fun mates again

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Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: fun mates again

Post by Vinvin »

Dann Corbit wrote: ↑Sun Apr 25, 2021 1:49 am I was intrigued enough to give a stronger try, but I think it will be very hard to drive to mate:

Code: Select all

FEN: r1k4r/1p1b4/p3pP1p/q7/1b2N3/6Q1/P1P3PP/1R1R2K1 w - - 0 1

ShashChess16-x86-64-avx2:
Found 746 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
45/75	1:05:33	294,676,841k	74,924k	+48.93	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Qxc2 Qd6 Qc7 Qf8+ Qd8 Qg7 Kb8 Rxd7 Qb6 h3 Ka7 f7 Rc8 Kh2 Qb5 Qd4+ Qb6 Qxb6+ Kxb6 Ng6 Ra8 Re7 Kc5 Kh1 Kd4 Rxe6 Rc8 Kh2 Kc4 Ne5+ Kb5 Nd7 Rd8 Re5+ Kc6 f8Q Rxf8 Nxf8 Kd6 Re8 h5 Re6+ Kc7 Rh6 h4 Rxh4 b5 Rh6 a5 Rh5 Kc6 Nd7 b4 Rc5+ Kxd7
 46/8-	1:05:33	294,677,592k	74,924k	+48.42	Rxb4 Qxb4
 46/8-	1:05:33	294,685,379k	74,924k	+48.34	Rxb4 Qxb4
 46/66-	1:06:03	296,988,374k	74,937k	+45.71	Rxb4 Qxb4
 46/66+	1:06:24	298,598,848k	74,946k	+46.20	Rxb4
 46/66+	1:06:30	299,055,312k	74,948k	+47.12	Rxb4
 46/70-	1:06:39	299,781,472k	74,950k	+44.92	Rxb4 Qxb4
 46/70-	1:06:46	300,286,564k	74,952k	+39.12	Rxb4 Qxb4
 46/70+	1:06:48	300,447,905k	74,953k	+41.19	Rxb4
 46/70+	1:08:03	306,195,658k	74,985k	+49.74	Rxb4
 46/73	1:09:13	311,631,370k	75,035k	+51.00	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 e5 f7 Kb8 Qe3 Bc6 Rd8+ Kc7 Rxa8 Qb1+ Kf2 Qxc2+ Qe2 Qc5+ Kg3 Qa3+ Kg4 Qa4+ Kh5 Qf4 h4 Qf5+ Kxh6 Qf6+ Kh7 Qe7 Kg7 Bd5 Qc2+ Kb6 Qb2+ Kc7 Qc3+ Kb6 Re8 Qd7 Qb4+ Kc6 Re7 Qd6 Qc3+ Kb5 Rxe5 a5 Rxd5+ Qxd5 Qb2+ Kc4 f8Q Qd4+ Qxd4+ Kxd4 Ng6 Kd3 h5 Kc3 Qc5+ Kd3 Qd5+ Ke2 Qf3+ Kd2 Qa3
 47/38-	1:09:15	311,804,776k	75,036k	+50.80	Rxb4 Qxb4
 47/38-	1:09:15	311,805,077k	75,036k	+49.98	Rxb4 Qxb4
 47/65-	1:10:15	316,432,534k	75,060k	+43.31	Rxb4 Qxb4
 47/65+	1:10:16	316,496,859k	75,061k	+44.56	Rxb4
 47/77+	1:10:50	319,102,625k	75,076k	+49.97	Rxb4
 47/77	1:11:04	320,196,020k	75,083k	+50.37	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Qxc2 Qd6 Qc7 Qf8+ Qd8 Qg7 Kb8 Rxd7 Qb6 h3 Ka7 f7 h5 Ng6 Rc8 Kh2 Qb5 Qd4+ Qb6 Qxb6+ Kxb6 Re7 Kb5 Rxe6 a5 Re5+ Kb4 f8Q+ Rxf8 Nxf8 h4 Re4+ Ka3 Rxh4 a4 Rh5 Kb4 Rh6 b5 Ra6 Ka3 Rb6 Kb4 a3+ Kc4 Ne6 Kd5 Rxb5+ Kd6
 48/60-	1:11:04	320,198,351k	75,083k	+50.25	Rxb4 Qxb4
 48/60-	1:11:04	320,198,439k	75,083k	+49.38	Rxb4 Qxb4
 48/60-	1:11:15	321,022,090k	75,084k	+49.28	Rxb4 Bc6
 48/60-	1:11:17	321,156,913k	75,084k	+49.09	Rxb4 Qxb4
 48/60+	1:11:19	321,314,573k	75,085k	+49.46	Rxb4
 48/62-	1:11:30	322,149,709k	75,089k	+48.76	Rxb4 Qxb4
 48/62+	1:11:31	322,247,737k	75,090k	+49.32	Rxb4
 48/62-	1:11:32	322,316,602k	75,090k	+48.27	Rxb4 Qxb4
 48/62-	1:11:32	322,347,494k	75,090k	+47.55	Rxb4 Qxb4
 48/62+	1:11:33	322,374,627k	75,090k	+48.33	Rxb4
 48/62-	1:11:33	322,408,338k	75,090k	+46.62	Rxb4 Qxb4
 48/62-	1:11:35	322,542,450k	75,091k	+45.12	Rxb4 Qxb4
 48/62+	1:11:40	322,950,438k	75,093k	+46.59	Rxb4
 48/72+	1:13:11	329,925,894k	75,136k	+52.00	Rxb4
 48/72	1:13:42	332,379,896k	75,155k	+52.00	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Qxc2 Qd6 Qc7 Qf8+ Qd8 Qg7 Kb8 Rxd7 Qb6 h3 Ka7 f7 Qb4 Ng6 Qb5 Qd4+ Qb6 Qxb6+ Kxb6 Re7 Kb5 Rxe6 Ka4 Kh2 Ka5 Re5+ Kb4 f8Q+ Rxf8 Nxf8 Kc3 Rh5 b5 Nd7 b4 Rxh6 a5 Ra6 Kd2 Nf8 Ke3 Rxa5 Kf4 Ne6+ Ke3 g4
