MateFinder 9

Discussion of anything and everything relating to chess playing software and machines.

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Eelco de Groot
Posts: 4676
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: MateFinder 9

Post by Eelco de Groot »

Kaissa still needs depth 34 to find it, with one thread, 512 Mb. With only 16 Mb it is a bit slower, depth 39.

Code: Select all

36/76  1:53   +M8++    1.Bd7 (274.642.680) 2429 

36/76  1:53   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (274.707.943) 2429 

37/10  1:53   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (275.052.394) 2429 

38/10  1:53   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (275.518.619) 2429 

39/10  1:53   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (276.231.683) 2429 

40/10  1:53   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (276.874.913) 2429 

41/10  1:54   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (278.386.992) 2429 

42/10  1:55   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (280.061.937) 2430 

43/10  1:55   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (281.467.594) 2430 

44/10  1:56   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (284.117.776) 2430 

45/10  1:57   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (285.481.917) 2431 

46/10  1:57   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (286.830.109) 2432 

47/10  1:58   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (288.293.974) 2434 

48/10  1:59   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (289.836.243) 2435 

49/10  1:59   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (292.711.578) 2439 

50/10  2:00   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (295.351.446) 2443 

51/10  2:03   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (301.790.606) 2451 

52/10  2:05   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (308.045.403) 2459 

53/10  2:07   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (315.077.224) 2467 

54/10  2:11   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (327.393.739) 2481 

55/10  2:16   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (339.479.808) 2493 

56/10  2:19   +M5      1.Bd7 b4 2.Kf7 b3 3.Ke7 b2 4.Kd8 g5 
                       5.Bxc7+ (350.324.057) 2505 

best move: Be6-d7 time: 2:19.891 min  n/s: 2.505.177  nodes: 350.324.057
I put in a trick from Rainbow Serpent again, that will slow it down in general a bit unfortunately, but with it can solve one other position again that Vincent posted. Without it, it can't. I don't know if it slows down the position above.

I must say it is not really clear to me why this happens , even though some at Fishcooking say you only need an inkling of knowledge of the way Stockfish works to explain why Stockfish has trouble, that is not enough explanation. It is clear Zugzwang is involved and only the PV search solves the one below, so if Stockfish chooses the wrong move for the PV in this one, which is very possible if there are more moves with a draw score, it has even far less chance of finding especially concerning this position below. Kaissa can't if it chooses something like Rd7 as first move, it is only the one version that does this but still:

Code: Select all

q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - -

Engine: Kaissa IV NoContempt 20190801_008 (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott

35/09  0:01   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 (5.339.958) 3093 

36/09  0:02   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (7.916.691) 3116 

37/07  0:03   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (11.207.294) 3147 

38/31  0:04   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 5.Bc5 Qb8 6.Kf3 Qa8+ (14.565.140) 3146 

39/15  0:06   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (19.884.761) 3153 

40/05  0:08   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (25.647.041) 3145 

41/13  0:11   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 (35.947.868) 3145 

42/09  0:21   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (66.599.533) 3113 

43/48  0:26   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (82.949.714) 3116 

44/48  0:30   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 5.Ra7+ Qxa7 6.Bxa7 Kxa7 
                       7.Ke3 Kb7 8.Ke4 Kc6 9.Kd4 Kd6 10.Ke3 Kd5 
                       11.Kd3 Ke5 12.Ke3 (94.346.198) 3118 

45/09  0:33   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (103.480.179) 3122 

46/09  0:45   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (140.571.468) 3113 

47/15  0:55   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 (172.834.924) 3128 

48/09  1:08   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 (214.997.968) 3152 

49/09  1:39   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (317.815.399) 3187 

50/15  1:59   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (383.318.708) 3204 

51/14  2:27   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 5.Ke2 Qg2+ 6.Ke1 Qh1+ 
                       7.Ke2 (474.889.335) 3213 

52/13  2:57   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 (573.210.566) 3235 

53/13  3:22   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (658.763.516) 3252 

54/09  4:06   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 (804.694.830) 3260 

55/09  5:34   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (1.084.789.697) 3245 

56/09  6:49   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (1.340.135.006) 3271 

57/27  8:19   0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (1.643.405.149) 3290 

58/31  10:59  0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Kf2 Qa8 (2.147.365.553) 3255 

59/23  15:44  0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (3.104.593.270) 3287 

60/23  18:22  0.00     1.Rd7 Qb8+ 2.Kh1 Qa8+ (3.639.819.776) 3301 

best move: Rh7-d7 time: 18:22.641 min  n/s: 3.301.091  nodes: 3.639.819.776


Tablebases help it seems but they were not used in my case.

[d]q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - -

Code: Select all

q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - -

Engine: Kaissa IV NoContempt 20190801_006 (one thread, 512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott

35/21  0:01   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (5.743.308) 3244 

36/27  0:02   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (7.669.494) 3263 

37/19  0:03   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (11.141.149) 3247 

38/25  0:04   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ (14.171.748) 3234 

39/23  0:06   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ (19.320.921) 3205 

40/23  0:06   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ 
                       4.Kf3 Qa8+ 5.Ke3 Qb8 6.Ra7+ Qxa7 
                       7.Bxa7 Kxa7 8.Kd4 Kb6 9.Kd5 Ka6 
                       10.Kc6 Ka5 11.Kc5 Ka6 (21.943.827) 3205 

41/23  0:09   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ 
                       4.Kf3 Qa8+ 5.Ke3 Qb8 6.Ra7+ Qxa7 
                       7.Bxa7 Kxa7 8.Kd4 Kb6 9.Kd5 Ka6 
                       10.Kc6 Ka5 11.Kc5 Ka6 (29.568.593) 3183 

42/23  0:12   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (41.077.562) 3164 

43/23  0:17   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (56.155.012) 3182 

44/11  0:22   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (73.292.305) 3199 

45/28  0:30   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ 
                       4.Kf3 Qa8+ 5.Ke3 Qb8 6.Ra7+ Qxa7 
                       7.Bxa7 Kxa7 8.Kd4 Ka6 9.Kc5 Ka5 
                       10.Kd5 Kb6 11.Kd6 Kb7 12.Kc5 Ka6 
                       13.Kc6 Ka5 14.Kd5 (95.597.678) 3181 

