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2023-09-19

Protej dev_20230919a
Protej dev_20230919a: search parameters tuned.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      214   16   16  1400   64%   112   21%
   2 Tucano 9.00                                        175   16   16  1400   59%   112   26%
   3 Cheese 3.1.1                                       122   16   16  1400   51%   112   25%
   4 Protej dev_20230919a                               112    4    4 28000   65%    -6   21%
   5 PeSTO 2.210                                        102   16   16  1400   49%   112   23%
   6 bright-0.4a                                         96   16   16  1400   48%   112   22%
   7 Berserk 3.3.0                                       83   16   16  1400   46%   112   29%
   8 Quazar 0.4 x64                                      55   16   16  1400   42%   112   23%
   9 Cheese 3.0.0                                        54   16   16  1400   42%   112   23%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    41   16   16  1400   40%   112   24%
  11 Spike 1.4                                            7   16   16  1400   35%   112   24%
  12 Leorik 2.3                                         -25   17   17  1400   31%   112   23%
  13 Arminius 2018-12-23                                -32   17   17  1400   30%   112   23%
  14 Pawny 1.2.x64.SSE4.2                               -34   17   17  1400   30%   112   21%
  15 GreKo 2021.06                                      -39   17   17  1400   30%   112   20%
  16 K2 v.0.99                                          -47   17   17  1400   29%   112   21%
  17 odonata v0.6.2                                     -75   17   17  1400   25%   112   20%
  18 Coiled 1.1 x64                                    -159   20   20  1400   17%   112   14%
  19 Devel 3.8.4                                       -187   20   20  1400   14%   112   15%
  20 The Baron 3.44.1 64-bits version                  -204   21   21  1400   13%   112   13%
  21 SmarThink 1.98                                    -258   24   24  1400   11%   112    7%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 28000 W: 15196 L: 6973 D: 5831 Elo: +9 vs Protej dev_20230918a

2023-09-18

Protej dev_20230918a
Protej dev_20230918a: evaluation of attacked, defended and undefended pieces optimized.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      219   16   16  1400   66%   103   21%
   2 Tucano 9.00                                        181   16   16  1400   61%   103   24%
   3 Cheese 3.1.1                                       110   16   16  1400   51%   103   26%
   4 PeSTO 2.210                                        104   16   16  1400   50%   103   21%
   5 Protej dev_20230918a                               103    4    4 28000   64%    -5   21%
   6 Berserk 3.3.0                                      100   15   15  1400   50%   103   30%
   7 bright-0.4a                                         92   16   16  1400   48%   103   23%
   8 Cheese 3.0.0                                        55   16   16  1400   43%   103   25%
   9 Quazar 0.4 x64                                      53   16   16  1400   43%   103   23%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    44   16   16  1400   42%   103   24%
  11 Spike 1.4                                           -6   16   16  1400   35%   103   22%
  12 Pawny 1.2.x64.SSE4.2                               -23   16   16  1400   32%   103   25%
  13 Leorik 2.3                                         -37   17   17  1400   31%   103   23%
  14 Arminius 2018-12-23                                -41   17   17  1400   30%   103   24%
  15 GreKo 2021.06                                      -42   17   17  1400   31%   103   20%
  16 K2 v.0.99                                          -52   17   17  1400   29%   103   22%
  17 odonata v0.6.2                                     -76   17   17  1400   26%   103   20%
  18 Coiled 1.1 x64                                    -152   19   19  1400   19%   103   15%
  19 Devel 3.8.4                                       -179   20   20  1400   15%   103   17%
  20 The Baron 3.44.1 64-bits version                  -214   21   21  1400   13%   103   12%
  21 SmarThink 1.98                                    -236   22   22  1400   13%   103    9%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 28000 W: 14829 L: 7184 D: 5987 Elo: +8 vs Protej 0.6.5