 49/69-	1:14:08	334,401,022k	75,166k	+51.89	Rxb4 Qxb4
 49/69-	1:14:33	336,267,177k	75,176k	+51.62	Rxb4 Qxb4
 49/69-	1:15:10	339,147,906k	75,189k	+47.70	Rxb4 Qxb4
 49/69+	1:15:21	339,976,372k	75,191k	+48.58	Rxb4
 49/69+	1:15:38	341,291,358k	75,201k	+51.98	Rxb4
 49/69	1:16:03	343,264,210k	75,215k	+53.39	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 e5 f7 Qc5+ Kh1 Kc7 Qg7 Rd8 Ng6 Kc8 f8R Rxf8 Nxf8 Bh3 gxh3 Qc6+ Qg2 Kc7 Qxc6+ Kxc6 Nd7 e4 Kg2 Kb5 Rd4 e3 Kf3 e2 Kxe2 a5 Ke3 a4 Kf3 Kc6 Ke4 b5 Rd1 h5 Ne5+ Kb6 Rd7 Kc5 Rd4 Kb6 Rd5 h4 Rd4
 50/12-	1:16:05	343,390,519k	75,216k	+52.60	Rxb4 Qxb4
 50/12-	1:16:08	343,610,442k	75,217k	+52.48	Rxb4 Qxb4
 50/64-	1:16:12	343,979,602k	75,220k	+49.78	Rxb4 Qxb4
 50/64+	1:16:27	345,078,417k	75,229k	+50.38	Rxb4
 50/64+	1:16:29	345,265,335k	75,230k	+51.57	Rxb4
 50/64-	1:16:29	345,276,185k	75,230k	+48.76	Rxb4 Qxb4
 50/64-	1:16:32	345,525,097k	75,231k	+46.86	Rxb4 Qxb4
 50/64+	1:16:40	346,113,751k	75,234k	+48.91	Rxb4
 50/64+	1:16:44	346,430,877k	75,236k	+51.92	Rxb4
 50/68-	1:19:30	359,163,916k	75,294k	+44.47	Rxb4 Qxb4
 50/68-	1:19:45	360,305,608k	75,295k	+39.71	Rxb4 Qxb4
 50/68+	1:21:32	368,518,641k	75,316k	+44.89	Rxb4
 50/68+	1:24:01	380,166,318k	75,402k	+52.38	Rxb4
 50/78	1:27:09	394,978,536k	75,525k	+55.78	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Bc6 Nf7 e5 Rd8+ Kc7 Rxa8 Qxc2 Qxe5+ Kb6 Qd4+ Ka5 Rg8 Qb1+ Qg1 Qxa2 Nxh6 Qb2 Rg3 Qb4 Rg5+ b5 f7 Qe7 Re5 Qd8 Qe1+ Kb6 Qe3+ Ka5 Qc3+ Ka4 Qa1+ Kb4 Rg5 Ba8 Rg4+ Kc5 Qc3+ Kb6 Rg6+ Kb7 Qc6+ Kb8 Rg8 Bxc6 Rxd8+ Kc7 Rc8+ Kxc8 f8Q+ Kb7 Qe7+ Ka8 Qd6
 51/12-	1:27:09	394,979,311k	75,525k	+54.90	Rxb4 Qxb4
 51/64-	1:27:09	394,985,270k	75,525k	+54.42	Rxb4 Qxb4
 51/66-	1:27:19	395,725,440k	75,528k	+51.50	Rxb4 Qxb4
 51/66+	1:27:22	395,998,071k	75,529k	+52.11	Rxb4
 51/66-	1:27:23	396,065,158k	75,529k	+50.57	Rxb4 Qxb4
 51/66+	1:27:24	396,099,414k	75,530k	+51.93	Rxb4
 51/70+	1:27:25	396,171,281k	75,530k	+53.83	Rxb4
 51/70-	1:27:25	396,207,573k	75,531k	+49.07	Rxb4 Qxb4
 51/73+	1:27:28	396,433,295k	75,532k	+52.64	Rxb4
 51/73-	1:27:34	396,885,520k	75,536k	+46.05	Rxb4 Qxb4
 51/73+	1:27:45	397,746,487k	75,543k	+51.24	Rxb4
 51/73+	1:31:04	413,426,162k	75,653k	+57.21	Rxb4
 51/73	1:34:12	428,275,251k	75,770k	+57.74	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 e5 f7 Qc5+ Kh1 Kb8 Ng6 Ka7 Rxd7 Rc8 Qf3 e4 Qxe4 Qb5 Qd4+ Kb8 Qd6+ Ka7 h3 Qf1+ Kh2 Qf2 Qd4+ Qxd4 Rxd4 Rb8 Kg1 Kb6 Rd7 Kb5 Kf1 b6 f8Q Rxf8+ Nxf8 Kc4 Rh7 h5 Rxh5 a5 Rh6 b5 Kg1 Kc3 Rh5 Kd2 Kh2 a4 Kg1 Kd1 Rd5+ Kxc2 Rxb5
 52/63-	1:34:16	428,590,269k	75,771k	+57.65	Rxb4 Qxb4
 52/64-	1:34:17	428,671,106k	75,772k	+57.12	Rxb4 Qxb4
 52/64+	1:34:34	429,993,632k	75,778k	+57.65	Rxb4
 52/64-	1:34:36	430,119,577k	75,778k	+56.99	Rxb4 Qxb4
 52/64-	1:34:41	430,578,893k	75,780k	+56.73	Rxb4 Qxb4
 52/64+	1:34:42	430,634,596k	75,780k	+57.07	Rxb4
 52/64+	1:37:18	442,700,259k	75,827k	+58.79	Rxb4
 52/64-	1:37:20	442,835,980k	75,828k	+56.40	Rxb4 Qxb4
 52/64-	1:37:50	445,162,497k	75,832k	+51.80	Rxb4 Qxb4
 52/64+	1:37:55	445,521,269k	75,833k	+53.49	Rxb4
 52/64-	1:38:04	446,239,188k	75,834k	+49.41	Rxb4 Qxb4
 52/64+	1:38:06	446,406,355k	75,835k	+52.95	Rxb4
 52/64+	1:38:13	446,947,790k	75,837k	+57.71	Rxb4
