More stats - Githubissues

This patch adds some more statistics gatherers. For what was added see the changes in the docs.
Sample output.
w:\nnue\temp_sample>stockfish.exe
Stockfish 050421 by the Stockfish developers (see AUTHORS file)
info string Loaded eval file nn-c3ca321c51c9.nnue
gather_statistics input_file in.binpack max_count 1000000 all
Processed 1000000 positions.
Finished gathering statistics.

Results:

Number of positions: 1000000
White king squares:
      56       91      108      161       76       58       92       66
     219      444      458      330      370      427      381      253
     381      913      985     1148      975     1206     1112      742
     652     1385     1838     2315     2821     2379     2347     1533
     999     2135     3306     4876     6341     6626     6148     2967
    1783     3710     6094     9370    12712    18852    17023     9911
    3743     7175    10719    13207    23937    33370    59304    45464
    3168    17536    26086     9224   185885    29670   346806    45531

Black king squares:
    3121    16996    24401     9067   189706    32299   349479    45705
    4272     6639    10187    13289    24163    33207    58849    42925
    1526     3568     5437     9352    12563    18061    16233     9944
     806     2030     3235     4626     6658     6790     5597     3129
     632     1476     1895     2438     2644     2846     2651     1431
     207      881     1015      850     1044     1108     1077      777
     129      510      398      336      352      285      391      240
      13       45       95       75       79       66       87       67

White move from squares:
    1403     1184     1293     1332     1142      780      654      708
    2618     2982     2931     2298     1892     1699     1245     1307
    3089     3363     3832     3912     2994     2295     2011     2130
    4528     6847     5108     6447     7277     4372     5682     3834
    7633     6195    11675    11994    11339    10609     6512     6352
    8141     8647    15138    12885    13778    20288     9436     7471
    8009    12898    13067    18476    18737    14170    15789    11081
   12750    13334    17688    19853    20448    22731    16829     5709

Black move from squares:
   12626    13040    18004    20103    20111    22517    16565     5829
    8007    12848    12523    18162    18957    14084    15920    10711
    7584     8650    14940    12304    13412    19963     9287     7624
    7496     6118    11092    11858    11058    10514     6474     6433
    4380     6712     5149     6458     7016     4330     5966     4017
    2952     3337     3789     3679     2956     2240     2108     2158
    2414     2951     2778     2306     1869     1668     1313     1212
    1376     1203     1316     1301     1102      833      648      798

White move to squares:
    2191     1799     2412     2711     2010     1775      949     1033
    3471     4191     4096     3994     3313     2896     2472     1868
    4649     5364     6873     6659     5716     5470     3946     3449
    6946    10239     9500    13362    13959     8431     9019     6154
    9363     9515    14254    16178    15865    13669    10540     9566
    7713     9345    14665    12152    13330    19828     9894     8319
    2829     7020     8803    16047    15790     9130    11242     4962
    5223     7708    10045    11243    10939     9015     5602    12140

Black move to squares:
    5062     7755    10225    11085    10698     9305     5697    12163
    2781     6706     8519    16072    15938     8688    11127     4856
    7437     9477    14199    11979    13414    19147     9501     8170
    9543     9806    13646    15614    15686    13991    10343     9558
    6715    10020     9552    13263    13450     8301     9343     6384
    4562     5201     6674     6309     5651     5415     4026     3487
    3246     4253     3848     3996     3261     2891     2530     1797
    2182     1826     2334     2614     1945     1764      976     1145

Total moves: 1000000
Normal moves: 979217
Capture moves: 243422
Promotion moves: 1570
Castling moves: 18524
En-passant moves: 689
Pawn moves: 225437
Knight moves: 160522
Bishop moves: 151871
Rook moves: 204428
Queen moves: 116487
King moves: 141255
Number of positions with 32 pieces: 79878
Number of positions with 31 pieces: 16983
Number of positions with 30 pieces: 75179
Number of positions with 29 pieces: 24274
Number of positions with 28 pieces: 61522
Number of positions with 27 pieces: 28426
Number of positions with 26 pieces: 51301
Number of positions with 25 pieces: 32300
Number of positions with 24 pieces: 44402
Number of positions with 23 pieces: 33423
Number of positions with 22 pieces: 41378
Number of positions with 21 pieces: 34822
Number of positions with 20 pieces: 39037
Number of positions with 19 pieces: 35958
Number of positions with 18 pieces: 37300
Number of positions with 17 pieces: 36655
Number of positions with 16 pieces: 37145
Number of positions with 15 pieces: 36672
Number of positions with 14 pieces: 35713
Number of positions with 13 pieces: 35742
Number of positions with 12 pieces: 35123
Number of positions with 11 pieces: 34639
Number of positions with 10 pieces: 32817
Number of positions with 9 pieces: 30631
Number of positions with 8 pieces: 23160
Number of positions with 7 pieces: 14313
Number of positions with 6 pieces: 4861
Number of positions with 5 pieces: 3655
Number of positions with 4 pieces: 2408
Number of positions with 3 pieces: 283
Number of positions with 2 pieces: 0
Number of positions with 1 pieces: 0
Number of positions with 0 pieces: 0
I think this closes #304 , more feature requests for this can of course be made.
nodchip / Stockfish

More stats #319