46/41  0:41   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ (131.623.242) 3144 

47/27  0:49   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ 
                       4.Kf3 Qa8+ 5.Ke3 Qb8 6.Ra7+ Qxa7 
                       7.Bxa7 Kxa7 8.Kd4 Kb6 9.Kd5 Ka5 
                       10.Kc5 Ka6 11.Kc6 Ka5 12.Kd7 Kb6 
                       13.Kd6 Ka5 (155.998.983) 3151 

48/29  1:15   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ 
                       4.Kf3 Qa8+ 5.Ke3 Qe8+ 6.Kd2 Qb8 
                       7.Ke2 Qe8+ (239.608.565) 3156 

49/15  1:29   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (283.744.769) 3178 

50/15  1:45   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 (335.694.603) 3185 

51/27  2:54   0.00     1.Bd4 Qb8+ 2.Kh3 Qa8 3.Kg3 Qb8+ (561.648.173) 3215 

52/43  3:15   +0.11++  1.Bd4 (626.644.204) 3207 

52/43  3:26   +0.22++  1.Bd4 (664.205.918) 3220 

52/43  3:26   +0.37++  1.Bd4 (664.927.631) 3220 

52/56  3:26   +0.59++  1.Bd4 (666.357.623) 3220 

52/56  3:28   +0.88++  1.Bd4 (670.464.253) 3219 

52/56  3:28   +1.26++  1.Bd4 (671.768.582) 3219 

52/56  3:28   +1.76++  1.Bd4 (672.071.308) 3220 

52/56  3:28   +2.41++  1.Bd4 (672.831.604) 3220 

52/63  3:29   +3.24++  1.Bd4 (673.447.147) 3221 

52/70  3:35   +3.97    1.Bd4 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Rg7 Qb8 5.Kg2 Qa8+ 6.Kg3 Qb8+ 
                       7.Kf3 Qf8+ 8.Ke2 Qa8 9.Ke3 Qe8+ 
                       10.Kd3 Qb8 11.Rg6+ Ka5 12.Rg1 Ka6 
                       13.Rg7 Qa8 14.Rf7 (692.828.854) 3221 

53/79  3:41   +4.08++  1.Bd4 (711.253.277) 3215 

53/79  3:58   +4.19++  1.Bd4 (760.955.100) 3188 

53/79  4:03   +4.34++  1.Bd4 (777.803.721) 3188 

53/79  4:05   +4.56++  1.Bd4 (782.478.260) 3186 

53/79  4:05   +4.85++  1.Bd4 (783.759.586) 3187 

53/79  4:07   +5.23++  1.Bd4 (789.251.041) 3191 

53/100 4:08   +5.74++  1.Bd4 (794.792.336) 3197 

53/100 4:09   +6.38++  1.Bd4 (797.899.671) 3201 

53/100 4:10   +7.22++  1.Bd4 (802.120.813) 3204 

53/100 4:11   +8.28++  1.Bd4 (805.629.993) 3207 

53/100 4:15   +8.28    1.Bd4 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Rg7 Qb8 5.Kg2 Qa8+ 6.Kg3 Qb8+ 
                       7.Kf3 Qf8+ 8.Ke2 Qe8+ 9.Kd3 Qa8 
                       10.Rf7 Qb8 11.Kc2 Qh2+ 12.Bf2 Qb8 
                       13.Kb1 Qa8 14.Kb2 (818.857.498) 3208 

54/67  5:44   +8.38++  1.Bd4 (1.100.376.654) 3194 

54/99  6:49   +8.49++  1.Bd4 (1.301.196.843) 3179 

54/99  7:06   +8.65++  1.Bd4 (1.380.659.610) 3233 

54/99  7:19   +8.86++  1.Bd4 (1.439.283.033) 3276 

54/99  7:35   +9.15++  1.Bd4 (1.499.630.668) 3293 

54/99  7:43   +9.54++  1.Bd4 (1.532.909.498) 3310 

54/99  7:57   +10.04++ 1.Bd4 (1.600.251.647) 3349 

54/99  7:59   +10.69++ 1.Bd4 (1.606.054.982) 3350 

54/99  8:00   +11.52++ 1.Bd4 (1.610.033.785) 3351 

54/99  8:01   +12.58++ 1.Bd4 (1.612.873.871) 3351 

54/99  8:02   +13.93++ 1.Bd4 (1.616.372.303) 3351 

54/99  8:02   +15.63++ 1.Bd4 (1.617.260.642) 3352 

54/99  8:02   +17.78++ 1.Bd4 (1.617.844.415) 3352 

54/99  8:02   +20.49++ 1.Bd4 (1.618.240.645) 3352 

54/99  8:02   +23.90++ 1.Bd4 (1.618.432.859) 3352 

54/99  8:02   +28.18++ 1.Bd4 (1.618.518.403) 3352 

54/99  8:02   +33.56++ 1.Bd4 (1.618.609.458) 3352 

54/99  8:02   +40.30++ 1.Bd4 (1.618.646.788) 3352 

54/99  8:03   +9.91    1.Bd4 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Rg7 Qb8 5.Kg2 Qa8+ 6.Kg3 Qb8+ 
                       7.Kf3 Qf8+ 8.Ke2 Qe8+ 9.Kd3 Qa8 
                       10.Rf7 Qb8 11.Kc2 Qh2+ 12.Bf2 Qb8 
                       13.Kb1 Qa8 14.Ka2 (1.623.461.550) 3354 