2023-09-12

Protej 0.6.5
New official release: Protej 0.6.5
Non-functional changes: precomputed magics (less code, reduced start time); dynamic scores tuned; "random" command removed; default pawn hash is now 64k slots from 32k (.ini file can overrule this value); ply # is now shown in board; debug: in some positions where a promotion is possible, Syzygy online returns "null" as distance to mate, and "ull" was showed; now it shows 99.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      215   14   14  2000   67%    95   22%
   2 Tucano 9.00                                        173   13   13  2000   61%    95   25%
   3 PeSTO 2.210                                        128   13   13  2000   55%    95   24%
   4 Cheese 3.1.1                                       109   13   13  2000   52%    95   27%
   5 bright-0.4a                                        107   13   13  2000   52%    95   23%
   6 Protej 0.6.5                                        95    3    3 40000   63%    -5   22%
   7 Berserk 3.3.0                                       88   13   13  2000   49%    95   27%
   8 Cheese 3.0.0                                        54   13   13  2000   44%    95   27%
   9 Quazar 0.4 x64                                      54   13   13  2000   44%    95   23%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    39   13   13  2000   42%    95   25%
  11 Spike 1.4                                            3   13   13  2000   37%    95   26%
  12 Leorik 2.3                                         -31   14   14  2000   32%    95   24%
  13 GreKo 2021.06                                      -36   14   14  2000   32%    95   21%
  14 Pawny 1.2.x64.SSE4.2                               -37   14   14  2000   32%    95   23%
  15 Arminius 2018-12-23                                -50   14   14  2000   30%    95   22%
  16 K2 v.0.99                                          -55   14   14  2000   30%    95   22%
  17 odonata v0.6.2                                     -72   14   14  2000   28%    95   20%
  18 Coiled 1.1 x64                                    -160   16   16  2000   18%    95   16%
  19 Devel 3.8.4                                       -173   16   16  2000   17%    95   16%
  20 The Baron 3.44.1 64-bits version                  -203   17   17  2000   15%    95   14%
  21 SmarThink 1.98                                    -249   19   19  2000   12%    95    9%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 40000 W: 20680 L: 10610 D: 8710 Elo: +125 vs Protej 0.6.4
Rank Name           Elo    +    - games score oppo. draws
   1 Protej 0.6.5    74    6    6 10000   70%   -74   30%
   2 Protej 0.6.4   -74    6    6 10000   30%    74   30%
Selfplay vs. Protej 0.6.4, TC=4"+0.1, Little Blitzer testing framework

STC Total: 10000 W: 5550 L: 1491 D: 2959 Elo: +148 vs Protej 0.6.4
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      244   48   48   150   61%   158   20%
   2 Protej 0.6.5                                       158   11   11  3000   71%    -8   24%
   3 Tucano 9.00                                        152   45   45   150   49%   158   37%
   4 Berserk 3.3.0                                      144   45   45   150   48%   158   33%
   5 PeSTO 2.210                                        114   45   45   150   43%   158   35%
   6 bright-0.4a                                         88   46   46   150   40%   158   34%
   7 Quazar 0.4 x64                                      68   47   47   150   37%   158   28%
   8 Spike 1.4                                           27   48   48   150   32%   158   29%
   9 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    24   48   48   150   32%   158   25%
  10 Cheese 3.1.1                                        23   49   49   150   32%   158   21%
  11 Devel 3.8.4                                          5   49   49   150   30%   158   22%
  12 The Baron 3.44.1 64-bits version                     1   49   49   150   28%   158   26%
  13 Cheese 3.0.0                                       -40   51   51   150   24%   158   21%
  14 Arminius 2018-12-23                                -55   51   51   150   22%   158   23%
  15 GreKo 2021.06                                      -77   53   53   150   20%   158   20%
  16 Pawny 1.2.x64.SSE4.2                               -84   53   53   150   19%   158   21%
  17 K2 v.0.99                                          -95   54   54   150   18%   158   21%
  18 Coiled 1.1 x64                                    -105   55   55   150   17%   158   19%
  19 Leorik 2.3                                        -118   56   56   150   15%   158   20%
  20 odonata v0.6.2                                    -147   61   61   150   15%   158   12%
  21 SmarThink 1.98                                    -328   92   92   150    5%   158    5%
Pool of 20 engines, average CCRL rating 2910, TC=2'+1" (CCRL Blitz), Little Blitzer testing framework