 52/76	1:47:28	490,703,842k	76,090k	+59.64	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Bc6 Nf7 e5 Rd8+ Kc7 Rxa8 Qxc2 Qxe5+ Kb6 Qd4+ Ka5 Rg8 Qxa2 Nxh6 Qb1+ Qg1 Qb4 Rg4 Qc3 Rg3 Qe5 Qc1 Kb6 Qe3+ Qxe3 Rxe3 Bd5 Ra3 Kb5 Kg1 Kb6 Kf2 Kc5 Rc3+ Kb4 Rg3 Ba2 Rg5 a5 Rg7 Kc3 Rxb7 Bd5 Ra7 Kb2 Rxa5 Be4 f7 Bb1 Kg1
 53/56-	1:47:30	490,802,755k	76,091k	+59.49	Rxb4 Qxb4
 53/56-	1:47:30	490,802,837k	76,091k	+59.32	Rxb4 Qxb4
 53/61-	1:47:30	490,867,425k	76,092k	+56.96	Rxb4 Qxb4
 53/64+	1:47:31	490,940,160k	76,093k	+57.62	Rxb4
 53/68-	1:47:32	491,032,458k	76,094k	+56.34	Rxb4 Qxb4
 53/68-	1:47:33	491,077,415k	76,094k	+51.69	Rxb4 Qxb4
 53/68+	1:47:33	491,101,961k	76,094k	+53.33	Rxb4
 53/68+	1:47:47	492,187,576k	76,106k	+60.13	Rxb4
 53/76	1:50:16	504,190,475k	76,202k	+61.34	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Qxc2 Qd6 Qc7 Qf8+ Qd8 Qg7 Kb8 Rxd7 Qb6 h3 Ka7 f7 Rc8 Kh2 Kb8 Ng6 Ka7 Qe5 Qc6 Qd4+ Kb8 Ne5 Qd5 Qf4 Ka7 Qf2+ Qc5 Qxc5+ Rxc5 Re7 Rc8 Nd7 e5 Re6 Rd8 Rxe5 b5 f8Q Rxf8 Nxf8 Kb7 Re6 h5 Rh6 h4 Rxh4 Kb8 Rh5 Ka8
 54/61-	1:50:17	504,267,866k	76,203k	+61.13	Rxb4 Qxb4
 54/61-	1:50:18	504,315,486k	76,203k	+61.04	Rxb4 Qxb4
 54/61-	1:50:19	504,427,866k	76,203k	+60.14	Rxb4 Qxb4
 54/61+	1:50:24	504,823,469k	76,206k	+60.41	Rxb4
 54/62-	1:50:29	505,221,253k	76,209k	+59.70	Rxb4 Qxb4
 54/68-	1:50:36	505,759,539k	76,212k	+56.86	Rxb4 Qxb4
 54/68+	1:50:36	505,780,834k	76,212k	+57.85	Rxb4
 54/76+	1:50:38	505,914,432k	76,213k	+59.75	Rxb4
 54/76-	1:51:00	507,677,555k	76,225k	+55.32	Rxb4 Qxb4
 54/76+	1:51:55	512,007,333k	76,244k	+58.75	Rxb4
 54/76+	1:56:36	534,532,361k	76,403k	+62.54	Rxb4
 54/76	2:06:13	580,592,990k	76,659k	+64.88	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Qxc2 Qd6 Qc7 Qf8+ Qd8 Qg7 Kb8 Rxd7 Qb6 h3 Ka7 f7 Rc8 Kh2 Ra8 Ng6 Qb4 Qe5 Qb5 Qd6 Qb6 Qxb6+ Kxb6 Kh1 Kc5 Re7 Rc8 Rxe6 Kd4 Re8 Rc1+ Kh2 Rf1 f8Q Rxf8 Nxf8 a5 Re6 h5 Rh6 a4 Nd7 Kd3 Rxh5 Ke2 Ra5 Kd2 Rb5 Kc2 Rxb7
 55/54+	2:06:25	581,530,048k	76,666k	+64.96	Rxb4
 55/54+	2:06:26	581,645,997k	76,666k	+65.04	Rxb4
 55/70+	2:06:54	583,839,777k	76,678k	+65.35	Rxb4
 55/70-	2:07:03	584,622,534k	76,684k	+64.79	Rxb4 Bc6
 55/70-	2:07:06	584,881,768k	76,686k	+64.39	Rxb4 Qxb4
 55/70-	2:07:07	584,940,551k	76,687k	+60.94	Rxb4 Qxb4
 55/70+	2:07:09	585,068,171k	76,687k	+61.82	Rxb4
 55/72+	2:07:14	585,498,135k	76,690k	+65.22	Rxb4
 55/74	2:11:08	604,257,423k	76,797k	+65.98	Rxb4 Qxb4 Nd6+ Kd8 Nf7+ Kc8 Nxh8 Qc5+ Kh1 Qxc2 Qd6 Qc7 Qf8+ Qd8 Qg7 Kb8 Rxd7 Qb6 h3 Ka7 f7 Rc8 Kh2 Qb5 Qd4+ Qb6 Qxb6+ Kxb6 Ng6 Ra8 Kh1 Rb8 Re7 h5 Rxe6+ Kc7 Kh2 Rd8 Re7+ Kb6 Re8 Rd2 Re6+ Kb5 Re5+ Kc6 Nf4 b5 Re7 Rd8 Re8 b4 Rxd8 Kb7 Rb8+ Kc6 Rc8+ Kb6 Nd5+ Kb5 Rc5+ Kxc5 f8Q+ Kc4 Qxb4+ Kxd5 Qb7+ Kd4
 56/61-	2:11:13	604,685,451k	76,799k	+65.88	Rxb4 Qxb4
 56/61-	2:11:13	604,685,530k	76,799k	+65.67	Rxb4 Qxb4
 56/61-	2:11:19	605,155,964k	76,802k	+61.50	Rxb4 Qxb4
 56/61+	2:11:24	605,555,136k	76,804k	+62.28	Rxb4
 56/70+	2:11:40	606,853,130k	76,810k	+63.78	Rxb4
 56/70-	2:11:41	606,889,798k	76,810k	+60.32	Rxb4 Qxb4
 56/70+	2:11:43	607,071,886k	76,811k	+63.00	Rxb4
 56/70+	2:12:26	610,463,782k	76,825k	+66.01	Rxb4
 56/70-	2:12:33	611,080,737k	76,827k	+57.92	Rxb4 Qxb4
 56/70+	2:12:36	611,253,198k	76,828k	+63.86	Rxb4
After the good moves : 1. Rxb4 Qxb4 2. Nd6+ Kd8 3. Nf7+ Kc8 4. Nxh8 e5 5. f7 Qc5+ 6. Kh1 Kc7 7. Ng6
The 4 best moves lead to mate :

