
Re8-e5 Kh1-g2 b6-b5 a4xb5 a6xb5 Rf1-e1 b5xc4 b3xc4 Qd8-a8) +5.55/14 2} Bd4
{(Bf6-d4 Ra2-e2 f7-f6 Rf1-e1 Re8-e5 b3-b4 a6-a5 b4-b5 Qd8-e7 Kh1-h2 Bb7-c8)
-0.34/13 1} 28. Re2 {(Ra2-e2 Kg8-h8 h3-h4 Re8-e5 Nh5-f6 Bb7-c8 g2-g4 Re5xf5
g4xf5 g5xh4 Qd3-h3 Bd4xf6) +5.38/13 2} f6 {(f7-f6 Rf1-e1 Re8-e5 b3-b4 a6-a5
b4-b5 Qd8-e7 Kh1-h2 Bb7-c8 g2-g4) -0.34/13 1} 29. Rfe1 {(Rf1-e1 Re8-e5
g2-g4 b6-b5 Kh1-g2 Rf8-f7 Qd3-f3 Kg8-f8 Nh5xf6 Rf7xf6 Ne4xf6 Qd8xf6)
+5.77/12 1} Re5 {(Re8-e5 h3-h4 Rf8-f7 g2-g4 Qd8-e7 Qd3-d2 Kg8-f8 Kh1-g2
a6-a5 h4xg5) -0.56/12 3} 30. g4 {(g2-g4 Rf8-f7 Kh1-g2 Kg8-f8 h3-h4 Bb7-c8
h4xg5 h6xg5 b3-b4 Qd8-d7 a4-a5 b6xa5 b4xa5) +5.66/13 2} b5 {(b6-b5 Kh1-g2
b5-b4 h3-h4 a6-a5 h4xg5 h6xg5 Qd3-d2 Re5xe4 Re2xe4 Bd4-c3) -0.38/11 1} 31.
Kg2 {(Kh1-g2 b5xa4 b3xa4 a6-a5 h3-h4 Bb7-a6 h4xg5 f6xg5 Qd3-c2 Rf8-f7
Ne4xg5 h6xg5) +5.56/12 1} Rf7 {(Rf8-f7 Ne4-d2 Re5xe2+ Re1xe2 b5-b4 Nd2-f3
Bd4-c3 Qd3-e4) -0.30/11 2} 32. axb5 {(a4xb5 a6xb5 h3-h4 g5xh4 Qd3-h3 b5xc4
b3xc4 Bb7-a6 Qh3xh4 Re5xe4 Re2xe4) +5.54/11 1} axb5 {(a6xb5 Ne4-d2 Re5xe2+
Re1xe2 b5-b4 Nd2-f3 Bd4-a1 Qd3-e4 Kg8-f8) -0.33/11 2} 33. h4 {(h3-h4 Kg8-f8
h4xg5 f6xg5 Re2-a2 b5-b4 Ra2-e2 Qd8-d7 Qd3-g3 Re5xd5 c4xd5) +5.29/11 1}
gxh4 {(g5xh4 Nh5-f4 b5xc4 b3xc4 Bb7-c8 Kg2-h3 Rf7-a7 Kh3xh4 Re5-e8)
-0.50/10 1} 34. Qh3 {(Qd3-h3 b5xc4 b3xc4 Bb7-a6 Qh3xh4 Ba6xc4 Nh5xf6+
Rf7xf6 Qh4xf6 Re5xe4 Qf6xd8+ Kg8-h7) +5.22/13 2} bxc4 {(b5xc4 b3xc4 Bb7-a6
Qh3xh4 Ba6xc4 Nh5xf6+ Rf7xf6 Qh4xf6 Qd8xf6 Ne4xf6+ Kg8-f7 Re2xe5 Bd4xe5