LTC Total: 3000 W: 1767 L: 527 D: 706 Elo: 3068

2023-09-10

Protej 0.6.5_dev_k
Protej 0.6.5_dev_k: new compiler version, Delphi 11.3: the executable is slightly faster, smaller and better optimized. No code change.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      213   17   17  1350   66%    95   20%
   2 Tucano 9.00                                        183   16   16  1350   62%    95   25%
   3 Cheese 3.1.1                                       116   16   16  1350   53%    95   26%
   4 PeSTO 2.210                                        109   16   16  1350   52%    95   23%
   5 bright-0.4a                                        108   16   16  1350   52%    95   26%
   6 Protej 0.6.5_dev_k                                  95    4    4 27000   63%    -5   22%
   7 Berserk 3.3.0                                       72   16   16  1350   47%    95   27%
   8 Cheese 3.0.0                                        66   16   16  1350   46%    95   24%
   9 Quazar 0.4 x64                                      43   16   16  1350   43%    95   23%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    30   16   16  1350   41%    95   25%
  11 Spike 1.4                                           -1   16   16  1350   36%    95   25%
  12 Pawny 1.2.x64.SSE4.2                               -16   16   16  1350   34%    95   27%
  13 GreKo 2021.06                                      -27   17   17  1350   33%    95   22%
  14 Leorik 2.3                                         -34   17   17  1350   32%    95   22%
  15 Arminius 2018-12-23                                -51   17   17  1350   30%    95   23%
  16 K2 v.0.99                                          -52   17   17  1350   30%    95   21%
  17 odonata v0.6.2                                     -73   17   17  1350   27%    95   20%
  18 Coiled 1.1 x64                                    -153   19   19  1350   19%    95   16%
  19 Devel 3.8.4                                       -188   20   20  1350   15%    95   16%
  20 The Baron 3.44.1 64-bits version                  -205   21   21  1350   15%    95   13%
  21 SmarThink 1.98                                    -234   23   23  1350   14%    95    9%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 27000 W: 14003 L: 7184 D: 5813 Elo: +7 vs Protej 0.6.5_dev_j

2023-09-09

Protej 0.6.5_dev_j
Protej 0.6.5_dev_j: search parameters tuned.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      234   19   19  1100   70%    88   19%
   2 Tucano 9.00                                        179   18   18  1100   63%    88   23%
   3 PeSTO 2.210                                        107   18   18  1100   53%    88   24%
   4 bright-0.4a                                        107   18   18  1100   53%    88   23%
   5 Cheese 3.1.1                                        99   18   18  1100   52%    88   26%
   6 Protej 0.6.5_dev_j                                  88    4    4 22000   62%    -4   22%
   7 Berserk 3.3.0                                       82   18   18  1100   49%    88   29%
   8 Quazar 0.4 x64                                      60   18   18  1100   46%    88   24%
   9 Cheese 3.0.0                                        56   18   18  1100   45%    88   24%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    37   18   18  1100   43%    88   25%
  11 Spike 1.4                                            8   18   18  1100   38%    88   27%
  12 Leorik 2.3                                         -22   18   18  1100   35%    88   25%
  13 GreKo 2021.06                                      -23   18   18  1100   35%    88   22%
  14 Pawny 1.2.x64.SSE4.2                               -40   19   19  1100   32%    88   22%
  15 Arminius 2018-12-23                                -43   19   19  1100   32%    88   23%
  16 K2 v.0.99                                          -62   19   19  1100   29%    88   23%
  17 odonata v0.6.2                                     -81   19   19  1100   27%    88   21%
  18 Coiled 1.1 x64                                    -170   22   22  1100   18%    88   15%
  19 Devel 3.8.4                                       -185   22   22  1100   16%    88   17%
  20 The Baron 3.44.1 64-bits version                  -198   23   23  1100   16%    88   14%
  21 SmarThink 1.98                                    -234   25   25  1100   15%    88    8%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 22000 W: 11197 L: 6027 D: 4776 Elo: +15 vs Protej 0.6.5_dev_i