55/47  10:03  +10.02++ 1.Bd4 (1.992.323.000) 3302 

55/75  10:12  +10.13++ 1.Bd4 (2.018.462.996) 3296 

55/75  10:23  +10.28++ 1.Bd4 (2.060.680.264) 3304 

55/75  10:29  +10.50++ 1.Bd4 (2.081.518.087) 3308 

55/75  10:35  +10.79++ 1.Bd4 (2.105.071.118) 3313 

55/75  10:43  +11.17++ 1.Bd4 (2.134.461.629) 3318 

55/155 10:49  +11.68++ 1.Bd4 (2.157.931.100) 3322 

55/155 10:52  +12.32++ 1.Bd4 (2.170.369.979) 3324 

55/155 10:56  +13.15++ 1.Bd4 (2.183.092.855) 3327 

55/155 10:58  +14.22++ 1.Bd4 (2.192.840.223) 3329 

55/155 10:59  +15.56++ 1.Bd4 (2.197.865.731) 3330 

55/155 11:00  +17.27++ 1.Bd4 (2.200.460.927) 3330 

55/155 11:00  +19.42++ 1.Bd4 (2.201.410.999) 3331 

55/155 11:01  +22.13++ 1.Bd4 (2.202.290.491) 3331 

55/155 11:01  +25.53++ 1.Bd4 (2.202.792.693) 3331 

55/155 11:01  +29.82++ 1.Bd4 (2.203.127.404) 3331 

55/155 11:01  +35.19++ 1.Bd4 (2.203.387.988) 3331 

55/155 11:01  +41.93++ 1.Bd4 (2.203.531.792) 3331 

55/155 11:02  +47.82   1.Bd4 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Rg7 Qb8 5.Kg2 Qa8+ 6.Kg3 Qb8+ 
                       7.Kf3 Qf8+ 8.Ke2 Qe8+ 9.Kd3 Qa8 
                       10.Rf7 Qb8 11.Kc2 Qc8+ 12.Kb2 Qa8 
                       13.Bf2 Qh8+ 14.Kb1 (2.206.247.513) 3332 

56/76  29:24  +47.92++ 1.Bd4 (6.000.434.811) 3400 

56/76  34:40  +48.03++ 1.Bd4 (7.088.070.986) 3406 

56/95  36:01  +48.19++ 1.Bd4 (7.472.998.393) 3457 

56/95  38:39  +48.19   1.Bd4 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Rg7 Qb8 5.Kg2 Qa8+ 6.Kg3 Qb8+ 
                       7.Kf3 Qf8+ 8.Ke4 Qe8+ 9.Kd3 Qa8 
                       10.Rf7 Qb8 11.Kc2 Qh2+ 12.Bf2 Qb8 
                       13.Kc1 Qc8+ 14.Kb1 (7.965.122.353) 3434 

57/72  69:48  +48.30++ 1.Bd4 (13.943.637.671) 3329 

57/87  71:09  +48.40++ 1.Bd4 (14.324.547.351) 3355 

57/87  72:12  +48.56++ 1.Bd4 (14.626.048.661) 3376 

57/87  72:48  +48.77++ 1.Bd4 (14.803.244.256) 3388 

57/87  73:23  +49.07++ 1.Bd4 (14.969.502.082) 3399 

57/87  73:47  +49.45++ 1.Bd4 (15.081.627.924) 3406 

57/87  74:04  +49.95++ 1.Bd4 (15.165.298.595) 3412 

57/87  74:20  +50.60++ 1.Bd4 (15.241.399.311) 3416 

57/87  74:27  +51.43++ 1.Bd4 (15.277.442.076) 3419 

57/87  74:41  +52.49++ 1.Bd4 (15.345.364.365) 3423 

57/87  74:51  +53.84++ 1.Bd4 (15.395.637.100) 3427 

57/87  74:57  +55.54++ 1.Bd4 (15.421.824.388) 3429 

57/87  74:57  +52.51   1.Bd4 Qb8+ 2.Kh1 Qa8+ 3.Kg1 Qg8+ 
                       4.Rg7 Qb8 5.Kg2 Qa8+ 6.Kg3 Qb8+ 
                       7.Kf3 Qf8+ 8.Ke4 Qe8+ 9.Kd3 Qa8 
                       10.Rf7 Qb8 11.Kc2 Qa8 12.Kb2 Qg2+ 
                       13.Bf2 Qa8 14.Rh7 (15.425.027.214) 3429 

58/70  102:18 +52.61++ 1.Bd4 (20.696.832.287) 3371 

58/70  102:30 +52.72++ 1.Bd4 (20.752.224.210) 3373 

58/70  102:38 +52.88++ 1.Bd4 (20.787.122.692) 3375 

58/70  102:43 +53.09++ 1.Bd4 (20.811.982.988) 3376 

58/70  102:46 +53.38++ 1.Bd4 (20.826.519.163) 3377 

58/70  102:51 +53.77++ 1.Bd4 (20.847.067.164) 3378 

58/70  102:54 +54.27++ 1.Bd4 (20.862.768.812) 3378 

58/70  102:57 +54.92++ 1.Bd4 (20.878.277.175) 3379 

58/70  102:59 +55.75++ 1.Bd4 (20.887.038.881) 3380 

58/70  103:00 +56.81++ 1.Bd4 (20.891.613.066) 3380 

58/70  103:16 +52.40-- 1.Bd4 Qb8+ (20.945.505.747) 3379 

58/70  140:57 +55.28++ 1.Bd4 (27.761.507.471) 3282 

58/70  140:59 +57.43++ 1.Bd4 (27.769.865.489) 3282 

58/70  156:31 +57.43   1.Bd4 (30.704.116.953) 3269 

best move: Be3-d4 time: 156:31.906 min  n/s: 3.269.222  nodes: 30.704.116.953
I feel Rainbow Serpent still was better in resolving to Mate. But some parts were very different then in the details, and Stockfish less aggressive pruning perhaps. And a lot of luck involved finding Mate in 49.
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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User avatar
xr_a_y
Posts: 1872
Joined: Sat Nov 25, 2017 2:28 pm
Location: France

Re: MateFinder 9

Post by xr_a_y »

Dann Corbit wrote: ↑Tue Feb 13, 2018 10:12 am Just tried it on a collection of mates and it did quite well.
Hi Dann,
Can you share this collection please?
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Dann Corbit
Posts: 12799
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: MateFinder 9

Post by Dann Corbit »

I don't remember what collection I used.