Re1-c1 Bc4-b3 Nf6-e4 Bb3xd5 Kg2-f3 Bd5-c6 Rc1-b1 Bc6-d5 Rb1-h1) -0.62/11 1}
35. bxc4 {(b3xc4 Bb7-a6 Qh3-d3 Qd8-e7 Qd3-c2 Kg8-h7 Qc2-c1 Rf7-f8 Qc1xh6+
Kh7xh6 Ne4-d2) +4.21/13 1} Ba6 {(Bb7-a6 Qh3xh4 Ba6xc4 Nh5xf6+ Rf7xf6 Qh4xf6
Qd8xf6 Ne4xf6+ Kg8-f7 Re2xe5 Bd4xe5 Re1-c1 Bc4-b3 Nf6-e4 Bb3xd5 Kg2-f3
Bd5-c6 Rc1-b1 Bc6-d5 Rb1-h1 Be5-g7 Rh1-b1) -0.62/12 1} 36. Qd3 {(Qh3-d3
Kg8-f8 Re2-a2 Ba6-c8 Qd3-f3 Kf8-g8 Ra2-a8 Bd4-c3 Re1-e2 Bc3-d4 Nh5xf6+
Rf7xf6 Ne4xf6+) +4.88/13 1} Bc8 {(Ba6-c8 Kg2-h3 Kg8-h8 Kh3xh4 Rf7-a7 Nh5-f4
Kh8-g8 Nf4-e6) -0.54/10 1} 37. Ra2 {(Re2-a2 Bc8xf5 Qd3-f3 Bf5xe4 Re1xe4
Re5xe4 Qf3xe4 h4-h3+ Kg2-h2) +5.62/12 1} Ree7 {(Re5-e7 Ra2-a8 Bd4-e5 Qd3-e3
Kg8-h7 Kg2-h3 Re7-b7) -0.24/10 1} 38. Ra8 {(Ra2-a8 Re7-b7 Qd3-e3 Kg8-h7
Kg2-h3 Bd4xe3 Re1xe3) +5.78/11 1} Rd7 {(Re7-d7 Qd3-h3 Bd4-e5 Qh3xh4 Rd7-c7
Re1-b1 Rf7-f8 Rb1-b8 Qd8-e7 Qh4-f2) -0.59/10} 39. Nf4 {(Nh5-f4 Bd4-e5
Nf4-e6 Qd8-e8 Qd3-d2 Rd7-a7 Ne4xd6 Be5xd6 Qd2xh6) +6.62/11 1} Be5 {(Bd4-e5
Nf4-g6 Rd7-a7 Ng6xe5 Ra7xa8 Ne5xf7 Kg8xf7 Qd3-f3 Kf7-g7 Kg2-h3 Ra8-a2)
-0.56/10 1} 40. Ne6 {(Nf4-e6 Qd8-e8 Qd3-e3 Rd7-a7 Ra8xa7 Rf7xa7 Qe3xh6
h4-h3+ Kg2-h1 Bc8xe6 f5xe6 Qe8-e7 Qh6-g6+) +5.46/12 1} Qe8 {(Qd8-e8 Qd3-e3
Rd7-a7 Ra8xa7 Rf7xa7 Qe3xh6 h4-h3+ Kg2xh3 Qe8-f7 g4-g5 Qf7-h7 Qh6xh7+
Ra7xh7+ Kh3-g4) -1.00/10 1} 41. Qd2 {(Qd3-d2 Rd7-a7 Ra8-b8 Ra7-b7 Rb8xb7
Rf7xb7 Qd2xh6 Rb7-b2+ Kg2-f3 Rb2-b3+ Re1-e3 Rb3xe3+ Kf3xe3 Qe8-e7 Qh6-g6+)
+5.61/12 1} h3+ {(h4-h3+ Kg2xh3 Rd7-b7 Qd2-e3 Rf7-e7 Re1-e2) -0.37/9 1} 42.