2023-09-08

Protej 0.6.5_dev_i
Protej 0.6.5_dev_i: time management improved.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      191   19   19  1100   66%    73   18%
   2 Tucano 9.00                                        169   18   18  1100   63%    73   22%
   3 Cheese 3.1.1                                       112   18   18  1100   55%    73   24%
   4 PeSTO 2.210                                        107   18   18  1100   55%    73   20%
   5 bright-0.4a                                        101   18   18  1100   54%    73   23%
   6 Berserk 3.3.0                                       99   18   18  1100   54%    73   28%
   7 Protej 0.6.5_dev_i                                  73    4    4 22000   60%    -4   21%
   8 Quazar 0.4 x64                                      69   18   18  1100   49%    73   24%
   9 Cheese 3.0.0                                        52   18   18  1100   47%    73   25%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    44   18   18  1100   46%    73   25%
  11 Spike 1.4                                           -1   18   18  1100   39%    73   24%
  12 Pawny 1.2.x64.SSE4.2                               -13   18   18  1100   38%    73   23%
  13 Leorik 2.3                                         -24   18   18  1100   36%    73   24%
  14 GreKo 2021.06                                      -27   18   18  1100   36%    73   22%
  15 Arminius 2018-12-23                                -34   19   19  1100   35%    73   22%
  16 K2 v.0.99                                          -61   19   19  1100   31%    73   23%
  17 odonata v0.6.2                                     -75   19   19  1100   30%    73   20%
  18 Coiled 1.1 x64                                    -171   21   21  1100   19%    73   17%
  19 Devel 3.8.4                                       -179   21   21  1100   18%    73   18%
  20 The Baron 3.44.1 64-bits version                  -192   22   22  1100   17%    73   15%
  21 SmarThink 1.98                                    -240   24   24  1100   15%    73    8%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 22000 W: 10814 L: 6504 D: 4682 Elo: +7 vs Protej 0.6.5_dev_h

2023-09-07

Protej 0.6.5_dev_h
Protej 0.6.5_dev_h: code optimizations in move generation unit.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      218   19   19  1100   70%    66   20%
   2 Tucano 9.00                                        177   18   18  1100   66%    66   23%
   3 Cheese 3.1.1                                       114   18   18  1100   57%    66   25%
   4 Berserk 3.3.0                                      103   18   18  1100   55%    66   26%
   5 PeSTO 2.210                                        103   18   18  1100   55%    66   25%
   6 bright-0.4a                                         87   18   18  1100   53%    66   24%
   7 Quazar 0.4 x64                                      70   18   18  1100   51%    66   21%
   8 Protej 0.6.5_dev_h                                  66    4    4 22000   59%    -3   22%
   9 Cheese 3.0.0                                        57   18   18  1100   49%    66   24%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    40   18   18  1100   46%    66   24%
  11 Spike 1.4                                           -1   18   18  1100   40%    66   23%
  12 Leorik 2.3                                         -20   18   18  1100   38%    66   24%
  13 Pawny 1.2.x64.SSE4.2                               -25   18   18  1100   37%    66   23%
  14 GreKo 2021.06                                      -34   18   18  1100   36%    66   23%
  15 Arminius 2018-12-23                                -42   18   18  1100   35%    66   25%
  16 K2 v.0.99                                          -55   19   19  1100   33%    66   23%
  17 odonata v0.6.2                                     -68   19   19  1100   32%    66   21%
  18 Coiled 1.1 x64                                    -168   21   21  1100   21%    66   16%
  19 The Baron 3.44.1 64-bits version                  -194   22   22  1100   18%    66   14%
  20 Devel 3.8.4                                       -199   22   22  1100   17%    66   16%
  21 SmarThink 1.98                                    -228   24   24  1100   16%    66   10%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 22000 W: 10564 L: 6700 D: 4736 Elo: +2 vs Protej 0.6.5_dev_g