Here is a listing of the number of checkmates in my database, ordered by direct mate distance:

select dm, count(dm) as countdm from Epd where dm > 0 group by dm

dm countdm
2 1067600
18 3830
27 1127
68 3213
70 2780
95 46
104 10
109 13
118 10
143 46
152 11
159 1
168 3
7 58043
8 25177
22 2426
25 1518
38 228
41 153
72 2813
74 2379
88 174
105 20
106 10
108 18
124 13
139 126
155 4
157 3
158 3
173 1
175 2
5 285921
23 2007
40 205
57 91
58 42
73 2509
75 2074
90 116
107 13
122 10
123 10
125 15
138 133
141 80
4 559867
9 19233
11 12991
34 390
36 307
52 66
54 60
59 45
79 1229
84 461
93 72
111 10
129 131
134 199
136 178
145 28
161 1
188 1
195 1
218 1
220 1
31 650
32 578
48 111
49 80
63 32
81 855
100 26
131 172
133 215
149 6
164 1
182 1
10 15428
51 84
60 53
69 2915
92 60
101 19
103 15
121 7
146 23
151 2
160 1
226 1
6 125700
21 2989
24 1665
39 207
55 82
56 64
89 144
91 100
140 120
142 64
156 1
174 1
205 1
1 984769
19 3568
35 350
37 244
44 115
53 64
62 48
76 1806
85 361
96 39
117 7
119 9
126 17
137 182
144 37
153 5
171 2
3 856953
12 11143
17 4295
26 1326
28 958
42 131
67 3698
71 2686
78 1460
87 246
94 47
110 15
112 13
128 20
135 194
194 1
203 1
20 3324
29 833
43 137
45 117
61 42
77 1628
86 310
102 22
120 14
127 24
154 3
193 1
202 1
15 6060
30 681
33 474
46 97
65 4378
66 4102
80 1016
83 568
113 7
114 12
115 11
116 8
130 156
132 167
147 22
150 4
165 1
231 1
484 36
13 9011
14 7171
16 5107
47 92
50 90
64 50
82 742
97 35
98 33
99 28
148 14
167 2
181 1
183 1
200 1
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xr_a_y
Posts: 1872
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Location: France

Re: MateFinder 9

Post by xr_a_y »

Wow that's a lot of position ;-)

Can you extract the 6 < dm < 15 in a edp file with dm, bm and maybe even the pv ?
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Dann Corbit
Posts: 12799
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Re: MateFinder 9

Post by Dann Corbit »

Here is a link:


It's about 4 MB after compression, and 27 MB when decompressed.
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.
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xr_a_y
Posts: 1872
Joined: Sat Nov 25, 2017 2:28 pm
Location: France

Re: MateFinder 9

Post by xr_a_y »

great. thanks !
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MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: MateFinder 9

Post by MikeB »

Dann Corbit wrote: ↑Tue Aug 20, 2019 9:17 pm Here is a link:


It's about 4 MB after compression, and 27 MB when decompressed.
single ciore since my computer was busy running a match

[d]rRq5/1B4K1/1B6/3p3p/7p/1k1p4/8/8 b - - acd 29; acs 0; bm Qd7+; ce 32740; dm 14; pm Qd7+; pv Qd7+ Kf6 Rxb8 Be3 Rxb7 Bf4 Qg7+ Ke6 Qf7+ Ke5 Re7+ Kd6 Qxf4+ Kxe7 d2 Kd7 d1=Q Kc6 Qe2 Kd7 Qeg4+ Kc6;

Code: Select all

info depth 22 seldepth 15 multipv 1 score mate 8 nodes 55049161 nps 2444022 hashfull 1000 tbhits 0 time 22524 pv c8d7 g7f6 a8b8 b6e3 b8b7 f6e5 b3c4 e3h6 d7f7 h6f8 f7f8 e5e6 b7e7 e6d6 f8f6
[d]r7/7p/1Qbk2pR/n2N4/q7/P1P3PK/B7/8 w - - acd 29; acs 3; bm Qc7+; ce 32740; dm 14; pm Qc7+; pv Qc7+ Kc5 Rh4 Qxh4+ gxh4 Re8 Qxa5+ Kd6 Qc7+ Kc5 Nb4 Re3+ Kh2 Rxc3 Qxc6+ Kd4 Qf6+ Kc5 Qe5+ Kb6 Qxc3 g5 Qc6+ Ka7 Qc7+ Ka8 Bd5#;

Code: Select all

info depth 32 seldepth 29 multipv 1 score mate 13 nodes 395718003 nps 2133699 hashfull 1000 tbhits 0 time 185461 pv b6c7 d6c5 h6h4 a4h4 h3h4 a5c4 d5b4 g6g5 h4h5 a8c8 c7c8 c4a5 a2d5 c5d6 d5c6 a5b3 c8d7 d6c5 d7c7 c5c4 c6b5 c4b5 c7c6 b5a5 c6a6
[d]q7/8/8/5Q2/8/3KPp2/p7/1k6 w - - acd 29; acs 4; bm Kc3+; c0 "tp31#104 {m}; 2003; Gurgenidze D; 1-0"; c3 "Kc3+"; ce 32740; dm 14; id "yacpdb id 290853"; pm Kc3+; pv Kc3+ Ka1 Qe5 Qa4 Kd2+ Kb1 Qb8+ Ka1 Qh8+ Kb1 Qh1+ Qd1+ Qxd1+ Kb2 Qa4 a1N Qd4+ Kb3 Kd3 f2 Qb6+ Ka2 Kc3 Nb3 Qxb3+ Ka1 Qb2+;

