Author: Andreas Stabel
Date: 06:46:01 01/08/99
Here are some statistics from parsing Dann Corbits game collection. Read the five files A.PGN, B.PGN, C.PGN, D.PGN and E.PGN. The files had a total of 25458158 lines and 945950820 bytes giving an average of 37 bytes per line. Read a total of 1496327 games with 112004996 moves including variations, giving an average of 8.45 bytes per move. There were 6605 variations (left parentesises) containing 63879 moves. Excluding the variations there were 111941117 moves giving rise to 113437444 positions, including the start position, with a total of 3545011178 legal moves giving an average of 31.25 legal moves in an average position. The 111941117 moves was: Pawn moves : (27.15%) 30386622 Knight moves : (18.23%) 20403265 Bishop moves : (15.86%) 17748466 Rook moves : (18.24%) 20418343 (including castlings) Queen moves : (11.97%) 13403989 King moves : (10.89%) 12190285 (including castlings) Short castlings: ( 2.09%) 2337283 Long castlings : ( 0.24%) 272570 Checking moves : ( 4.98%) 5571618 (including mating moves) Mating moves : ( 0.04%) 48748 Stalemating moves : ( 0.001%) 986 Hit moves : (20.65%) 23116992 (including en passant moves) En passant moves : ( 0.08%) 86830 Pawn two moves : ( 7.59%) 8494513 Promotion to queen : ( 0.07%) 82298 Promotion to rook : ( 0.0008%) 839 Promotion to bishop: ( 0.0003%) 281 Promotion to knight: ( 0.001%) 1519 Results of the 1496327 games were: White won: (38.70%) 579064 Drawn : (29.89%) 447291 Black won: (29.11%) 435569 Unknown : ( 2.30%) 34403 Decided games: White mated : ( 1.42%) 21259 White stalemated: ( 0.03%) 479 Black mated : ( 1.84%) 27489 Black stalemated: ( 0.03%) 507 The longest game was 549 halfmoves long. Got max 92 legal moves in a position. Got max number of nested variations = 10. Here is a list of how many games with different lengths: F.ex. 1: 20 means there were 20 games of length one halfmove. 1: 20, 2: 82, 3: 135, 4: 158, 5: 292, 6: 281 7: 357, 8: 393, 9: 602, 10: 637, 11: 916, 12: 979 13: 1296, 14: 1375, 15: 1897, 16: 1925, 17: 2714, 18: 2561 19: 3856, 20: 3864, 21: 4422, 22: 4147, 23: 5254, 24: 4910 25: 5808, 26: 5147, 27: 6758, 28: 5968, 29: 7793, 30: 7049 31: 8471, 32: 7514, 33: 9782, 34: 9502, 35: 10906, 36: 8722 37: 12009, 38: 9643, 39: 13469, 40: 10920, 41: 14404, 42: 11257 43: 15066, 44: 11934, 45: 16134, 46: 12624, 47: 17388, 48: 13524 49: 18272, 50: 35384, 51: 18827, 52: 14623, 53: 19479, 54: 15323 55: 20115, 56: 15723, 57: 20408, 58: 16462, 59: 21763, 60: 18308 61: 21496, 62: 17272, 63: 21525, 64: 17224, 65: 21362, 66: 17784 67: 20704, 68: 17184, 69: 21103, 70: 18003, 71: 20489, 72: 17673 73: 20274, 74: 17281, 75: 19780, 76: 16785, 77: 19572, 78: 17849 79: 22519, 80: 28933, 81: 32165, 82: 22875, 83: 22119, 84: 16773 85: 