2023-09-06

Protej 0.6.5_dev_g
Protej 0.6.5_dev_g: quiescence search updated.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      221   20   20  1000   71%    64   18%
   2 Tucano 9.00                                        170   19   19  1000   65%    64   22%
   3 Cheese 3.1.1                                       131   19   19  1000   59%    64   23%
   4 bright-0.4a                                        112   19   19  1000   57%    64   21%
   5 PeSTO 2.210                                        102   19   19  1000   55%    64   23%
   6 Berserk 3.3.0                                       72   19   19  1000   51%    64   27%
   7 Protej 0.6.5_dev_g                                  64    4    4 20000   59%    -3   21%
   8 Quazar 0.4 x64                                      61   19   19  1000   50%    64   22%
   9 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    51   19   19  1000   48%    64   24%
  10 Cheese 3.0.0                                        49   19   19  1000   48%    64   25%
  11 Spike 1.4                                           13   19   19  1000   43%    64   24%
  12 Leorik 2.3                                         -19   19   19  1000   38%    64   23%
  13 GreKo 2021.06                                      -30   19   19  1000   37%    64   24%
  14 Pawny 1.2.x64.SSE4.2                               -36   19   19  1000   36%    64   24%
  15 K2 v.0.99                                          -45   19   19  1000   35%    64   22%
  16 Arminius 2018-12-23                                -52   20   20  1000   34%    64   21%
  17 odonata v0.6.2                                     -81   20   20  1000   30%    64   22%
  18 Coiled 1.1 x64                                    -164   22   22  1000   21%    64   16%
  19 Devel 3.8.4                                       -186   23   23  1000   19%    64   16%
  20 The Baron 3.44.1 64-bits version                  -196   23   23  1000   17%    64   17%
  21 SmarThink 1.98                                    -236   25   25  1000   16%    64   10%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 20000 W: 9591 L: 6167 D: 4242 Elo: +9 vs Protej 0.6.5_dev_f

2023-09-05

Protej 0.6.5_dev_f
Protej 0.6.5_dev_f: history pruning tuned.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      221   19   19  1100   72%    55   19%
   2 Tucano 9.00                                        178   19   19  1100   67%    55   23%
   3 bright-0.4a                                        124   18   18  1100   60%    55   23%
   4 Cheese 3.1.1                                       117   18   18  1100   59%    55   24%
   5 PeSTO 2.210                                        116   18   18  1100   58%    55   21%
   6 Berserk 3.3.0                                      115   18   18  1100   59%    55   28%
   7 Cheese 3.0.0                                        58   18   18  1100   51%    55   27%
   8 Protej 0.6.5_dev_f                                  55    4    4 22000   57%    -3   22%
   9 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    38   18   18  1100   48%    55   26%
  10 Quazar 0.4 x64                                      38   18   18  1100   48%    55   23%
  11 Spike 1.4                                          -11   18   18  1100   41%    55   24%
  12 Leorik 2.3                                         -12   18   18  1100   40%    55   25%
  13 Pawny 1.2.x64.SSE4.2                               -16   18   18  1100   40%    55   22%
  14 Arminius 2018-12-23                                -33   18   18  1100   38%    55   25%
  15 GreKo 2021.06                                      -36   18   18  1100   37%    55   24%
  16 K2 v.0.99                                          -71   19   19  1100   33%    55   22%
  17 odonata v0.6.2                                     -78   19   19  1100   32%    55   22%
  18 Coiled 1.1 x64                                    -182   21   21  1100   20%    55   17%
  19 The Baron 3.44.1 64-bits version                  -193   21   21  1100   19%    55   15%
  20 Devel 3.8.4                                       -200   21   21  1100   18%    55   17%
  21 SmarThink 1.98                                    -230   23   23  1100   17%    55   11%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 22000 W: 10186 L: 7008 D: 4806 Elo: +3 vs Protej 0.6.5_dev_e

2023-09-04

Protej 0.6.5_dev_e
Protej 0.6.5_dev_e: passed pawns evaluation tuned.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      219   21   21  1000   72%    52   18%
   2 Tucano 9.00                                        164   19   19  1000   66%    52   26%
   3 Cheese 3.1.1                                       129   19   19  1000   61%    52   25%
   4 PeSTO 2.210                                        127   19   19  1000   60%    52   20%
   5 Berserk 3.3.0                                      114   19   19  1000   59%    52   28%
   6 bright-0.4a                                        100   19   19  1000   57%    52   24%
   7 Quazar 0.4 x64                                      65   19   19  1000   52%    52   21%
   8 Cheese 3.0.0                                        56   19   19  1000   51%    52   21%
   9 Protej 0.6.5_dev_e                                  52    4    4 20000   57%    -3   21%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    26   19   19  1000   46%    52   23%
  11 Spike 1.4                                            9   19   19  1000   44%    52   23%
  12 GreKo 2021.06                                      -16   19   19  1000   40%    52   23%
  13 Leorik 2.3                                         -20   19   19  1000   40%    52   26%
  14 Pawny 1.2.x64.SSE4.2                               -35   19   19  1000   38%    52   24%
  15 Arminius 2018-12-23                                -47   19   19  1000   36%    52   21%
  16 K2 v.0.99                                          -71   20   20  1000   33%    52   23%
  17 odonata v0.6.2                                     -75   20   20  1000   32%    52   22%
  18 Coiled 1.1 x64                                    -170   22   22  1000   22%    52   15%
  19 Devel 3.8.4                                       -180   22   22  1000   20%    52   20%
  20 The Baron 3.44.1 64-bits version                  -198   23   23  1000   19%    52   16%
  21 SmarThink 1.98                                    -250   25   25  1000   15%    52   10%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 20000 W: 9223 L: 6486 D: 4291 Elo: +9 vs Protej 0.6.5_dev_d