Code: Select all

info depth 30 seldepth 41 multipv 1 score mate 21 nodes 2332069 nps 2339086 tbhits 0 time 997 pv d3c3 b1a1 f5e5 a8a4 c3d2 a1b1 e5b8 b1a1 b8h8 a1b1 h8h1 a4d1 h1d1 b1b2 d1f3 a2a1q f3b7 b2a3 b7a6 a3b4 a6a1 b4c5 e3e4 c5c6 a1f6 c6d7 d2c3 d7c7 e4e5 c7d7 e5e6 d7c7 e6e7 c7d7 c3d2 d7c7 e7e8q c7b7 f6c6 b7a7 e8a8
info depth 31 seldepth 47 multipv 1 score mate 19 nodes 3164777 nps 2342544 hashfull 465 tbhits 0 time 1351 pv d3c3 b1a1 f5e5 a8a4 c3d2 a1b1 e5b8 b1a1 b8h8 a1b1 h8h1 a4d1 h1d1 b1b2 d1f3 a2a1q f3b7 b2a3 b7a6 a3b4 a6a1 b4c5 a1d4 c5c6 e3e4 c6b7 e4e5 b7c6 e5e6 c6b5 e6e7 b5a6 e7e8q a6b7 e8b5 b7c7 d4d7
...
info depth 40 seldepth 37 multipv 1 score mate 19 nodes 215726471 nps 2342383 hashfull 923 tbhits 0 time 92097 pv d3c3 b1a1 f5e5 a8a4 c3d2 a1b1 e5b8 b1a1 b8h8 a1b1 h8h1 a4d1 h1d1 b1b2 d1f3 a2a1q f3b7 b2a3 b7a6 a3b4 a6a1 b4c5 a1d4 c5c6 e3e4 c6b7 e4e5 b7c6 e5e6 c6b5 e6e7 b5a6 e7e8q a6b7 e8b5 b7c7 d4d7
[d]K7/p7/p7/7B/P7/4n2p/4N2p/7k w - - acd 29; acs 0; bm Bf3+; c0 "Schlesische Zeitung {m}; 1914; Kraemer A; 1-0"; c3 "Bf3+"; ce 32740; dm 14; id "yacpdb id 275492"; pm Bf3+; pv Bf3+ Ng2 Kb8 a5 Ba8 a6 Kb7 Ne3 Kb6+ Ng2 Kc6 Ne3 Kc5+ Ng2 Kd5 Nf4+ Ke5+ Ng2 Ke4 Nh4 Kf4+ Ng2+ Kf3 Nh4+ Kf2+ Ng2 Ng3+;

Code: Select all

info depth 39 seldepth 91 multipv 1 score cp 10000 lowerbound nodes 138609095 nps 1965779 hashfull 836 tbhits 0 time 70511 pv h5f3
info depth 39 currmove h5f3 currmovenumber 1
info depth 39 seldepth 91 multipv 1 score mate 74 lowerbound nodes 138845919 nps 1966488 hashfull 836 tbhits 0 time 70606 pv h5f3
info depth 39 seldepth 91 multipv 1 score mate 14 nodes 138896387 nps 1966563 hashfull 836 tbhits 0 time 70629 pv h5f3 e3g2 a8b8 a6a5 f3a8 a7a6 b8b7 g2e3 b7c7 e3g2 c7c6 g2e3 c6c5 e3g2 c5d5 g2e1 d5d4 e1g2 d4e4 g2e1 e4f4 e1g2 f4f3 g2h4 f3f2 h4f3 a8f3
[d]RrqkqrR1/qPNbNPq1/BnqBqnB1/bqQQQqb1/Q2K2Q1/3B4/8/8 w - - acd 27; acs 1; bm fxe8=Q+; ce 32742; dm 13; pm fxe8Q+; pv fxe8Q+ Rxe8 bxc8Q+ Rxc8 Nxc6+ Qxc6 Nxe6+ Qxe6 Be7+ Qexe7 Qexe7+ Qxe7 Qxe7+ Kxe7 Qe2+ Be3+ Qxe3+ Qe6 Qexe6+ Bxe6 Qa3+ Bb4 Qxb4+ Rc5 Qbxc5+;

Code: Select all

info depth 19 seldepth 38 multipv 1 score mate 12 nodes 131794031 nps 1972521 hashfull 501 tbhits 0 time 66815 pv c7e6 f5e6 f7e8q f8e8 e7c6 b5c6 b7c8q b8c8 g8e8 f6e8 g4g5 e8f6 a8c8 b6c8 a4a5 c8b6 c5c6 e6d5 c6d5 a7b7 d6c7 b7c7 e5e8
[d]rr4k1/4ppBp/p2p2pQ/8/3R4/1Pq2P2/P5PP/1K5R b - - acd 27; acs 1; bm Rxb3+; c3 "Rxb3+"; ce 32742; dm 13; id "Emms.675H"; pm Rxb3+; pv Rxb3+ axb3 Qxb3+ Kc1 Rc8+ Kd2 Rc2+ Ke1 Qe6+ Re4 Qa2 Kf1 Rf2+ Ke1 Rxg2 Bb2 Qxb2 Qxh7+ Kxh7 Rh4+ Kg7 Rh7+ Kxh7 Kd1 Qa1+;

Code: Select all

info depth 17 seldepth 41 multipv 1 score cp 6969 nodes 658693 nps 1737976 tbhits 0 time 379 pv b8b3 a2b3 c3b3 b1c1 a8c8 c1d2 b3c2 d2e1 c2g2 h1f1 g6g5 f1f2 g2g1 e1e2 c8c2 d4d2 c2d2 e2d2 g1f2 d2c1 f2e3 c1b1 f7f6 g7f8 g8f7 f8g7 e3e1 b1b2 e1e2 b2c1 g5g4 f3g4 e2g4 g7f6 e7f6
info depth 18 seldepth 54 multipv 1 score mate 13 nodes 1389858 nps 1798005 tbhits 0 time 773 pv b8b3 a2b3 c3b3 b1c1 a8c8 c1d2 c8c2 d2e1 b3e6 d4e4 e6a2 e1f1 c2f2 f1e1 f2g2 g7b2 a2b2 h6h7 g8h7 e4h4 h7g7 h4h7 g7h7 h2h3 b2b1
...
info depth 29 seldepth 25 multipv 1 score mate 13 nodes 164501686 nps 2185168 hashfull 984 tbhits 0 time 75281 pv b8b3 a2b3 c3b3 b1c1 a8c8 c1d2 c8c2 d2e1 b3e6 d4e4 e6a2 e1f1 c2f2 f1e1 f2g2 g7b2 a2b2 h6h7 g8h7 e4h4 h7g7 h4h7 g7h7 h2h3 b2e2
[d]rq5k/6p1/2bpQpPN/6p1/np6/pp6/6p1/KR3n2 w - - acd 27; acs 38; bm Nf7+; c2 "#13; 00:00 @ C2/R1/K3/P8/X36;"; ce 32742; dm 13; id "ChestDB.5072"; pm Nf7+; pv Nf7+ Kg8 Nxg5+ Kh8 Nf7+ Kg8 Nxd6+ Kh8 Qh3+ Kg8 Qxb3+ Kh8 Qh3+ Kg8 Qe6+ Kh8 Rxb4 Qxb4 Nf7+ Kg8 Nh6+ Kh8 Qg8+ Rxg8 Nf7#;