Kh1 {(Kg2-h1 Rd7-a7 Ra8xa7 Rf7xa7 Qd2xh6 Bc8xe6 f5xe6 Qe8-f8 Qh6-g6+ Qf8-g7
Qg6-f5 Ra7-a2 Ne4xf6+) +5.08/13 2} Ra7 {(Rd7-a7 Ra8-b8 Ra7-b7 Rb8xb7 Rf7xb7
Ne6xc5 Rb7-e7 Nc5-d3 Kg8-g7 Nd3-f4 Be5xf4 Qd2xf4 Bc8-a6 Kh1-h2) -0.67/10}
43. Rxa7 {(Ra8xa7 Rf7xa7 Ne6-d4 Qe8-f8 Nd4-c6 Ra7-a3 Nc6xe5 f6xe5 Qd2-f2
Bc8-a6 Qf2-e2 Kg8-f7 f5-f6 Ba6-c8) +3.06/14 2} Rxa7 {(Rf7xa7) -0.29/8} 44.
N6xc5 {(Ne6xc5 Qe8-e7 Nc5-d3 Ra7-a1 Re1xa1 Be5xa1 Qd2-f2 Bc8-a6 Kh1-h2
Qe7xe4 Kh2xh3) +2.26/14 2} Qe7 {(Qe8-e7 Nc5-d3 Ra7-a1 Re1xa1 Be5xa1 Qd2-e2
Ba1-e5 Qe2-e3 h6-h5 Qe3xh3) -0.25/10 1} 45. Ne6 {(Nc5-e6 Bc8xe6 f5xe6
Kg8-g7 Qd2-f2 Ra7-a4 c4-c5 d6xc5 Ne4-g3 Be5xg3 Qf2xg3 Ra4-d4 Qg3-e3)
+1.67/14 1} Ra4 {(Ra7-a4) -0.09/10 1} 46. Qxh6 {(Qd2xh6 Bc8xe6 f5xe6 Qe7-b7
Ne4xf6+ Be5xf6 Qh6xf6 Qb7xd5+ c4xd5 Ra4xg4 e6-e7 h3-h2) +2.83/13 1} Bxe6
{(Bc8xe6 f5xe6 Ra4-a2 Ne4-d2 Qe7-g7 Qh6xg7+ Kg8xg7 Nd2-f3 Kg7-f8 Nf3xe5
f6xe5 Re1-b1 Ra2-c2) -0.89/10 1} 47. Qg6+ {(Qh6-g6+ Kg8-h8 f5xe6 Ra4-a2
c4-c5 d6xc5 g4-g5 Qe7-b7 Qg6-h5+ Kh8-g7 g5xf6+ Be5xf6 Ne4xf6) +2.94/13} Kf8
{(Kg8-f8 f5xe6 Ra4-a2) -0.89/11} 48. fxe6 {(f5xe6 Ra4-a2 Ne4-d2 Qe7-g7
Qg6xg7+ Kf8xg7 Nd2-f3 Ra2-c2 g4-g5 f6xg5 Nf3xe5 d6xe5 Re1xe5) +1.75/13 1}
Ra2 {(Ra4-a2) -0.89/11 1} 49. Nd2 {(Ne4-d2 Qe7-g7 Qg6xg7+ Kf8xg7 Nd2-f3
Ra2-g2 g4-g5 Kg7-f8 Nf3xe5 f6xe5 c4-c5 d6xc5 d5-d6 Rg2xg5) +4.04/14} Qg7
{(Qe7-g7 Qg6xg7+ Kf8xg7 Nd2-f3 Ra2-c2 g4-g5 Rc2xc4) -1.72/10 1} 50. Qxg7+
{(Qg6xg7+ Kf8xg7 Nd2-f3 Ra2-c2 Nf3xe5 f6xe5 Re1-f1 Rc2xc4 Kh1-h2 Rc4-f4
Rf1xf4 e5xf4 Kh2xh3 Kg7-f6 g4-g5+ Kf6-e7) +2.40/16 1} Kxg7 {(Kf8xg7)