2023-09-01

Protej 0.6.5_dev_d
Protej 0.6.5_dev_d: hash table constants optimized. Non-functional change, exe size is reduced.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      211   17   17  1500   72%    43   16%
   2 Tucano 9.00                                        181   16   16  1500   69%    43   22%
   3 bright-0.4a                                        122   16   16  1500   61%    43   21%
   4 Cheese 3.1.1                                       113   15   15  1500   60%    43   26%
   5 PeSTO 2.210                                         97   16   16  1500   58%    43   20%
   6 Berserk 3.3.0                                       87   15   15  1500   56%    43   25%
   7 Quazar 0.4 x64                                      69   16   16  1500   54%    43   22%
   8 Cheese 3.0.0                                        63   15   15  1500   53%    43   25%
   9 Protej 0.6.5_dev_d                                  43    4    4 30000   56%    -2   21%
  10 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    34   15   15  1500   49%    43   22%
  11 Spike 1.4                                           18   15   15  1500   47%    43   23%
  12 Leorik 2.3                                         -20   16   16  1500   41%    43   23%
  13 Pawny 1.2.x64.SSE4.2                               -23   16   16  1500   41%    43   24%
  14 Arminius 2018-12-23                                -27   16   16  1500   40%    43   23%
  15 GreKo 2021.06                                      -37   16   16  1500   39%    43   22%
  16 K2 v.0.99                                          -45   16   16  1500   38%    43   24%
  17 odonata v0.6.2                                     -85   16   16  1500   32%    43   21%
  18 Coiled 1.1 x64                                    -169   18   18  1500   23%    43   16%
  19 The Baron 3.44.1 64-bits version                  -196   18   18  1500   20%    43   15%
  20 Devel 3.8.4                                       -203   18   18  1500   19%    43   17%
  21 SmarThink 1.98                                    -234   20   20  1500   17%    43   11%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 30000 W: 13544 L: 10191 D: 6265 Elo: -1 vs Protej 0.6.5_dev_c

2023-08-29

Protej 0.6.5_dev_c
Protej 0.6.5_dev_c: late move reductions code reengineered and values tuned.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      215   18   18  1299   73%    44   18%
   2 Tucano 9.00                                        172   17   17  1299   67%    44   21%
   3 bright-0.4a                                        131   17   17  1299   62%    44   22%
   4 Cheese 3.1.1                                       116   17   17  1301   60%    44   24%
   5 PeSTO 2.210                                        102   17   17  1300   58%    44   21%
   6 Berserk 3.3.0                                       86   16   16  1299   56%    44   26%
   7 Quazar 0.4 x64                                      64   17   17  1300   53%    44   23%
   8 Cheese 3.0.0                                        56   17   17  1299   52%    44   24%
   9 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    55   17   17  1301   51%    44   23%
  10 Protej 0.6.5_dev_c                                  44    4    4 26000   56%    -2   21%
  11 Spike 1.4                                           -1   17   17  1300   44%    44   22%
  12 Leorik 2.3                                         -22   17   17  1301   41%    44   22%
  13 Pawny 1.2.x64.SSE4.2                               -24   17   17  1300   40%    44   23%
  14 GreKo 2021.06                                      -34   17   17  1301   39%    44   21%
  15 Arminius 2018-12-23                                -36   17   17  1299   39%    44   23%
  16 K2 v.0.99                                          -62   17   17  1301   35%    44   23%
  17 odonata v0.6.2                                     -67   17   17  1299   35%    44   22%
  18 Coiled 1.1 x64                                    -166   19   19  1301   23%    44   16%
  19 Devel 3.8.4                                       -180   19   19  1301   21%    44   18%
  20 The Baron 3.44.1 64-bits version                  -208   20   20  1300   19%    44   14%
  21 SmarThink 1.98                                    -242   22   22  1300   17%    44   10%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 26000 W: 11809 L: 8776 D: 5415 Elo: +39 vs Protej 0.6.5_dev_b

