7-men Syzygy attempt

Discussion of chess software programming and technical issues.

Moderators: hgm, Rebel, chrisw

Dann Corbit
Posts: 12537
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: 7-men Syzygy attempt

Post by Dann Corbit »

Maybe

Code: Select all

struct tb_handle *open_tb(char *tablename, int wdl)
{
    char name[FILENAME_MAX+64]={0};
    struct tb_handle *H = malloc(sizeof(struct tb_handle));

    char *dirptr = getenv(wdl ? WDLDIR : DTZDIR);
    size_t dirlen = dirptr ? strlen(dirptr) : 0;
    if &#40;use_envdirs && dirlen < sizeof name&#41;
        strcpy&#40;name, dirptr&#41;;
    else
        strcpy&#40;name, ".");
    strcat&#40;name, "/");
    assert&#40;dirlen + 2 + 3 + strlen&#40;name&#41; < FILENAME_MAX&#41;;
    strcat&#40;name, tablename&#41;;
    strcat&#40;name, wdl ? WDLSUFFIX &#58; DTZSUFFIX&#41;;
    if (!&#40;H->F = fopen&#40;name, "rb"))) &#123;
        fprintf&#40;stderr, "Could not open %s for reading.\n", name&#41;;
        exit&#40;1&#41;;
    &#125;
    H->data = &#40;ubyte *&#41;map_file&#40;name, 1, &&#40;H->data_size&#41;);
    H->wdl = wdl;

    return H;
&#125;
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
Ras
Posts: 2487
Joined: Tue Aug 30, 2016 8:19 pm
Full name: Rasmus Althoff

Re: 7-men Syzygy attempt

Post by Ras »

Dann Corbit wrote:Maybe
This code has guards, but the master on Github doesn't.
https://github.com/syzygy1/tb/blob/mast ... e/tbcore.c :

Code: Select all

static FD open_tb&#40;const char *str, const char *suffix&#41;
&#123;
  int i;
  FD fd;
  char file&#91;256&#93;;

  for &#40;i = 0; i < num_paths; i++) &#123;
    strcpy&#40;file, paths&#91;i&#93;);
    strcat&#40;file, "/");
    strcat&#40;file, str&#41;;
    strcat&#40;file, suffix&#41;;
#ifndef __WIN32__
    fd = open&#40;file, O_RDONLY&#41;;
#else
    fd = CreateFile&#40;file, GENERIC_READ, FILE_SHARE_READ, NULL,
			  OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL&#41;;
#endif
    if &#40;fd != FD_ERR&#41; return fd;
  &#125;
  return FD_ERR;
&#125;
noobpwnftw
Posts: 560
Joined: Sun Nov 08, 2015 11:10 pm

Re: 7-men Syzygy attempt

Post by noobpwnftw »

Code: Select all

########## KRBNvKQN ##########

White to move&#58;

82339643740 positions win in 1 ply.
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91421711080 positions are wins.
29700422 positions are cursed wins.
49153557962 positions are draws.
18111210425 positions are cursed losses.
70036077151 positions are losses.

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2267 positions lose in 563 ply.
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2504 positions lose in 565 ply.
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735 positions lose in 573 ply.
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57370 positions lose in 978 ply.
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23942 positions lose in 986 ply.
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11697 positions lose in 992 ply.
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6178 positions lose in 998 ply.
5275 positions lose in 1000 ply.
3923 positions lose in 1002 ply.
2937 positions lose in 1004 ply.
2126 positions lose in 1006 ply.
1801 positions lose in 1008 ply.
1256 positions lose in 1010 ply.
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867 positions lose in 1014 ply.
885 positions lose in 1016 ply.
795 positions lose in 1018 ply.
637 positions lose in 1020 ply.
443 positions lose in 1022 ply.
281 positions lose in 1024 ply.
78 positions lose in 1026 ply.
18 positions lose in 1028 ply.
18 positions lose in 1030 ply.
15 positions lose in 1032 ply.
24 positions lose in 1034 ply.