Code: Select all

info depth 27 seldepth 52 multipv 1 score cp 9943 nodes 55215404 nps 1882043 hashfull 728 tbhits 0 time 29338 pv h6f7 h8g8 f7d6 g8h8 d6f7 h8g8 f7g5 g8h8 g5f7 h8g8 f7e5 g8h8 e6h3 h8g8 h3b3 g8h8 e5f7 h8g8 f7d8 g8h8 b3h3 h8g8 h3e6 g8h8 d8f7 h8g8 b1b4 c6d5 e6d5 g8f8 b4b8 a8b8 d5d6 f8e8 d6b8 e8d7 b8b7 d7e6 b7e4 e6d7 e4a4 d7e7 a4e4 e7f8
info depth 28 seldepth 52 multipv 1 score mate 33 lowerbound nodes 55302075 nps 1882239 hashfull 731 tbhits 0 time 29381 pv h6f7
info depth 28 seldepth 52 multipv 1 score mate 20 lowerbound nodes 55303015 nps 1882271 hashfull 731 tbhits 0 time 29381 pv h6f7
info depth 28 seldepth 52 multipv 1 score mate 13 nodes 56011674 nps 1881733 hashfull 735 tbhits 0 time 29766 pv h6f7 h8g8 f7g5 g8h8 g5f7 h8g8 f7d6 g8h8 e6h3 h8g8 h3b3 g8h8 b3h3 h8g8 h3e6 g8h8 b1b4 b8b4 d6f7 h8g8 f7h6 g8h8 e6g8 a8g8 h6f7
[d]rb6/r1p5/P7/p1P2K1p/2pppp1k/B6p/7P/4q2R w - - acd 25; acs 385; bm c6; c2 "#12; 00:00 @ C0/R2/K1/P8/X21;"; c3 "c6"; ce 32744; dm 12; id "ChestDB.4835"; pm c6; pv c6 Qb4 Bxb4 axb4 Rf1 f3 Re1 e3 Rd1 d3 Rc1 c3 Rb1 Rb7 cxb7 c5 bxa8=Q Bxh2 Qg8 Bf4 Kxf4 c2 Qg3#;

Code: Select all

info depth 26 seldepth 53 multipv 1 score cp 9999 lowerbound nodes 116025581 nps 2036965 hashfull 550 tbhits 0 time 56960 pv c5c6
info depth 26 seldepth 53 multipv 1 score mate 34 lowerbound nodes 116074324 nps 2037106 hashfull 550 tbhits 0 time 56980 pv c5c6
info depth 26 seldepth 53 multipv 1 score mate 12 nodes 116149648 nps 2037212 hashfull 550 tbhits 0 time 57014 pv c5c6 e1b4 a3b4 a5b4 h1f1 f4f3 f1e1 e4e3 e1d1 d4d3 d1c1 c4c3 c1b1 a7b7 c6b7 c7c5 b7a8q b8h2 a8g8 h2f4 f5f4 e3e2 g8g3
[d]rr6/4R3/8/3N3b/1p5p/PPpB4/1nPp1p2/1K1k2b1 w - - acd 15; acs 1; bm Ne3+; c3 "Ne3+"; c4 "Nd5e3+ (krabbe) 215"; ce 32754; dm 7; id "(krabbe) 215"; pm Ne3+; pv Ne3+ Ke1 Nc4+ Kd1 Nxb2+ cxb2 c4 Be2 Bxe2+ Ke1 Bg4+ Kf1 Bh3#;

Code: Select all

info depth 9 seldepth 6 multipv 1 score cp 5000 nodes 24431 nps 1879307 tbhits 0 time 13 pv d5e3 d1e1 e3g2 e1d1
info depth 10 seldepth 13 multipv 1 score mate 7 nodes 33490 nps 1860555 tbhits 0 time 18 pv d5e3 d1e1 e3c4 e1d1 c4b2 c3b2 c2c3 h5e2 d3e2 d1e1 e2d3 e1d1 d3c2
...
nfo depth 21 seldepth 13 multipv 1 score mate 7 nodes 15691960 nps 2746711 hashfull 682 tbhits 0 time 5713 pv d5e3 d1e1 e3c4 e1d1 c4b2 c3b2 c2c3 h5e2 d3e2 d1e1 e2d3 e1d1 d3c2
[d]1b1r1r2/1b4Q1/4Pp1N/1pP1k2n/2p3R1/4NP2/5BBK/8 w - - acd 17; acs 142; bm Qe7 Qxb7; c0 "Sydney Morning Herald;????;CHARLICK Arthur Robert Baker;#2"; ce 32752; dm 8; pm Qe7 Qxb7; pv Qe7 Nf4 Qxb7 Kd4 Nd1+ Kd3 Qe4+ Kd2 Be3+ Kxd1 Qb1+ Ke2 Qc2+ Rd2 Qxd2#;