Code: Select all

 51/39	01:45	 5.406.978k	51.486k	+M19	7. ... Bb5 8.Nxe5 Kb6 9.a4 Bc6 10.Rb1+ Kc7 11.Nxc6+ Kxc6 12.Qf3+ Qd5 13.Qf6+ Kc7 14.Qe7+ Kc6 15.a5 b5 16.axb6 Qd8 17.b7 Rb8 18.Qxd8 Rxd8 19.b8Q Rxb8 20.Rxb8 Kd5 21.f8Q h5 22.Qf7+ Kd4 23.Rd8+ Kc5 24.Qb7 h4 25.Rd5+ Kc4 26.Qb3+
 51/39	01:45	 5.406.978k	51.486k	+M19	7. ... Be6 8.Nxe5 Kb6 9.Nd3 Qc6 10.Qe3+ Kc7 11.Nb4 Qd6 12.Rxd6 Kxd6 13.Qb6+ Ke7 14.Qxb7+ Kd6 15.Qxa8 Bxf7 16.Qxa6+ Ke7 17.c4 Be6 18.Nd5+ Kf7 19.Qd6 Bxd5 20.cxd5 h5 21.Qe6+ Kg7 22.d6 h4 23.d7 h3 24.d8Q hxg2+ 25.Kxg2 Kh7 26.Qdg8+
 51/39	01:45	 5.406.978k	51.486k	+M19	7. ... Bf5 8.Nxe5 Kb6 9.Rb1+ Ka7 10.Qf3 Rb8 11.Qxf5 Ka8 12.Rd1 Rf8 13.Qf6 Qb4 14.Rd8+ Rxd8 15.Qxd8+ Ka7 16.Qd1 Kb6 17.Nd7+ Kc7 18.f8Q Qxf8 19.Nxf8 Kc6 20.Qd7+ Kc5 21.Ne6+ Kb4 22.Qd3 h5 23.a3+ Ka5 24.Qc3+ Kb5 25.Qc5+ Ka4 26.Qb4+
 51/45	01:45	 5.406.978k	51.486k	+M22	7. ... Bc6 8.Nxe5 Bxg2+ 9.Qxg2 Qxe5 10.Rb1 Kd6 11.Qg6+ Kd5 12.c4+ Kxc4 13.Qc2+ Kd5 14.Qb3+ Kd6 15.Qb6+ Ke7 16.Qxb7+ Ke6 17.Qc6+ Kxf7 18.Rb7+ Qe7 19.Qf3+ Ke8 20.Qh5+ Kf8 21.Qxh6+ Ke8 22.Qh8+ Kf7 23.Qh7+ Ke6 24.Qxe7+ Kf5 25.Qc5+ Kf6 26.Rb6+ Kf7 27.Qc7+ Ke8 28.Rb7 a5 29.Qe7+
Top
Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: fun mates again