Black to move&#58;

119230462337 positions win in 1 ply.
196660877 positions win in 2 ply.
23625670477 positions win in 3 ply.
76749697 positions win in 4 ply.
7942952489 positions win in 5 ply.
54384918 positions win in 6 ply.
4900988080 positions win in 7 ply.
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3606633904 positions win in 9 ply.
42532929 positions win in 10 ply.
2833749100 positions win in 11 ply.
39358172 positions win in 12 ply.
2297418597 positions win in 13 ply.
35799242 positions win in 14 ply.
1884375188 positions win in 15 ply.
31398780 positions win in 16 ply.
1540470352 positions win in 17 ply.
26470590 positions win in 18 ply.
1249581523 positions win in 19 ply.
21674891 positions win in 20 ply.
1009673685 positions win in 21 ply.
17531058 positions win in 22 ply.
819083921 positions win in 23 ply.
14255315 positions win in 24 ply.
671070241 positions win in 25 ply.
11685069 positions win in 26 ply.
556851578 positions win in 27 ply.
9688947 positions win in 28 ply.
468238278 positions win in 29 ply.
8164867 positions win in 30 ply.
398777564 positions win in 31 ply.
6966683 positions win in 32 ply.
343680209 positions win in 33 ply.
5987356 positions win in 34 ply.
299502929 positions win in 35 ply.
5184306 positions win in 36 ply.
263491903 positions win in 37 ply.
4500127 positions win in 38 ply.
233833549 positions win in 39 ply.
3931628 positions win in 40 ply.
209173457 positions win in 41 ply.
3468808 positions win in 42 ply.
188530568 positions win in 43 ply.
3078637 positions win in 44 ply.
171232732 positions win in 45 ply.
2751502 positions win in 46 ply.
156622031 positions win in 47 ply.
2485187 positions win in 48 ply.
144204922 positions win in 49 ply.
2283239 positions win in 50 ply.
133571773 positions win in 51 ply.
2106515 positions win in 52 ply.
124256828 positions win in 53 ply.
1948661 positions win in 54 ply.
116054434 positions win in 55 ply.
1809234 positions win in 56 ply.
108624440 positions win in 57 ply.
1670338 positions win in 58 ply.
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1536841 positions win in 60 ply.
95987800 positions win in 61 ply.
1427080 positions win in 62 ply.
90766274 positions win in 63 ply.
1328967 positions win in 64 ply.
86038840 positions win in 65 ply.
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81797198 positions win in 67 ply.
1175010 positions win in 68 ply.
78035329 positions win in 69 ply.
1117267 positions win in 70 ply.
74613183 positions win in 71 ply.
1065255 positions win in 72 ply.
71537541 positions win in 73 ply.
1029085 positions win in 74 ply.
68677935 positions win in 75 ply.
998844 positions win in 76 ply.
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63595360 positions win in 79 ply.
943487 positions win in 80 ply.
61396153 positions win in 81 ply.
906477 positions win in 82 ply.
59360355 positions win in 83 ply.
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57445245 positions win in 85 ply.
813287 positions win in 86 ply.
55669664 positions win in 87 ply.
773810 positions win in 88 ply.
53998961 positions win in 89 ply.
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52454609 positions win in 91 ply.
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51006862 positions win in 93 ply.
708511 positions win in 94 ply.
49591615 positions win in 95 ply.
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46782122 positions win in 99 ply.
708504 positions win in 100 ply.
45377242 positions win in 101 ply.
713702 positions win in 102 ply.
43941749 positions win in 103 ply.
724492 positions win in 104 ply.
42553677 positions win in 105 ply.
723905 positions win in 106 ply.
41365625 positions win in 107 ply.
711201 positions win in 108 ply.
40286826 positions win in 109 ply.
679337 positions win in 110 ply.
39264004 positions win in 111 ply.
639354 positions win in 112 ply.
38433677 positions win in 113 ply.
606198 positions win in 114 ply.
37743330 positions win in 115 ply.
581221 positions win in 116 ply.
37187857 positions win in 117 ply.
557781 positions win in 118 ply.
36776591 positions win in 119 ply.
525428 positions win in 120 ply.
36452612 positions win in 121 ply.
498378 positions win in 122 ply.
36070106 positions win in 123 ply.
480388 positions win in 124 ply.
35591670 positions win in 125 ply.
463533 positions win in 126 ply.
35035641 positions win in 127 ply.
453196 positions win in 128 ply.
34422743 positions win in 129 ply.
446216 positions win in 130 ply.
33721042 positions win in 131 ply.
438500 positions win in 132 ply.
32966778 positions win in 133 ply.
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414054 positions win in 136 ply.
31598369 positions win in 137 ply.
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31001655 positions win in 139 ply.
422394 positions win in 140 ply.
30595929 positions win in 141 ply.
446166 positions win in 142 ply.
30293588 positions win in 143 ply.