Code: Select all

info depth 17 seldepth 34 multipv 1 score cp 10000 nodes 4378754 nps 2099115 hashfull 519 tbhits 0 time 2086 pv g7b7 f6f5 f2g3 h5f4 g3f4 e5d4 e6e7 d4c3 e7f8q d8f8 b7g7 b8e5 g7e5 c3b3 c5c6 b5b4 e3f5 b3a4 g2f1 f8a8 e5a1 a4b5 a1a8 b4b3 a8b7 b5a4 f1c4
info depth 18 seldepth 35 multipv 1 score mate 9 nodes 6217776 nps 2112016 hashfull 529 tbhits 0 time 2944 pv g7b7 e5e6 f3f4 d8d7 b7e4 b8e5 e3d5 d7d5 e4d5 e6e7 d5b7 e7d8 h6f7 f8f7 g4g8 f7f8 g8f8
...
info depth 21 seldepth 24 multipv 1 score mate 8 nodes 14781587 nps 1962244 hashfull 764 tbhits 0 time 7533 pv g7b7 e5e6 f3f4 d8d7 b7e4 b8e5 e3d5 d7d5 e4d5 e6e7 f4e5 e7e8 g4d4 f8f7 d5f7
info depth 22 seldepth 15 multipv 1 score mate 8 nodes 435303241 nps 2370338 hashfull 999 tbhits 0 time 183646 pv g7b7 e5e6 f3f4 d8d7 b7e4 b8e5 e3d5 d7d5 e4d5 e6e7 f4e5 e7e8 g4d4 f8f7 d5f7
[d]1b4Rr/p4n1Q/3BpKN1/6p1/6q1/r7/4p1kP/5nNb b - - acd 51; acs 15; bm Qd4+; c0 "2PR Messigny; 2002; Avner=U; H#2 2.1...; 1-0; Annotator: 2007_URAL-PROBLEMIST_10"; c3 "Nh6"; c5 "http://lecoursdumaitre.e-monsite.com"; ce 32752; dm 8; pm Qd4+; pv Qd4+ Ne5 Rxh7 Rg7 Qf4+ Kxe6 Rxg7 Nxf7 Qxf7+ Ke5 e1=Q+ Ne2 Qxe2+ Kd4 Qfc4+;

Code: Select all

info depth 14 seldepth 27 multipv 1 score cp 10000 nodes 966668 nps 1754388 tbhits 0 time 551 pv g4f5 f6g7 h8h7 g7h7 e2e1q d6g3 b8g3 h2g3 g2g1 g8e8 f7e5 e8g8 f1g3 h7h6 f5g6 g8g6 e5g6 h6g6 e1e5 g6f7 g1f1
info depth 15 seldepth 26 multipv 1 score mate 13 nodes 1367107 nps 1808342 tbhits 0 time 756 pv g4f5 f6g7 h8h7 g7h7 e2e1q d6g3 b8g3 g8g7 g3e5 g1f3 a3f3 h7g8 f3h3 g8f8 e1b4 f8e8 h3h8 g6h8 f7d6 e8d8 b4b6 d8d7 b6b7 d7d8 f5f8
info depth 16 seldepth 23 multipv 1 score mate 11 nodes 1742713 nps 1791071 tbhits 0 time 973 pv g4f5 f6g7 h8h7 g7h7 e2e1q d6g3 b8g3 g8g7 g3e5 h7g8 f7h6 g8h7 e1h4 g1f3 a3f3 h2h3 h6f7 h7g8 h4h8 g6h8 f7h6
...
info depth 22 seldepth 19 multipv 1 score mate 8 nodes 92952413 nps 1945099 hashfull 991 tbhits 0 time 47788 pv h8h7 g6f4 g2h2 g8g7 g4f5 f6e7 f7d6 g1f3 a3f3 g7h7 f5h7 e7e6 f3f4 e6e5 e2e1r
[d]1B2bK2/2N5/4rnpp/1p1rk1P1/1P1n1RP1/2PP1p2/2P2P2/4q3 b - - acd 60; acs 15; bm Kxf4; c0 "1PR StrateGems; 2005; Gurov=V; H#2 4.1...; 1-0; Annotator: 2008_AZE-CH-29_10"; c3 "Qxc3"; c5 "http://lecoursdumaitre.e-monsite.com"; ce 32750; dm 9; pm Kxf4; pv Kxf4 Nxd5+ Kxg5 Bf4+ Kxg4 cxd4 Nxd5 Be5 Qxb4+ Kg8 Qe7 Bg7 Qf7+ Kh7 Re7 Kxh6 Qxg7+;

Code: Select all

info depth 14 seldepth 24 multipv 1 score cp 10000 nodes 1023853 nps 2211345 tbhits 0 time 463 pv e5f4 c7d5 f4g5 b8a7 d4c2 d5e3 e1f2 c3c4 c2e3 c4b5 f2d2 a7c5 d2d3 b5b6 g5g4 f8g7 e3f5 g7f8
info depth 15 seldepth 26 multipv 1 score mate 10 nodes 2472747 nps 2221695 hashfull 479 tbhits 0 time 1113 pv e5f4 c7d5 f4g5 d5e3 e1c3 b8f4 g5f4 e3d5 f6d5 g4g5 c3b4 f8g8 f4g5 c2c3 b4e7 c3d4 d5f6 g8h8 e7f8
info depth 16 seldepth 19 multipv 1 score mate 10 nodes 2527048 nps 2203180 hashfull 481 tbhits 0 time 1147 pv e5f4 c7d5 f4g5 d5e3 e1c3 e3d5 f6d5 f8g8 c3b4 b8f4 g5f4 g4g5 f4g5 c2c3 d5f6 g8g7 d4f5 g7h8 b4f8
info depth 17 seldepth 19 multipv 1 score mate 9 nodes 2789294 nps 2175736 hashfull 491 tbhits 0 time 1282 pv e5f4 c7d5 f4g5 d5e3 e1c3 e3d5 f6d5 f8g8 d5f6 g8f8 c3b4 b8d6 b4d6 f8g7 d6e7 g7h8 e7f8
...
info depth 24 seldepth 17 multipv 1 score mate 9 nodes 88854368 nps 2062687 hashfull 999 tbhits 0 time 43077 pv e5f4 c7d5 f4g5 b8f4 g5g4 c3d4 f6d5 f4e5 e1b4 f8g7 b4e7 g7g8 e7f7 g8h8 e6e7 c2c4 f7f8
[d]1k2q3/3p4/K2p4/8/R7/R7/8/8 w - - acd 21; acs 8; bm Rb4+; c0 "6 Commendation, jb07 @1 @2 {m}; 1980; Zachodjakin G; 1-0"; c3 "Rb3+"; ce 32748; dm 10; id "yacpdb id 293022"; pm Rb4+; pv Rb4+ Kc8 Rc3+ Kd8 Rb8+ Ke7 Re3+ Kf7 Rbxe8 d5 Re1 d4 R8e2 d3 Rf2+ Kg7 Rg1+ Kh7 Rh2#;
4 f4f3 e8e4 f3f2 d5f5 f2g3 d4e3