Post by Vinvin »

And two moves earlier, after : 1. Rxb4 Qxb4 2. Nd6+ Kd8 3. Nf7+ Kc8 4. Nxh8 e5 5. f7
The 4 best moves lead to mate :

Code: Select all

FEN: r1k4N/1p1b1P2/p6p/4p3/1q6/6Q1/P1P3PP/3R2K1 b - - 0 5

McCain-v2_x64_modern-LMonge:
...
 45/39	01:59	 5.336.790k	44.493k	+M19	5. ... Qf8 6.Qxe5 a5 7.Ng6 Qxf7 8.Qc5+ Kd8 9.Ne5 Qe6 10.Nxd7 Qxd7 11.Qb6+ Kc8 12.Rxd7 Kxd7 13.Qxb7+ Kd6 14.Qxa8 a4 15.Qxa4 Ke5 16.Qb5+ Ke4 17.Qc5 h5 18.a4 h4 19.a5 Kf4 20.a6 h3 21.a7 hxg2 22.a8Q Kg4 23.Qxg2+ Kf4 24.Qcg5+
 46/47	01:59	 5.336.790k	44.493k	+M23	5. ... Bc6 6.Qg8+ Kc7 7.Qxa8 Qc5+ 8.Kh1 Bxg2+ 9.Kxg2 Qxc2+ 10.Kg3 Qxd1 11.f8Q Qg1+ 12.Kh3 Qe3+ 13.Kg2 Qd2+ 14.Kg3 Qg5+ 15.Kf3 e4+ 16.Kxe4 Qg2+ 17.Qf3 Qc2+ 18.Ke5 Qb2+ 19.Kf5 Qb5+ 20.Kf6 Qc6+ 21.Qxc6+ Kxc6 22.Ke5 Kb5 23.Kd5 b6 24.Qc8 Kb4 25.Qc4+ Ka5 26.Qb3 h5 27.Kc6 h4 28.Qa3+
 46/51	01:59	 5.336.790k	44.493k	+M25	5. ... Qc5+ 6.Kh1 Kc7 7.Ng6 Bb5 8.Nxe5 Kb6 9.c4 Bc6 10.Rb1+ Ka7 11.Nxc6+ Qxc6 12.Qe3+ b6 13.Qe7+ Qb7 14.Re1 a5 15.Qxb7+ Kxb7 16.Re8 h5 17.Rxa8 Kxa8 18.f8Q+ Kb7 19.Qf3+ Kc7 20.Qxh5 Kd6 21.Qd5+ Ke7 22.Qb7+ Ke6 23.Qxb6+ Kf7 24.Qd6 Kg7 25.c5 a4 26.Qe6 Kh7 27.c6 Kh8 28.c7 Kh7 29.c8Q Kg7 30.Qcg8+
 46/59	01:59	 5.336.790k	44.493k	+M29	5. ... Kb8 6.Rxd7 Qb6+ 7.Qf2 Qb1+ 8.Qf1 Qb6+ 9.Kh1 Ka7 10.Re7 Rf8 11.Re8 Rxf7 12.Nxf7 e4 13.Nd6 Qxd6 14.Qf2+ e3 15.Qxe3+ b6 16.Qf3 b5 17.Qf7+ Kb6 18.Re6 Qc6 19.c4 bxc4 20.Rxc6+ Kxc6 21.Qxc4+ Kb6 22.Qd5 Kc7 23.a4 h5 24.a5 h4 25.Qc4+ Kd6 26.Qxa6+ Kc5 27.Qb6+ Kd5 28.a6 h3 29.gxh3 Ke5 30.a7 Kf5 31.a8Q Ke5 32.Qh8+ Kf5 33.Qhf6+ Ke4 34.Qbd4+
 46/65	01:59	 5.336.790k	44.493k	+M32	5. ... Kc7 6.Ng6 Ba4 7.Nxe5 Kb6 8.Qf2+ Kc7 9.Kh1 Rc8 10.a3 Qc3 11.Qf6 Qc5 12.Nc4 Rf8 13.Qf4+ Kc8 14.Nd6+ Kb8 15.Qxa4 Qc6 16.Qf4 Qc7 17.Re1 Rxf7 18.Re8+ Ka7 19.Qe3+ b6 20.Nxf7 Qxf7 21.Re7+ Qxe7 22.Qxe7+ Kb8 23.Qf8+ Kb7 24.Qxh6 b5 25.Qd6 a5 26.Qc5 b4 27.a4 Ka6 28.Qb5+ Ka7 29.Qxa5+ Kb8 30.Qxb4+ Kc7 31.Qc5+ Kd7 32.a5 Ke6 33.a6 Kf6 34.a7 Ke6 35.a8Q Kf6 36.Qaf8+ Ke6 37.Qcd6+
These are not the shortest mates, but good upper bound to find the shortest mates.
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Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: fun mates again

Post by Vinvin »

xr_a_y wrote: ↑Tue Aug 10, 2021 7:02 pm White, having a little advantage, just played bishop h4g3 probably thinking "let's disconnect the rooks", but this is a huge mistake ...