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30011958 positions win in 145 ply.
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29714138 positions win in 147 ply.
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29393803 positions win in 149 ply.
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28706949 positions win in 153 ply.
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28010342 positions win in 157 ply.
445557 positions win in 158 ply.
27643299 positions win in 159 ply.
433505 positions win in 160 ply.
27353167 positions win in 161 ply.
423236 positions win in 162 ply.
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421849 positions win in 164 ply.
26840701 positions win in 165 ply.
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26697482 positions win in 167 ply.
433462 positions win in 168 ply.
26515318 positions win in 169 ply.
438257 positions win in 170 ply.
26280725 positions win in 171 ply.
442465 positions win in 172 ply.
26034052 positions win in 173 ply.
441506 positions win in 174 ply.
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440280 positions win in 176 ply.
25843383 positions win in 177 ply.
436221 positions win in 178 ply.
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430696 positions win in 180 ply.
26097478 positions win in 181 ply.
424502 positions win in 182 ply.
26304703 positions win in 183 ply.
423032 positions win in 184 ply.
26440268 positions win in 185 ply.
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26515410 positions win in 187 ply.
410357 positions win in 188 ply.
26581144 positions win in 189 ply.
408650 positions win in 190 ply.
26655955 positions win in 191 ply.
408884 positions win in 192 ply.
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404489 positions win in 194 ply.
26701747 positions win in 195 ply.
399436 positions win in 196 ply.
26630931 positions win in 197 ply.
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26516470 positions win in 199 ply.
384522 positions win in 200 ply.
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26063521 positions win in 203 ply.
357855 positions win in 204 ply.
25783276 positions win in 205 ply.
343054 positions win in 206 ply.
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305916 positions win in 210 ply.
24729231 positions win in 211 ply.
287816 positions win in 212 ply.
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261467 positions win in 214 ply.
24299100 positions win in 215 ply.
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24128326 positions win in 217 ply.
221057 positions win in 218 ply.
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204207 positions win in 220 ply.
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195808 positions win in 222 ply.
23819985 positions win in 223 ply.
190653 positions win in 224 ply.
23705333 positions win in 225 ply.
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23627822 positions win in 227 ply.
212189 positions win in 228 ply.
23524487 positions win in 229 ply.
232768 positions win in 230 ply.
23419403 positions win in 231 ply.
252994 positions win in 232 ply.
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272173 positions win in 234 ply.
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281152 positions win in 236 ply.
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284374 positions win in 238 ply.
22824787 positions win in 239 ply.
278023 positions win in 240 ply.
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266123 positions win in 242 ply.
22522656 positions win in 243 ply.
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249898 positions win in 246 ply.
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255871 positions win in 248 ply.
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272383 positions win in 250 ply.
22723835 positions win in 251 ply.
293911 positions win in 252 ply.
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310159 positions win in 254 ply.
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324735 positions win in 256 ply.
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325776 positions win in 258 ply.
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318415 positions win in 260 ply.
22928258 positions win in 261 ply.
306852 positions win in 262 ply.
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298432 positions win in 264 ply.
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288585 positions win in 266 ply.
23367509 positions win in 267 ply.
278392 positions win in 268 ply.
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266031 positions win in 270 ply.
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250651 positions win in 272 ply.
24220681 positions win in 273 ply.
236906 positions win in 274 ply.
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224663 positions win in 276 ply.
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214109 positions win in 278 ply.