2023-08-28

Protej 0.6.5_dev_b
Protej 0.6.5_dev_b: null move reduction code reengineered.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      227   25   25   770   78%     5   14%
   2 Tucano 9.00                                        175   24   24   770   73%     5   18%
   3 bright-0.4a                                        123   23   23   770   66%     5   20%
   4 Cheese 3.1.1                                       113   22   22   770   65%     5   22%
   5 PeSTO 2.210                                        104   23   23   770   63%     5   17%
   6 Berserk 3.3.0                                       87   22   22   770   62%     5   27%
   7 Quazar 0.4 x64                                      58   22   22   770   58%     5   22%
   8 Cheese 3.0.0                                        50   22   22   770   56%     5   23%
   9 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    50   22   22   770   56%     5   23%
  10 Protej 0.6.5_dev_b                                   5    5    5 15400   51%     0   20%
  11 Spike 1.4                                            3   22   22   770   50%     5   23%
  12 Leorik 2.3                                         -17   22   22   770   47%     5   23%
  13 Pawny 1.2.x64.SSE4.2                               -21   22   22   770   46%     5   22%
  14 GreKo 2021.06                                      -37   22   22   770   44%     5   20%
  15 Arminius 2018-12-23                                -40   22   22   770   44%     5   23%
  16 K2 v.0.99                                          -46   22   22   770   43%     5   22%
  17 odonata v0.6.2                                     -70   22   22   770   39%     5   21%
  18 Coiled 1.1 x64                                    -155   24   24   770   29%     5   17%
  19 Devel 3.8.4                                       -191   24   24   770   24%     5   18%
  20 The Baron 3.44.1 64-bits version                  -193   24   24   770   24%     5   19%
  21 SmarThink 1.98                                    -227   26   26   770   22%     5   11%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 15400 W: 6220 L: 6046 D: 3134 Elo: +3 vs Protej 0.6.5_dev_a

2023-08-27

Protej 0.6.5_dev_a
Protej 0.6.5_dev_a: piece-square table code optimized and values tuned.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      206   19   19  1340   77%     2   17%
   2 Tucano 9.00                                        177   18   18  1340   73%     2   20%
   3 Cheese 3.1.1                                       114   17   17  1340   66%     2   22%
   4 PeSTO 2.210                                        110   17   17  1340   65%     2   18%
   5 bright-0.4a                                        109   17   17  1340   65%     2   19%
   6 Berserk 3.3.0                                       81   16   16  1340   61%     2   25%
   7 Quazar 0.4 x64                                      73   17   17  1340   60%     2   20%
   8 Cheese 3.0.0                                        71   17   17  1340   60%     2   23%
   9 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    43   16   16  1340   56%     2   22%
  10 Spike 1.4                                            7   16   16  1340   51%     2   23%
  11 Protej 0.6.5_dev_a                                   2    4    4 26800   50%     0   21%
  12 Leorik 2.3                                          -6   17   17  1340   49%     2   20%
  13 Pawny 1.2.x64.SSE4.2                               -22   16   16  1340   47%     2   26%
  14 GreKo 2021.06                                      -22   16   16  1340   47%     2   24%
  15 Arminius 2018-12-23                                -43   16   16  1340   44%     2   22%
  16 K2 v.0.99                                          -44   16   16  1340   44%     2   23%
  17 odonata v0.6.2                                     -58   17   17  1340   42%     2   22%
  18 Coiled 1.1 x64                                    -175   18   18  1340   26%     2   18%
  19 Devel 3.8.4                                       -189   18   18  1340   25%     2   19%
  20 The Baron 3.44.1 64-bits version                  -193   18   18  1340   24%     2   20%
  21 SmarThink 1.98                                    -241   20   20  1340   21%     2   11%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 26800 W: 10619 L: 10616 D: 5565 Elo: +32 vs Protej 0.6.4