[d] 1k4r1/1bq5/pp1p4/2p1p3/4Pn2/P1NBQ1BP/1PP2Pr1/R3R2K b - - 3 28
Mate in 15 in 5 seconds for SF on an AMD 5950x 16*4 GHz :

Code: Select all

Stockfish_21080516_x64_avx2:
Found 511 tablebases
NNUE evaluation using nn-46832cfbead3.nnue enabled
...
 31/22+	00:03	 163.197k	48.269k	+74,15	27. ... Qh7
 31/24-	00:03	 163.251k	48.270k	+64,00	27. ... Qh7 28.Bxf4
 31/28+	00:03	 163.289k	48.267k	+69,79	27. ... Qh7
 31/28+	00:03	 163.623k	48.238k	+M24	27. ... Qh7
 31/28	00:03	 166.682k	47.870k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2
 32/32	00:03	 168.913k	47.648k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 33/32	00:03	 169.198k	47.621k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 34/32	00:03	 169.627k	47.568k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 35/32	00:03	 170.866k	47.476k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 36/32	00:03	 172.163k	47.311k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 37/32	00:03	 173.188k	47.190k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 38/32	00:03	 176.158k	46.913k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 39/32	00:03	 176.663k	46.873k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 40/32	00:03	 180.308k	46.615k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 41/32	00:03	 182.176k	46.485k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 42/32	00:03	 184.658k	46.303k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 43/32	00:04	 187.939k	46.109k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 44/32	00:04	 189.525k	46.012k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 45/32	00:04	 194.905k	45.774k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 46/32	00:05	 248.505k	43.712k	+M16	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 Bc8 34.Bc4 Rh8 35.Rh2 Rxh3 36.Rxh3 Qxh3+ 37.Kg1 Qg3+ 38.Kh1 f3 39.Rxf3 Qxf3+ 40.Kh2 Bh3 41.Bf1 Bxf1 42.b3 Qg2+
 47/30	00:05	 250.149k	43.732k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 48/30	00:06	 276.474k	43.294k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 49/30	00:06	 286.074k	43.077k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 50/30	00:06	 286.650k	43.066k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 51/30	00:06	 293.974k	42.935k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 52/30	00:06	 297.873k	42.878k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 53/30	00:07	 317.876k	42.628k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 54/30	00:07	 335.837k	42.388k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 55/30	00:07	 337.272k	42.366k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 56/30	00:08	 349.476k	42.248k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 57/30	00:08	 367.266k	42.094k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 58/30	00:09	 379.645k	41.991k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 59/30	00:09	 399.553k	41.908k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 60/30	00:10	 455.855k	41.627k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
 61/30	00:11	 460.949k	41.609k	+M15	27. ... Qh7 28.Bxf4 exf4 29.Qf3 Rxf2 30.Rf1 Rxf3 31.Rxf3 Qg7 32.Rf2 Qg3 33.Raf1 f3 34.Rh2 Bc8 35.Ne2 fxe2 36.Bxe2 Bxh3 37.Rf8+ Rxf8 38.Rxh3 Qxh3+ 39.Kg1 Qg3+ 40.Kh1 Rh8+ 41.Bh5 Rxh5+
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User avatar
xr_a_y
Posts: 1871
Joined: Sat Nov 25, 2017 2:28 pm
Location: France

Re: fun mates again

Post by xr_a_y »

Most of the black pieces is hanging here

[d] k5r1/7p/q1Pp3n/4nPPb/2BQpN2/b6r/1PpB1KNP/R3R3 b - - 0 1

yet the number of tactics, checks, forks is so high that the game is over...
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xr_a_y
Posts: 1871
Joined: Sat Nov 25, 2017 2:28 pm
Location: France

Re: fun mates again

Post by xr_a_y »

A forced mate in 6.

[d] r1bqkbnr/pp3ppp/2np4/2pKp3/8/8/PPPPPPPP/RNBQ1BNR w kq - 0 1

Easy for SF but what about your engines ?
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amanjpro
Posts: 883
Joined: Sat Mar 13, 2021 1:47 am
Full name: Amanj Sherwany

Re: fun mates again

Post by amanjpro »

xr_a_y wrote: ↑Sun Aug 22, 2021 8:55 pm A forced mate in 6.