25077839 positions win in 279 ply.
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25134305 positions win in 283 ply.
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25067659 positions win in 285 ply.
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24895617 positions win in 287 ply.
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160087 positions win in 290 ply.
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158139 positions win in 292 ply.
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157572 positions win in 294 ply.
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23824967 positions win in 297 ply.
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194220 positions win in 306 ply.
22766658 positions win in 307 ply.
213049 positions win in 308 ply.
22582867 positions win in 309 ply.
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272994 positions win in 314 ply.
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282901 positions win in 318 ply.
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280772 positions win in 320 ply.
22448735 positions win in 321 ply.
278297 positions win in 322 ply.
22600612 positions win in 323 ply.
270939 positions win in 324 ply.
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261993 positions win in 326 ply.
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191973 positions win in 334 ply.
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25714628 positions win in 341 ply.
148167 positions win in 342 ply.
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137150 positions win in 344 ply.
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27917694 positions win in 351 ply.
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139306 positions win in 354 ply.
28622684 positions win in 355 ply.
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29390300 positions win in 359 ply.
149168 positions win in 360 ply.
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32200809 positions win in 367 ply.
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33245354 positions win in 369 ply.
156524 positions win in 370 ply.
34207837 positions win in 371 ply.
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158367 positions win in 374 ply.
36044382 positions win in 375 ply.
168659 positions win in 376 ply.
36812281 positions win in 377 ply.
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38148202 positions win in 381 ply.
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135460 positions win in 386 ply.
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41417185 positions win in 389 ply.
98765 positions win in 390 ply.
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87040 positions win in 392 ply.
43748182 positions win in 393 ply.
80778 positions win in 394 ply.
44965235 positions win in 395 ply.
80000 positions win in 396 ply.
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89171 positions win in 400 ply.
48823828 positions win in 401 ply.
98813 positions win in 402 ply.
50285115 positions win in 403 ply.
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134957 positions win in 406 ply.
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291128 positions win in 428 ply.
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254748 positions win in 462 ply.
66014917 positions win in 463 ply.
235854 positions win in 464 ply.
64754756 positions win in 465 ply.
219571 positions win in 466 ply.
63366518 positions win in 467 ply.
202244 positions win in 468 ply.
61936576 positions win in 469 ply.
186595 positions win in 470 ply.
60471986 positions win in 471 ply.
173534 positions win in 472 ply.
59091492 positions win in 473 ply.
163032 positions win in 474 ply.
57768043 positions win in 475 ply.
151402 positions win in 476 ply.
56462565 positions win in 477 ply.
139459 positions win in 478 ply.
55152922 positions win in 479 ply.
129074 positions win in 480 ply.
53838551 positions win in 481 ply.
120767 positions win in 482 ply.
52533273 positions win in 483 ply.
110426 positions win in 484 ply.
51232144 positions win in 485 ply.
100101 positions win in 486 ply.
50026656 positions win in 487 ply.
91617 positions win in 488 ply.
48874359 positions win in 489 ply.
83698 positions win in 490 ply.
47863206 positions win in 491 ply.
75199 positions win in 492 ply.
46998108 positions win in 493 ply.
67075 positions win in 494 ply.
46170056 positions win in 495 ply.
61476 positions win in 496 ply.
45353643 positions win in 497 ply.
54980 positions win in 498 ply.
44393233 positions win in 499 ply.
49070 positions win in 500 ply.
43436696 positions win in 501 ply.
46195 positions win in 502 ply.
42466965 positions win in 503 ply.
41862 positions win in 504 ply.
41599939 positions win in 505 ply.
38891 positions win in 506 ply.
40869178 positions win in 507 ply.
34710 positions win in 508 ply.
40257545 positions win in 509 ply.
30728 positions win in 510 ply.
39769415 positions win in 511 ply.