Code: Select all

info depth 19 seldepth 32 multipv 1 score cp 10000 nodes 684008 nps 2400028 tbhits 0 time 285 pv a4b4 b8c8 a3c3 c8d8 b4b8 d8e7 c3e3 e7f6 e3e8 f6g6 e8e7 d6d5 e7d7 g6f5 a6b5 d5d4 d7d4 f5f6 d4d5 f6f7 b5c6 f7g6 c6d7 g6f6 b8d8 f6g7
info depth 20 seldepth 34 multipv 1 score mate 24 nodes 755878 nps 2376974 tbhits 0 time 318 pv a4b4 b8c8 a3c3 c8d8 b4b8 d8e7 c3e3 e7f6 e3e8 d6d5 b8d8 f6f7 e8e3 f7f6 d8d7 f6g6 e3e8 g6f6 d7d5 f6f7 e8d8 f7g6 d8f8 g6g7 d5d8 g7g6 d8d6 g6g5 a6b5 g5h4
info depth 21 seldepth 38 multipv 1 score mate 17 nodes 936419 nps 2370681 tbhits 0 time 395 pv a4b4 b8c8 a3c3 c8d8 b4b8 d8e7 c3e3 e7f6 e3e8 d6d5 b8d8 f6f7 e8e1 d5d4 d8d7 f7g6 d7d4 g6f5 d4d5 f5g4 e1e3 g4f4 e3e8 f4f3 d5f5 f3g4 f5f7 g4h5 e8g8 h5h6 f7d7 h6h5 d7h7
info depth 22 seldepth 33 multipv 1 score mate 10 nodes 1082928 nps 2417250 tbhits 0 time 448 pv a4b4 b8c8 a3c3 c8d8 b4b8 d8e7 c3e3 e7f6 e3e8 d6d5 e8e1 f6f7 b8b2 d5d4 b2f2 f7g7 e1g1 g7h7 f2h2
[d]1b2K2n/3pB1p1/R3p1pp/2p1k3/2Pp2P1/6P1/3N4/8 w - - acd 23; acs 48; bm Bf8; c2 "#11; 00:00 @ C2/R1/K2/P7/X10;"; ce 32746; dm 11; id "yacpdb id 67540"; pm Bf8; pv Bf8 Kf6 Ne4+ Ke5 Nxc5 Kf6 Ne4+ Ke5 Nd2 Kf6 Be7+ Ke5 Kxd7 d3 Rxe6+ Kd4 Bb4 Be5 Rxe5 Kxe5 Bc3+;

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info depth 20 seldepth 34 multipv 1 score cp 9918 nodes 1369281 nps 2285944 tbhits 0 time 599 pv e7f8 e5f6 d2e4 f6e5 e4c5 e5f6 c5d7 f6g5 d7b8 g5g4 f8g7 g4g3 g7h8 g6g5 h8d4 h6h5 a6e6 g5g4 e8f7 g3f3 f7g6 h5h4 g6g5 h4h3 e6f6 f3e4 b8c6
info depth 21 seldepth 34 multipv 1 score mate 11 nodes 2067602 nps 2230422 tbhits 0 time 927 pv e7f8 e5f6 d2e4 f6e5 e4c5 e5f6 c5e4 f6e5 e4d2 e5f6 f8e7 f6e5 e8d7 d4d3 a6e6 e5d4 e7b4 b8e5 e6e5 d4e5 b4c3
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MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: MateFinder 9

Post by MikeB »

zullil wrote: ↑Tue Mar 06, 2018 12:37 pm
BBauer wrote:May be your position is too difficult. Try a #5.

[d]rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1
Current SF could not solve it in some hours. One thread, slow computer.
Kind regards
Bernhard
Almost two days, and SF-dev (1 thread) still hasn't found the mate in 5. In fact, this search has taken so long that this SF-dev is no longer the current SF-dev!

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info depth 75 seldepth 90 multipv 1 score cp -29 nodes 1053586662484 nps 6481904 hashfull 999 tbhits 0 time 162542754 pv e6d5 b8c8 d5a8 c7c4 e5g7 b5b4 g6h6 c8c7 a8d5 c4c5 d5e4 c5a5 g7d4 a5a6 h6g5 a6a3 g5f4 c7d6 e4f3 a7a5 f4e4 a5a4 f3d1 b4b3 e4d3 b3b2 d3c2 b2b1q c2b1 a3d3 d1a4 d3d4 a4b3 d4d2 b1c1 d2f2 b3c2 d6c5 c1d1 c5d4 c2b1 f2g2 b1f5 d4c3 d1e1 g2b2 f5g4 c3d4 g4f5 d4e3 e1d1 b2e2 f5b1 e2d2 d1c1 d2h2 c1d1 e3d4 b1f5 d4c3 f5g6 h2b2 g6e4 b2d2 d1e1 d2a2 e4f5 c3d4 f5e6 a2g2 e1d1 d4e5 e6b3 e5f4 b3e6 g2f2 e6c4 f4f3 c4e6 f3g3 d1e1 g3g2 e6c8 g2f3
A hybrid between Crystal and Honey: Single core, no EGTB

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info depth 27 seldepth 72 multipv 1 score cp 4414 upperbound nodes 37919354 nps 1694038 hashfull 938 tbhits 0 time 22384 pv e6d5 b8c8
info depth 27 currmove e6d5 currmovenumber 1
info depth 27 seldepth 72 multipv 1 score cp 4577 lowerbound nodes 38903879 nps 1694936 hashfull 941 tbhits 0 time 22953 pv e6d5
info depth 27 seldepth 102 multipv 1 score mate 7 lowerbound nodes 40112712 nps 1696887 hashfull 941 tbhits 0 time 23639 pv e6d7
info depth 27 seldepth 102 multipv 1 score mate 5 nodes 40127238 nps 1696927 hashfull 941 tbhits 0 time 23647 pv e6d7 b5b4 g6f7 h6h5 f7e7 g7g6 e7d8 h5h4 e5c7
single core , 7 man syzygy

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info depth 21 seldepth 51 multipv 1 score mate 5 nodes 3289179 nps 892343 hashfull 935 tbhits 135226 time 3686 pv e6d7 b5b4 g6f7 b4b3 f7e8 b3b2 e8d8 b2b1q e5c7
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