17508, 86: 14278, 87: 15255, 88: 12999, 89: 13996, 90: 12577 91: 13266, 92: 11740, 93: 12525, 94: 10768, 95: 11762, 96: 10577 97: 10960, 98: 9797, 99: 10571, 100: 10409, 101: 10576, 102: 9223 103: 9458, 104: 8370, 105: 8775, 106: 7927, 107: 8453, 108: 7558 109: 7845, 110: 6975, 111: 7552, 112: 7307, 113: 7750, 114: 6769 115: 6853, 116: 6077, 117: 6046, 118: 5692, 119: 6329, 120: 8678 121: 7140, 122: 5768, 123: 5530, 124: 4648, 125: 4633, 126: 4086 127: 4179, 128: 3619, 129: 3728, 130: 3406, 131: 3495, 132: 3052 133: 3069, 134: 2805, 135: 2868, 136: 2599, 137: 2638, 138: 2417 139: 2396, 140: 2250, 141: 2173, 142: 2054, 143: 1999, 144: 1994 145: 2142, 146: 1711, 147: 1736, 148: 1559, 149: 1634, 150: 1514 151: 1378, 152: 1267, 153: 1245, 154: 1179, 155: 1134, 156: 1062 157: 1031, 158: 979, 159: 1036, 160: 1391, 161: 990, 162: 870 163: 796, 164: 686, 165: 700, 166: 609, 167: 637, 168: 573 169: 531, 170: 465, 171: 507, 172: 493, 173: 471, 174: 447 175: 406, 176: 455, 177: 442, 178: 409, 179: 398, 180: 377 181: 330, 182: 297, 183: 261, 184: 267, 185: 271, 186: 247 187: 257, 188: 244, 189: 294, 190: 271, 191: 189, 192: 212 193: 183, 194: 188, 195: 182, 196: 188, 197: 159, 198: 143 199: 200, 200: 286, 201: 237, 202: 141, 203: 155, 204: 115 205: 130, 206: 94, 207: 93, 208: 114, 209: 134, 210: 110 211: 90, 212: 85, 213: 93, 214: 88, 215: 93, 216: 77 217: 102, 218: 58, 219: 61, 220: 49, 221: 63, 222: 64 223: 75, 224: 64, 225: 60, 226: 54, 227: 63, 228: 54 229: 49, 230: 47, 231: 43, 232: 48, 233: 33, 234: 47 235: 36, 236: 45, 237: 35, 238: 39, 239: 37, 240: 65 241: 49, 242: 30, 243: 28, 244: 29, 245: 37, 246: 32 247: 30, 248: 17, 249: 31, 250: 26, 251: 18, 252: 29 253: 22, 254: 22, 255: 24, 256: 24, 257: 20, 258: 24 259: 28, 260: 22, 261: 26, 262: 12, 263: 17, 264: 15 265: 14, 266: 17, 267: 13, 268: 19, 269: 12, 270: 13 271: 8, 272: 14, 273: 18, 274: 11, 275: 18, 276: 14 277: 9, 278: 13, 279: 6, 280: 9, 281: 6, 282: 7 283: 6, 284: 8, 285: 10, 286: 7, 287: 9, 288: 8 289: 7, 290: 12, 291: 6, 292: 9, 293: 4, 294: 4 295: 6, 296: 3, 298: 5, 299: 7, 300: 18, 301: 12 302: 6, 303: 6, 304: 5, 305: 3, 306: 6, 307: 10 308: 4, 309: 9, 310: 11, 311: 4, 312: 7, 313: 1 314: 1, 315: 4, 316: 4, 317: 2, 318: 2, 319: 4 320: 3, 321: 5, 322: 4, 323: 2, 324: 7, 325: 3 326: 8, 327: 6, 328: 5, 329: 3, 330: 4, 331: 2 332: 2, 333: 1, 334: 7, 335: 2, 336: 2, 337: 2 338: 1, 339: 2, 340: 1, 341: 3, 342: 1, 343: 1 344: 1, 345: 1, 346: 1, 349: 1, 350: 2, 351: 4 353: 2, 354: 3, 355: 3, 356: 2, 357: 1, 358: 2 359: 4, 360: 7, 361: 5, 365: 1, 366: 1, 367: 1 368: 2, 377: 1, 381: 2, 382: 1, 383: 1, 384: 2 385: 1, 388: 2, 391: 2, 394: 2, 399: 1, 400: 5 401: 2, 403: 2, 405: 1, 421: 1, 475: 1, 484: 1 494: 1, 513: 1, 549: 1
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