29289 positions win in 512 ply.
39387827 positions win in 513 ply.
28245 positions win in 514 ply.
39031544 positions win in 515 ply.
26704 positions win in 516 ply.
38720905 positions win in 517 ply.
25722 positions win in 518 ply.
38569497 positions win in 519 ply.
25074 positions win in 520 ply.
38557570 positions win in 521 ply.
23859 positions win in 522 ply.
38539255 positions win in 523 ply.
21861 positions win in 524 ply.
38391427 positions win in 525 ply.
18204 positions win in 526 ply.
38140813 positions win in 527 ply.
15696 positions win in 528 ply.
37848423 positions win in 529 ply.
13816 positions win in 530 ply.
37497416 positions win in 531 ply.
11405 positions win in 532 ply.
37180539 positions win in 533 ply.
9297 positions win in 534 ply.
36951792 positions win in 535 ply.
7998 positions win in 536 ply.
36898183 positions win in 537 ply.
7352 positions win in 538 ply.
37009386 positions win in 539 ply.
7155 positions win in 540 ply.
37391714 positions win in 541 ply.
6681 positions win in 542 ply.
38134333 positions win in 543 ply.
5788 positions win in 544 ply.
39304840 positions win in 545 ply.
5131 positions win in 546 ply.
40493804 positions win in 547 ply.
4401 positions win in 548 ply.
41613834 positions win in 549 ply.
4012 positions win in 550 ply.
42653545 positions win in 551 ply.
3614 positions win in 552 ply.
43571179 positions win in 553 ply.
2923 positions win in 554 ply.
44435376 positions win in 555 ply.
2397 positions win in 556 ply.
45321758 positions win in 557 ply.
1771 positions win in 558 ply.
46338948 positions win in 559 ply.
1530 positions win in 560 ply.
47557808 positions win in 561 ply.
1338 positions win in 562 ply.
48831208 positions win in 563 ply.
1284 positions win in 564 ply.
50165870 positions win in 565 ply.
1138 positions win in 566 ply.
51162608 positions win in 567 ply.
1118 positions win in 568 ply.
51799897 positions win in 569 ply.
737 positions win in 570 ply.
52177491 positions win in 571 ply.
427 positions win in 572 ply.
52466375 positions win in 573 ply.
228 positions win in 574 ply.
52869269 positions win in 575 ply.
133 positions win in 576 ply.
53403636 positions win in 577 ply.
72 positions win in 578 ply.
54135499 positions win in 579 ply.
52 positions win in 580 ply.
54958585 positions win in 581 ply.
24 positions win in 582 ply.
55842046 positions win in 583 ply.
17 positions win in 584 ply.
56612721 positions win in 585 ply.
2 positions win in 586 ply.
57174623 positions win in 587 ply.
57708990 positions win in 589 ply.
58234005 positions win in 591 ply.
58831370 positions win in 593 ply.
59508892 positions win in 595 ply.
59995418 positions win in 597 ply.
60234029 positions win in 599 ply.
60219253 positions win in 601 ply.
60074108 positions win in 603 ply.
59602748 positions win in 605 ply.
58654646 positions win in 607 ply.
57510661 positions win in 609 ply.
56311783 positions win in 611 ply.
55031594 positions win in 613 ply.
53417983 positions win in 615 ply.
51395556 positions win in 617 ply.
49215525 positions win in 619 ply.
47281786 positions win in 621 ply.
45613816 positions win in 623 ply.
44102871 positions win in 625 ply.
42555542 positions win in 627 ply.
40803383 positions win in 629 ply.
38922512 positions win in 631 ply.
36880634 positions win in 633 ply.
34814899 positions win in 635 ply.
32850967 positions win in 637 ply.
31112906 positions win in 639 ply.
29645939 positions win in 641 ply.
28396414 positions win in 643 ply.
27425750 positions win in 645 ply.
26743210 positions win in 647 ply.
26196517 positions win in 649 ply.
25642970 positions win in 651 ply.
24869305 positions win in 653 ply.
23794736 positions win in 655 ply.
22343845 positions win in 657 ply.
20723285 positions win in 659 ply.
19040675 positions win in 661 ply.
17408995 positions win in 663 ply.
15905435 positions win in 665 ply.
14546154 positions win in 667 ply.
13369377 positions win in 669 ply.
12278799 positions win in 671 ply.
11311459 positions win in 673 ply.
10536647 positions win in 675 ply.
9896624 positions win in 677 ply.
9384316 positions win in 679 ply.
9006950 positions win in 681 ply.
8658509 positions win in 683 ply.
8336060 positions win in 685 ply.
8018575 positions win in 687 ply.
7710707 positions win in 689 ply.
7421183 positions win in 691 ply.
7153899 positions win in 693 ply.
6901225 positions win in 695 ply.
6640203 positions win in 697 ply.
6356997 positions win in 699 ply.
6091322 positions win in 701 ply.
5863806 positions win in 703 ply.
5649422 positions win in 705 ply.
5453178 positions win in 707 ply.
5223442 positions win in 709 ply.
4980087 positions win in 711 ply.
4731282 positions win in 713 ply.
4493331 positions win in 715 ply.
4267093 positions win in 717 ply.
4033986 positions win in 719 ply.
3819285 positions win in 721 ply.
3599532 positions win in 723 ply.
3396323 positions win in 725 ply.
3211937 positions win in 727 ply.
3036344 positions win in 729 ply.