-1.72/9} 51. Nf3 {(Nd2-f3 Ra2-c2 Nf3xe5 f6xe5 Re1-f1 Rc2xc4 Kh1-h2 e5-e4
Rf1-f4 Rc4-c2+ Kh2xh3 e4-e3 Kh3-g3 e3-e2 Kg3-f2 Rc2-c5 Rf4-f5 e2-e1B+)
+4.63/18 1} Rc2 {(Ra2-c2 g4-g5 Rc2-c3 g5xf6+ Be5xf6 Nf3-d4 Rc3xc4 Nd4-f5+
Kg7-f8 e6-e7+ Bf6xe7 Nf5xe7 Rc4-d4 Kh1-h2 Rd4-d3 Ne7-g6+ Kf8-f7 Ng6-f4
Rd3-f3 Re1-e4) -2.13/11 1} 52. Nxe5 {(Nf3xe5 f6xe5 Re1-f1 Rc2xc4 Kh1-h2
e5-e4 Rf1-f4 Rc4-c2+ Kh2xh3 e4-e3 Kh3-g3 e3-e2 Kg3-f2 Rc2-a2 Rf4-f7+ Kg7-g6
Rf7-d7 Kg6-f6 Rd7xd6) +5.50/17} fxe5 {(f6xe5 Re1-f1 Rc2xc4 Kh1-h2 Rc4-c7
Kh2xh3 Kg7-g6 Kh3-g3 Rc7-b7 Rf1-f8 Kg6-g5 Rf8-g8+) -1.55/12 1} 53. Rf1
{(Re1-f1 Rc2xc4 Kh1-h2 Rc4-c8 Rf1-f7+ Kg7-g6 Kh2xh3 Kg6-g5 Kh3-g3 Rc8-c3+
Rf7-f3 Rc3-c8 Rf3-f5+ Kg5-g6 Rf5-f2 Rc8-a8 Rf2-f5 Ra8-a3+ Kg3-h4) +5.39/19}
Rxc4 {(Rc2xc4) -1.55/10} 54. Kh2 {(Kh1-h2 Rc4-c8 Rf1-f7+ Kg7-g6 Kh2xh3
Kg6-g5 Rf7-d7 Rc8-c3+ Kh3-g2 Rc3-c8 Rd7xd6 Kg5-g6 g4-g5 Rc8-a8 e6-e7+
Kg6xg5 Rd6-e6 Ra8-a1 e7-e8Q) +5.89/19 1} e4 {(e5-e4 Rf1-f4) -2.52/13 1} 55.
Rf4 {(Rf1-f4 Rc4-c3 e6-e7 Rc3-c8 Kh2xh3 Rc8-e8 Rf4xe4 Kg7-f7 Kh3-h4 Re8xe7
Re4xe7+ Kf7xe7 Kh4-g5 Ke7-f7 Kg5-h6 Kf7-e7 Kh6-g6) +6.99/17} Rc2+ {(Rc4-c2+
Kh2xh3 Rc2-c8 Rf4xe4 Kg7-g6 Re4-f4 Kg6-g5 Rf4-f5+ Kg5-g6 Kh3-g3 Rc8-b8
Rf5-f3) -2.72/13 1} 56. Kxh3 {(Kh2xh3 Rc2-c3+ Kh3-g2 e4-e3 Kg2-f3 Rc3-c5
e6-e7 Rc5-c8 Kf3xe3 Rc8-e8 Rf4-e4 Kg7-f7 Ke3-f3 Re8xe7 Re4xe7+ Kf7xe7)
+9.99/16 1} Rc3+ {(Rc2-c3+ Kh3-h4 e4-e3) -3.52/14 1} 57. Kh4 {(Kh3-h4 e4-e3
e6-e7 Rc3-c8 Kh4-g5 Rc8-a8 Rf4-e4 Kg7-f7 Re4xe3 Kf7-e8 Kg5-f6 Ra8-d8 g4-g5
Ke8-d7) +10.23/17 1} e3 {(e4-e3 e6-e7 Rc3-c8 Rf4-e4 Rc8-h8+ Kh4-g5 Kg7-f7
Re4xe3 Kf7-e8 Kg5-f6 Rh8-h7 g4-g5 Rh7-f7+ Kf6-g6 Rf7-f2 Re3-e6 Rf2-d2