[d] r1bqkbnr/pp3ppp/2np4/2pKp3/8/8/PPPPPPPP/RNBQ1BNR w kq - 0 1

Easy for SF but what about your engines ?
Zahak (dev version), needed depth 28 and 72 seconds to find the mate.
All this with 4 threads and 1024 MB Hash:

Code: Select all

setoption name Hash value 1024
setoption name Threads value 4
position fen r1bqkbnr/pp3ppp/2np4/2pKp3/8/8/PPPPPPPP/RNBQ1BNR w kq - 0 1

Didn't understand 
go infinite
info depth 1 seldepth 1 hashfull 0 nodes 54 nps 419254 score cp -177 time 0 pv e2e4
info depth 2 seldepth 3 hashfull 0 nodes 1157 nps 544019 score cp -301 time 2 pv e2e3 c8e6 d5e4
info depth 3 seldepth 4 hashfull 0 nodes 5524 nps 864542 score cp -319 time 6 pv g1f3 c8e6 d5e4 f8e7
info depth 4 seldepth 5 hashfull 0 nodes 9638 nps 1462724 score cp -331 time 6 pv d5c4 c8e6 c4c3 g8f6 a2a3
info depth 5 seldepth 8 hashfull 0 nodes 16512 nps 710888 score cp -401 time 23 pv e2e3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 e5f4
info depth 6 seldepth 10 hashfull 0 nodes 35989 nps 1342165 score cp -430 time 26 pv d5c4 d8h4 e2e4 h4e4 d2d4 c8e6 c4b5 c6d4 b5a5 d4c2
info depth 7 seldepth 12 hashfull 0 nodes 50138 nps 893615 score cp -478 time 56 pv g1h3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 c5c4 d3e3 f6d5 e3e4 e5f4
info depth 8 seldepth 12 hashfull 0 nodes 88498 nps 1456827 score cp -480 time 60 pv d5c4 d8h4 e2e4 h4e4 d2d4 c8e6 c4c3 c5d4 c3d2 g8f6 c2c4 f6g4
info depth 9 seldepth 13 hashfull 0 nodes 100716 nps 1260847 score cp -474 time 79 pv d5c4 d8h4 e2e4 h4e4 d2d4 c8e6 c4c3 c5d4 c3d2 b7b6 c2c3 g8f6 g1e2
info depth 10 seldepth 12 hashfull 1 nodes 281190 nps 646874 score cp -807 time 434 pv g1h3 c8e6 d5e4 d8h4 e4e3 e6h3 g2g4 h3g4 c2c3 g4f5 f2f3 d6d5
info depth 11 seldepth 22 hashfull 2 nodes 556911 nps 893599 score cp -1145 time 623 pv e2e3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4h5 f3g2 h5d1 b1c3 d1g4 g2f2 g4g6
info depth 12 seldepth 21 hashfull 2 nodes 875801 nps 1246691 score cp -1136 time 702 pv e2e3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4h5 f3f2 h5d1 b1c3 d1c2 f2g1
info depth 13 seldepth 24 hashfull 3 nodes 940880 nps 1279380 score cp -1157 time 735 pv e2e3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4h5 f3f2 h5d1 b1c3 d1c2 f2g1 f6e4 c3d5 e4d2
info depth 14 seldepth 25 hashfull 3 nodes 971669 nps 1283319 score cp -1152 time 757 pv e2e3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4h5 f3f2 h5d1 b1c3 d1c2 f2g1 c2g6 f1g2 f8e7 e3e4
info depth 15 seldepth 25 hashfull 3 nodes 1352853 nps 1705941 score cp -1152 time 793 pv e2e3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4h5 f3f2 h5d1 b1c3 d1c2 f2g1 c2g6 f1g2 f8e7 e3e4
info depth 16 seldepth 27 hashfull 3 nodes 1475439 nps 1522339 score cp -1172 time 969 pv e2e3 c8e6 d5e4 d8h4 f2f4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4h5 f3f2 h5d1 b1c3 d1c2 h1g1 g7g6 f1c4 f8g7 c4b3 c2f5 f2e1
info depth 17 seldepth 31 hashfull 4 nodes 1692395 nps 1491889 score cp -1184 time 1134 pv e2e3 d8h4 f2f4 c8e6 d5e4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4g4 f3f2 g4d1 b1c3 d1c2 f1g2 f8e7 h1e1 e8g8 f2g1 c2g6 b2b3 a8e8 c1b2 g6g4 c3e2
info depth 18 seldepth 34 hashfull 5 nodes 2296815 nps 1629891 score cp -1176 time 1409 pv e2e3 d8h4 f2f4 c8e6 d5e4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4g4 f3f2 g4d1 b1c3 d1c2 h1g1 g7g6 g1g2 f8g7 f2g1 c2f5 g2g5 f5e6 d2d3 e8g8 f1g2 a8e8 c1d2 e6d7
info depth 19 seldepth 35 hashfull 6 nodes 2942127 nps 1770147 score cp -1187 time 1662 pv e2e3 d8h4 f2f4 c8e6 d5e4 g8f6 e4d3 e5e4 d3e2 e6g4 g1f3 e4f3 g2f3 g4f3 e2f3 h4g4 f3f2 g4d1 b1c3 d1c2 f1g2 f8e7 h1e1 e8g8 f2g1 c2g6 e1f1 g6f5 b2b3 a8e8 c1a3 d6d5 a3b2 f5g4 a1c1
info depth 20 seldepth 34 hashfull 86 nodes 11217657 nps 746929 score cp -1429 time 15018 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 c6d4 d1d4 c5d4 g2g3 e6d5 f3f2 f6e4 f2e1 e4g3 h2g3 h4g3 e1d1 d5h1 g1f3 h1f3 e2f3 g3f3 f1e2 f3h1 d1d2 e5f4 e2b5 e8e7 c2c3 d4c3 b1c3 a8c8
info depth 21 seldepth 33 hashfull 113 nodes 22371221 nps 1143894 score cp -1868 time 19557 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 c6d4 d1d4 e6g4 f3e3 e5d4 e3d2 f6e4 d2d3 e4f2 d3d2 f2h1 g1f3 g4f3 d2d3 h1f2 d3c4 d6d5 c4b5 f3e4 c2c3 h4h2 b1d2 e4g2 c3d4 c5d4 f1g2
info depth 22 seldepth 31 hashfull 119 nodes 25911224 nps 1257516 score cp -1916 time 20605 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 c6d4 d1d4 e6g4 f3e3 e5d4 e3d2 f6e4 d2d3 e4f2 d3d2 f2h1 g1h3 g4h3 g2g3 h4h5 f1h3 h5h3 a2a3 h1f2 e2e3 h3h2 e3d4 h2g3 d4c5
info depth 23 seldepth 37 hashfull 140 nodes 40753629 nps 1643053 score cp -1987 time 24803 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 c6d4 d1d4 e6g4 f3e3 e5d4 e3d2 f6e4 d2d3 e4f2 d3d2 f2h1 g1f3 g4f3 b1a3 f3e4 g2g3 h4h2 a3b5 h1g3 b5c7 e8e7 d2e1 g3f1 e1f1 h2g2 f1e1 g2g1 e1d2 g1e3 d2e1
info depth 24 seldepth 38 hashfull 152 nodes 45364079 nps 1658652 score cp -1978 time 27349 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 c6d4 d1d4 e6g4 f3e3 e5d4 e3d2 f6e4 d2d3 e4f2 d3d2 f2h1 g1f3 g4f3 e2f3 h4f4 d2d1 h1f2 d1e2 f4c1 e2f2 c1c2 b1d2 c2d2 f2g1 d4d3 a1b1 d6d5 h2h3 f8d6 g1h1 d2c2
info depth 25 seldepth 36 hashfull 184 nodes 52703832 nps 1501802 score cp -2003 time 35093 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 c6d4 d1d4 e6g4 f3e3 e5d4 e3d2 f6e4 d2d3 e4f2 d3d2 f2h1 g1h3 g4h3 g2g3 h4h5 f1h3 h5h3 a2a3 h1f2 c2c3 h3h2 d2c2 h2g3 c2b3 d4d3 e2e3 d6d5 b3a2 f2e4
info depth 26 seldepth 20 hashfull 212 nodes 63121207 nps 1475538 score mate -10 time 42778 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 e5e4 f3e3 f6d5 e3d2 e4e3 d2d3 h4f4 d3c4 d5b6 c4c3 c5d4 d1d4 f4d4
info depth 27 seldepth 20 hashfull 238 nodes 84826139 nps 1670942 score mate -10 time 50765 pv d2d4 c8e6 d5e4 d8h4 f2f4 g8f6 e4f3 e5e4 f3e3 f6d5 e3d2 e4e3 d2d3 h4f4 d3c4 d5b6 c4c3 c5d4 d1d4 f4d4
info depth 28 seldepth 12 hashfull 314 nodes 107905399 nps 1485743 score mate -6 time 72627 pv e2e3 c8e6 d5e4 d8h4 g2g4 c6b4 f1b5 e8d8 g1e2 h4g4 e2f4 g8f6
info depth 29 seldepth 12 hashfull 327 nodes 141392367 nps 1824258 score mate -6 time 77506 pv e2e3 c8e6 d5e4 d8h4 g2g4 c6b4 f1b5 e8d8 g1e2 h4g4 e2f4 g8f6
info depth 30 seldepth 12 hashfull 348 nodes 150911498 nps 1773741 score mate -6 time 85080 pv e2e3 c8e6 d5e4 d8h4 g2g4 c6b4 f1b5 e8d8 g1e2 h4g4 e2f4 g8f6
info depth 31 seldepth 12 hashfull 369 nodes 163275249 nps 1753416 score mate -6 time 93118 pv e2e3 c8e6 d5e4 d8h4 g2g4 c6b4 f1b5 e8d8 g1e2 h4g4 e2f4 g8f6
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xr_a_y
Posts: 1871
Joined: Sat Nov 25, 2017 2:28 pm
Location: France