2857257 positions win in 731 ply.
2694495 positions win in 733 ply.
2540447 positions win in 735 ply.
2374156 positions win in 737 ply.
2229497 positions win in 739 ply.
2099383 positions win in 741 ply.
1972472 positions win in 743 ply.
1877014 positions win in 745 ply.
1798085 positions win in 747 ply.
1721580 positions win in 749 ply.
1638755 positions win in 751 ply.
1550931 positions win in 753 ply.
1459983 positions win in 755 ply.
1366813 positions win in 757 ply.
1277881 positions win in 759 ply.
1193608 positions win in 761 ply.
1117164 positions win in 763 ply.
1050891 positions win in 765 ply.
991650 positions win in 767 ply.
939883 positions win in 769 ply.
886085 positions win in 771 ply.
844509 positions win in 773 ply.
800800 positions win in 775 ply.
767865 positions win in 777 ply.
741659 positions win in 779 ply.
702287 positions win in 781 ply.
671214 positions win in 783 ply.
645167 positions win in 785 ply.
632591 positions win in 787 ply.
619905 positions win in 789 ply.
607910 positions win in 791 ply.
589002 positions win in 793 ply.
561769 positions win in 795 ply.
522683 positions win in 797 ply.
493523 positions win in 799 ply.
463261 positions win in 801 ply.
438145 positions win in 803 ply.
411152 positions win in 805 ply.
382968 positions win in 807 ply.
361049 positions win in 809 ply.
337210 positions win in 811 ply.
315806 positions win in 813 ply.
302421 positions win in 815 ply.
297044 positions win in 817 ply.
301474 positions win in 819 ply.
306334 positions win in 821 ply.
308536 positions win in 823 ply.
317043 positions win in 825 ply.
333539 positions win in 827 ply.
345133 positions win in 829 ply.
352450 positions win in 831 ply.
354119 positions win in 833 ply.
352333 positions win in 835 ply.
347666 positions win in 837 ply.
340233 positions win in 839 ply.
326864 positions win in 841 ply.
311109 positions win in 843 ply.
295245 positions win in 845 ply.
275883 positions win in 847 ply.
263147 positions win in 849 ply.
251298 positions win in 851 ply.
238383 positions win in 853 ply.
227719 positions win in 855 ply.
215011 positions win in 857 ply.
197676 positions win in 859 ply.
180745 positions win in 861 ply.
166004 positions win in 863 ply.
152986 positions win in 865 ply.
139607 positions win in 867 ply.
129295 positions win in 869 ply.
121530 positions win in 871 ply.
115882 positions win in 873 ply.
112122 positions win in 875 ply.
109555 positions win in 877 ply.
111756 positions win in 879 ply.
115592 positions win in 881 ply.
121177 positions win in 883 ply.
129121 positions win in 885 ply.
134520 positions win in 887 ply.
135593 positions win in 889 ply.
136711 positions win in 891 ply.
137242 positions win in 893 ply.
137012 positions win in 895 ply.
134353 positions win in 897 ply.
129206 positions win in 899 ply.
124213 positions win in 901 ply.
119106 positions win in 903 ply.
112743 positions win in 905 ply.
107739 positions win in 907 ply.
102879 positions win in 909 ply.
104034 positions win in 911 ply.
106104 positions win in 913 ply.
107613 positions win in 915 ply.
103719 positions win in 917 ply.
99724 positions win in 919 ply.
92514 positions win in 921 ply.
90343 positions win in 923 ply.
89895 positions win in 925 ply.
88981 positions win in 927 ply.
86899 positions win in 929 ply.
81233 positions win in 931 ply.
77345 positions win in 933 ply.
72798 positions win in 935 ply.
70930 positions win in 937 ply.
66411 positions win in 939 ply.
67476 positions win in 941 ply.
68930 positions win in 943 ply.
72748 positions win in 945 ply.
76011 positions win in 947 ply.
76450 positions win in 949 ply.
75761 positions win in 951 ply.
75880 positions win in 953 ply.
76727 positions win in 955 ply.
79400 positions win in 957 ply.
82707 positions win in 959 ply.
81806 positions win in 961 ply.
80023 positions win in 963 ply.
77578 positions win in 965 ply.
71527 positions win in 967 ply.
64833 positions win in 969 ply.
56489 positions win in 971 ply.
47281 positions win in 973 ply.
38986 positions win in 975 ply.
33156 positions win in 977 ply.
26752 positions win in 979 ply.
21216 positions win in 981 ply.
17171 positions win in 983 ply.
13737 positions win in 985 ply.
10721 positions win in 987 ply.
7844 positions win in 989 ply.
6449 positions win in 991 ply.
5331 positions win in 993 ply.
4231 positions win in 995 ply.
3478 positions win in 997 ply.
2780 positions win in 999 ply.
2119 positions win in 1001 ply.
1683 positions win in 1003 ply.
1181 positions win in 1005 ply.
1027 positions win in 1007 ply.
680 positions win in 1009 ply.
532 positions win in 1011 ply.
423 positions win in 1013 ply.
410 positions win in 1015 ply.
351 positions win in 1017 ply.
341 positions win in 1019 ply.
264 positions win in 1021 ply.
194 positions win in 1023 ply.
55 positions win in 1025 ply.
15 positions win in 1027 ply.
8 positions win in 1029 ply.
6 positions win in 1031 ply.
6 positions win in 1033 ply.