Kg6-f6 Rd2-f2+ Kf6-g7 Rf2-f7+ Kg7-h6) -4.32/17 1} 58. e7 {(e6-e7 Rc3-c8
Kh4-g5 Rc8-a8 Rf4-e4 Kg7-f7 Re4xe3 Ra8-e8 Re3-e6 Re8xe7 Re6xe7+ Kf7xe7
Kg5-g6 Ke7-f8 Kg6-f6 Kf8-e8 Kf6-e6) +10.24/17 1} Rc8 {(Rc3-c8) -4.32/15}
59. Kg5 {(Kh4-g5 Rc8-g8 Rf4-e4 e3-e2 Re4xe2 Kg7-f7+ Kg5-f5 Rg8-e8 Re2-e6
Re8xe7 Re6xd6 Kf7-e8 Kf5-g6 Re7-f7 Rd6-d8+ Ke8xd8 Kg6xf7 Kd8-d7) +9.64/18}
Rh8 {(Rc8-h8 Rf4-e4 Kg7-f7 Re4xe3 Kf7-e8 Kg5-f6 Rh8-h7 g4-g5 Rh7-f7+ Kf6-g6
Rf7-f4 Re3-e6 Rf4-f3 Kg6-h6 Rf3-h3+ Kh6-g7 Rh3-d3 g5-g6 Rd3xd5 Kg7-f6
Rd5-d3) -4.31/18 1} 60. Re4 {(Rf4-e4 Kg7-f7 Re4xe3 Rh8-e8 Re3-f3+ Kf7-g7
Rf3-f6 Re8xe7 Rf6xd6 Re7-e1 Rd6-g6+ Kg7-f7 Rg6-f6+ Kf7-e7 Rf6-f5 Re1-b1
Kg5-g6 Ke7-d6 g4-g5) +10.00/19} Kf7 {(Kg7-f7 Re4xe3) -4.31/18 1} 61. Rxe3
{(Re4xe3 Kf7-e8 Kg5-g6 Rh8-h1 Re3-f3 Ke8xe7 g4-g5 Rh1-g1 Rf3-f5 Rg1-d1
Kg6-g7 Rd1xd5 Rf5xd5 Ke7-d8 g5-g6 Kd8-e7) +10.00/19 1} Ke8 {(Kf7-e8)
-4.31/16} 62. Kg6 {(Kg5-g6 Rh8-h1 Re3-f3 Ke8xe7 g4-g5 Rh1-g1 Rf3-f5 Ke7-d8
Kg6-h6 Kd8-c7 g5-g6 Kc7-b6 Kh6-g7 Kb6-c5 Kg7-f6 Rg1xg6+ Kf6xg6 Kc5-d4
Rf5-f6) +10.00/19} Rh2 {(Rh8-h2 g4-g5 Rh2-f2 Re3-e6) -4.13/14 1} 63. Re6
{(Re3-e6 Rh2-d2 Re6xd6 Ke8xe7 Rd6-e6+ Ke7-d8 Re6-e5 Kd8-c7 Kg6-h6 Rd2-d1
g4-g5 Kc7-d6 Re5-f5 Rd1-g1 Kh6-g6 Kd6-e7 Kg6-g7 Ke7-d7 Rf5-f7+ Kd7-d6)
+10.00/20} Rd2 {(Rh2-d2 g4-g5 Rd2xd5 Kg6-h6 Rd5-d3 g5-g6 Rd3-h3+ Kh6-g7
Rh3-h2 Kg7-f6 Rh2-f2+ Kf6-g5 Rf2-g2+ Kg5-f6) -2.13/14 1} 64. Rxd6 {(Re6xd6
Ke8xe7 Rd6-e6+ Ke7-d8 Re6-e5 Kd8-c7 Kg6-h6 Rd2-d1 g4-g5 Kc7-d6 Re5-f5
Rd1-g1 Kh6-g6 Kd6-e7 Kg6-g7 Ke7-d6 g5-g6 Rg1xg6+ Kg7xg6 Kd6-e7 d5-d6+)