2023-08-06
Testing of Protej 0.6.4 with a new pool of engines as a reference for the next version. Engines were chosen for they reliability, correct behavior at ultrabullet speed, absence of time losses, illegal moves, crashes.
Rank Name                                               Elo    +    - games score oppo. draws
   1 Mr Bob v1.1.0                                      175   16   16  2000   76%   -30   13%
   2 Tucano 9.00                                        144   14   14  2200   73%   -30   15%
   3 Cheese 3.1.1                                       119   14   14  2200   70%   -30   18%
   4 bright-0.4a                                        113   14   14  2200   70%   -30   18%
   5 PeSTO 2.210                                         99   14   14  2200   67%   -30   14%
   6 Berserk 3.3.0                                       81   14   14  2100   66%   -30   21%
   7 Cheese 3.0.0                                        76   14   14  2200   65%   -30   18%
   8 Quazar 0.4 x64                                      47   13   13  2200   61%   -30   17%
   9 Daydreamer 2.0.0-pre2 (2.0.0-pre2-dirty-97e5c32)    42   13   13  2200   60%   -30   19%
  10 Spike 1.4                                           11   13   13  2200   56%   -30   20%
  11 GreKo 2021.06                                       -9   13   13  2200   53%   -30   20%
  12 Pawny 1.2.x64.SSE4.2                                -9   13   13  2200   53%   -30   20%
  13 Leorik 2.3                                         -19   13   13  2200   52%   -30   21%
  14 Arminius 2018-12-23                                -28   13   13  2100   50%   -30   20%
  15 Protej 0.6.4                                       -30    3    3 43600   46%     1   18%
  16 K2 v.0.99                                          -50   13   13  2200   47%   -30   19%
  17 odonata v0.6.2                                     -69   13   13  2200   44%   -30   19%
  18 Coiled 1.1 x64                                    -144   14   14  2200   34%   -30   16%
  19 Devel 3.8.4                                       -171   14   14  2200   30%   -30   19%
  20 SmarThink 1.98                                    -187   15   15  2200   30%   -30    9%
  21 The Baron 3.44.1 64-bits version                  -190   14   14  2200   28%   -30   17%
Pool of 20 engines, average CCRL rating 2910, TC=4"+0.1, Little Blitzer testing framework

STC Total: 43600 W: 16133 L: 19768 D: 7699 Elo: 0 (reference)

Acknowledgements

Ciro Vignotto, friend of mine and historical tester with his WOCT tournaments, who introduced me into the chess engines world around the year 2002.
Bob Hyatt, Crafty's author, whose intro text in main.c is a bible: studying it gives great insights on what a chess engine should do.
Graham Banks, a great tester, CCRL founder, always friendly and helpful, and all other historical testers like Olivier deVille, Leo Dijksman, Claude Dubois. They tested many Protej versions helping me with its development.
Fabio Cavicchio, Delfi's author, who allowed me to operate his program in WCCC 2006 held in Turin, where I met Anthony Cozzie, Amir Ban and Shay Bushinsky, Vasik Rajlich, Stefan Meyer-Kahlen among top class authors.
Together with Fabio, italian authors I met in many live engine tournaments, like Alessandro Scotti, Carmelo Calzerano, Stefano Malloggi, Ubaldo Andrea Farina and many others I'm forgetting. Spending a lot of time with them talking about chess programming was very instructive.
Chess utilities authors, like WinBoard, Cutechess, Banksia, Bayeselo and many many others, essential tools to succesfully develop and test chess engines.
Very helpful experts like Amanj Sherwany, Doruk Sekercioglu, Jay Honnold, Lars Hallerstrom, met in CCRL live chats.
Günther Simon's RWBC, Talkchess forum, Chess Programming WIKI, just to cite some of the hundreds of helpful websites around.
Embarcadero and previously Borland for having produced Delphi, the framework on which Protej is developed.
And last but not least, everyone who downloaded, tested and played with Protej. Thanks to all!