177645100092 positions are wins.
11201586040 positions are cursed wins.
19008683296 positions are draws.
6065342 positions are cursed losses.
12752584310 positions are losses.

212353836 positions lose in 0 ply.
23831124 positions lose in 1 ply.
11597344694 positions lose in 2 ply.
8563066 positions lose in 3 ply.
658147317 positions lose in 4 ply.
4578230 positions lose in 5 ply.
170602759 positions lose in 6 ply.
1852416 positions lose in 7 ply.
44287912 positions lose in 8 ply.
850868 positions lose in 9 ply.
16279967 positions lose in 10 ply.
343668 positions lose in 11 ply.
6358509 positions lose in 12 ply.
191840 positions lose in 13 ply.
3128316 positions lose in 14 ply.
98764 positions lose in 15 ply.
1520040 positions lose in 16 ply.
57119 positions lose in 17 ply.
774509 positions lose in 18 ply.
31279 positions lose in 19 ply.
434395 positions lose in 20 ply.
16526 positions lose in 21 ply.
283435 positions lose in 22 ply.
10687 positions lose in 23 ply.
194783 positions lose in 24 ply.
8044 positions lose in 25 ply.
138264 positions lose in 26 ply.
6621 positions lose in 27 ply.
96898 positions lose in 28 ply.
4840 positions lose in 29 ply.
62866 positions lose in 30 ply.
3341 positions lose in 31 ply.
41957 positions lose in 32 ply.
2844 positions lose in 33 ply.
25324 positions lose in 34 ply.
2005 positions lose in 35 ply.
17296 positions lose in 36 ply.
1342 positions lose in 37 ply.
12002 positions lose in 38 ply.
829 positions lose in 39 ply.
7477 positions lose in 40 ply.
614 positions lose in 41 ply.
4986 positions lose in 42 ply.
518 positions lose in 43 ply.
3731 positions lose in 44 ply.
551 positions lose in 45 ply.
1856 positions lose in 46 ply.
350 positions lose in 47 ply.
1098 positions lose in 48 ply.
230 positions lose in 49 ply.
801 positions lose in 50 ply.
219 positions lose in 51 ply.
721 positions lose in 52 ply.
65 positions lose in 53 ply.
282 positions lose in 54 ply.
10 positions lose in 55 ply.
112 positions lose in 56 ply.
50 positions lose in 58 ply.
31 positions lose in 60 ply.
38 positions lose in 62 ply.
38 positions lose in 64 ply.
2139616 positions lose in 101 ply.
2370366 positions lose in 102 ply.
251769 positions lose in 103 ply.
615703 positions lose in 104 ply.
134530 positions lose in 105 ply.
224229 positions lose in 106 ply.
73989 positions lose in 107 ply.
68002 positions lose in 108 ply.
43411 positions lose in 109 ply.
30741 positions lose in 110 ply.
27439 positions lose in 111 ply.
15310 positions lose in 112 ply.
16495 positions lose in 113 ply.
7762 positions lose in 114 ply.
10373 positions lose in 115 ply.
4098 positions lose in 116 ply.
6988 positions lose in 117 ply.
2285 positions lose in 118 ply.
4890 positions lose in 119 ply.
1545 positions lose in 120 ply.
3671 positions lose in 121 ply.
1309 positions lose in 122 ply.
2442 positions lose in 123 ply.
985 positions lose in 124 ply.
1737 positions lose in 125 ply.
616 positions lose in 126 ply.
1309 positions lose in 127 ply.
448 positions lose in 128 ply.
1214 positions lose in 129 ply.
209 positions lose in 130 ply.
823 positions lose in 131 ply.
107 positions lose in 132 ply.
360 positions lose in 133 ply.
58 positions lose in 134 ply.
159 positions lose in 135 ply.
44 positions lose in 136 ply.
58 positions lose in 137 ply.
37 positions lose in 138 ply.
83 positions lose in 139 ply.
15 positions lose in 140 ply.
37 positions lose in 141 ply.
17 positions lose in 142 ply.
17 positions lose in 143 ply.
4 positions lose in 144 ply.
14 positions lose in 145 ply.
15 positions lose in 147 ply.
12 positions lose in 149 ply.
1 positions lose in 151 ply.