+10.00/21} Kxe7 {(Ke8xe7 Rd6-e6+ Ke7-d8 Re6-e5 Kd8-d7 g4-g5 Rd2-b2 Kg6-f6)
-4.13/15 1} 65. Re6+ {(Rd6-e6+ Ke7-d8 Re6-e5 Kd8-c7 Kg6-h6 Rd2-d1 g4-g5
Kc7-d6 Re5-f5 Rd1-g1 Kh6-g6 Kd6-e7 Kg6-g7 Ke7-d6 g5-g6 Kd6-e7 Rf5-f6 Ke7-d7
Rf6-e6 Kd7-d8 Re6-f6) +10.00/21 1} Kd8 {(Ke7-d8 Re6-e5 Kd8-d7 g4-g5 Rd2-b2
Kg6-f6) -4.13/15 1} 66. Re5 {(Re6-e5 Rd2-g2 g4-g5 Kd8-c7 Re5-f5 Kc7-d6
Kg6-f7 Rg2-g3 g5-g6 Kd6-d7 g6-g7 Rg3-g2 g7-g8Q Rg2xg8 Rf5-f6 Rg8-g1 Rf6-e6
Kd7-d8) +10.10/18 1} Kd7 {(Kd8-d7 g4-g5) -4.13/13 1} 67. g5 {(g4-g5 Rd2-h2
Kg6-f6 Rh2-h8 Re5-f5 Rh8-f8+ Kf6-g6 Rf8-e8 Kg6-g7 Re8-e7+ Kg7-f6 Kd7-d6
g5-g6 Re7-e1 Kf6-g7 Kd6-e7 Rf5-f6 Ke7-d7) +10.04/18} Rb2 {(Rd2-b2 Kg6-f6)
-5.12/12 1} 68. Kf6 {(Kg6-f6 Rb2-b6+ Kf6-f7 Rb6-b2 Re5-f5 Kd7-d6 g5-g6
Rb2-b7+ Kf7-f6 Rb7-b1 g6-g7 Rb1-g1 Rf5-g5 Rg1xg5 Kf6xg5 Kd6xd5 g7-g8Q+)
+10.31/17} Rb8 {(Rb2-b8 g5-g6 Rb8-f8+ Kf6-g7) -5.42/11 1} 69. g6 {(g5-g6
Rb8-f8+ Kf6-g5 Kd7-d6 Re5-f5 Rf8-g8 Kg5-h6 Rg8-h8+ Kh6-g7 Rh8-h1 Kg7-f8
Rh1-h8+ Kf8-f7 Rh8-h4 g6-g7 Rh4-g4 Rf5-f2 Kd6-d7) +10.25/17 1} Rf8+
{(Rb8-f8+ Kf6-g7) -6.15/10 1} 70. Kg5 {(Kf6-g5 Kd7-d6 Re5-f5 Rf8-g8 Kg5-h6
Rg8-h8+ Kh6-g7 Rh8-h1 Kg7-f7 Rh1-g1 g6-g7 Kd6-d7 g7-g8Q Rg1xg8 Kf7xg8
Kd7-e8 Rf5-f6 Ke8-e7) +10.31/18 1} Rg8 {(Rf8-g8 Kg5-h6) -5.76/12 1} 71. Re6
{(Re5-e6 Kd7-d8 Kg5-h6 Rg8-h8+ Kh6-g7 Rh8-h1 Kg7-f7 Rh1-f1+ Re6-f6 Rf1-g1
g6-g7 Kd8-d7 g7-g8Q Rg1-g2 Qg8xg2 Kd7-c7 d5-d6+ Kc7-c8) +10.51/18} Kd8
{(Kd7-d8 Kg5-f6) -6.29/12} 72. Kh6 {(Kg5-h6 Rg8-h8+ Kh6-g7 Rh8-h1 Kg7-f7
Rh1-f1+ Re6-f6 Rf1-g1 g6-g7 Kd8-d7 d5-d6 Kd7-d8 g7-g8R+ Rg1xg8 Kf7xg8
Kd8-d7 Rf6-e6) +11.12/17} Rh8+ {(Rg8-h8+ Kh6-g7) -6.99/11 1} 73. Kg7
{(Kh6-g7 Rh8-h1 Kg7-f7 Kd8-c8 Re6-f6 Kc8-d7 d5-d6 Kd7-c8 g6-g7 Rh1-h7
Kf7-f8 Rh7xg7 Kf8xg7 Kc8-d7 Kg7-g8 Kd7-d8 d6-d7) +11.40/17} Rh5 {(Rh8-h5
Kg7-f6) -8.22/12 1} 74. Kf6 {(Kg7-f6 Rh5-h2 g6-g7 Rh2-f2+ Kf6-g6 Rf2-g2+
Kg6-f7 Rg2-g1 g7-g8Q+ Rg1xg8 Kf7xg8 Kd8-d7 Kg8-f7 Kd7-d8 Re6-g6 Kd8-d7)
+11.60/16 1} Rh2 {(Rh5-h2 g6-g7) -6.94/9 1} 75. g7 {(g6-g7 Rh2-g2 Re6-e5
Kd8-d7 Re5-g5 Rg2xg5 g7-g8Q Rg5xg8 d5-d6) +11.78/15} Rf2+ {(Rh2-f2+ Kf6-g6)
-7.52/9 1} 76. Kg6 {(Kf6-g6 Rf2-g2+ Kg6-h7 Kd8-c7 g7-g8Q Rg2xg8 Kh7xg8
Kc7-d7 Re6-g6 Kd7-c8 d5-d6 Kc8-d7 Rg6-g7+ Kd7-c8 Kg8-f7) +12.81/15 1} Rg2+
{(Rf2-g2+ Kg6-h7) -16.10/9} 77. Kf7 {(Kg6-f7 Kd8-c7 d5-d6+ Kc7-d7 Re6-g6
Rg2-f2+ Rg6-f6 Rf2-g2 g7-g8Q Rg2xg8 Kf7xg8 Kd7-d8 d6-d7 Kd8-c7 d7-d8Q+)
+13.10/15 1} Rf2+ {(Rg2-f2+ Re6-f6) -17.44/9 1} 78. Rf6 {(Re6-f6 Rf2-g2
Rf6-g6 Rg2-f2+ Kf7-e6 Kd8-c7 d5-d6+ Kc7-c6 g7-g8Q Rf2-e2+ Ke6-f6 Re2-f2+
Kf6-e7 Rf2-e2+) +15.25/14 1} Rg2 {(Rf2-g2 Rf6-g6) -17.52/9 Arena
Adjudication} 1-0
[/pgn]

[Witek]

If I put 6 cores, it could help engines of this level by 50-120 ELO. According to the book "Chess on PC" the sparringpartner is supposed to be a bit better, so I'll give it a try against Fizbo. We'll see tomorrow.

My attempt today crashed in the first game after a few moves.

Hi, Unfortunately, Caissa loses 50% of its games by crashing !

What kind of crash? Does it crash on a specific UCI command or position? Did you load Syzygy endgame tables into the engine?
I have found an issue with evaluating certain drawish positions potentially leading to search explosion.