Longest win for white&#58; 65 ply; 5q1n/8/8/4N3/4B3/3K2R1/8/4k3 w - -
Longest cursed win for white&#58; 152 ply; 5n2/8/8/7q/3N1R2/3B4/8/k2K4 w - -
Longest cursed win for black&#58; 1034 ply; 8/2B5/8/1k6/8/3K4/4N1R1/qn6 w - -
Longest win for black&#58; 100 ply; 8/8/8/q7/8/8/1R3B2/NKnk4 w - -

Resetting black cursed losses.
time taken =   0&#58;33.770
tb_size = 392418260640
This is the stats for KRBNvKQN... a bit weird to see mate this long but due to different metric I'm uncertain about its correctness.
Dann Corbit
Posts: 12537
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: 7-men Syzygy attempt

Post by Dann Corbit »

That is really, really interesting.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
User avatar
Nordlandia
Posts: 2821
Joined: Fri Sep 25, 2015 9:38 pm
Location: Sortland, Norway

Re: 7-men Syzygy attempt

Post by Nordlandia »

The longest 7-piece mate - 549 moves according Lomonosov Tablebases.

Longest win: 1098 plies.
syzygy
Posts: 5557
Joined: Tue Feb 28, 2012 11:56 pm

Re: 7-men Syzygy attempt

Post by syzygy »

Max DTZ = 517 moves as calculated by Marc Bourzut, so 1034 plies seems correct.
koedem
Posts: 105
Joined: Fri Mar 18, 2016 10:45 pm

Re: 7-men Syzygy attempt

Post by koedem »

I assume these are plies till conversion? (otherwise I don't understand how for the same player to move there can be even and odd plies)

Is the gap for white to move and win ending just behind 50 moves (rule jump from 65 to 101 plies) coincidence? Also, how does white have a win in 101 plies but after making a move black doesn't have a loss in 100 plies? Does that mean the White move was a capture and the loss in 100 plies is a 6 men position?
Hai
Posts: 598
Joined: Sun Aug 04, 2013 1:19 pm

Re: 7-men Syzygy attempt

Post by Hai »

syzygy wrote:Max DTZ = 517 moves as calculated by Marc Bourzut, so 1034 plies seems correct.
The 50 moves rule should be set off for engine matches and tournaments.
At least for Stockfish vs ...
syzygy
Posts: 5557
Joined: Tue Feb 28, 2012 11:56 pm

Re: 7-men Syzygy attempt

Post by syzygy »

syzygy wrote:Max DTZ = 517 moves as calculated by Marc Bourzut, so 1034 plies seems correct.
Correction: Marc Bourzutschky
syzygy
Posts: 5557
Joined: Tue Feb 28, 2012 11:56 pm

Re: 7-men Syzygy attempt

Post by syzygy »

koedem wrote:I assume these are plies till conversion? (otherwise I don't understand how for the same player to move there can be even and odd plies)

Is the gap for white to move and win ending just behind 50 moves (rule jump from 65 to 101 plies) coincidence? Also, how does white have a win in 101 plies but after making a move black doesn't have a loss in 100 plies? Does that mean the White move was a capture and the loss in 100 plies is a 6 men position?
They are plies until a zeroing move (or mate). Zeroing moves are moves that reset the 50-move counter, so captures and pawn moves.

If a position is a win outside the 50-move rule (a "cursed win"), then its value is either the number of plies until a winning zeroing move (or losing by the other side) or 100 plus the number of plies until a zeroing move into another cursed win, whichever is smaller.