Re: fun mates again

Post by xr_a_y »

SF says mate in 9 quite easily but good luck with your own engine :D

[d] 7k/p1p3pp/3pr3/1B4q1/PBnP4/2PQn2P/1PN2rP1/RNK4R b - - 2 23

Minic needs depth 41 to find one good line

Code: Select all

info depth 41 score mate 9 time 277009 nodes 424428480 nps 1532183 seldepth 53 tbhits 0 hashfull 1000 pv g5g2 c2e3 e6e3 b1d2 e3d3 h1e1 g2g6 b5c4 d3d2 e1e8 g6e8 c4e2 e8e2 c1b1 d2b2 b1c1 e2e1
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cc2150dx
Posts: 325
Joined: Sat Nov 30, 2013 9:51 am
Location: Canada
Full name: Jason Coombs

Re: fun mates again

Post by cc2150dx »

Dragon-2-64bit-avx2:

21+ 00:00 15,710k 19,040k +17.83 Qg5xg2 Nc2xe3 Nc4xe3
21 00:01 30,414k 19,452k +M9 Qg5xg2 Nc2xe3 Re6xe3 Nb1-d2 Re3xd3 Rh1-e1 Qg2-g6 Bb5-e8 Qg6-h6 Kc1-c2 Qh6xd2+ Kc2-b3 d6-d5 Re1-b1 Qd2xb2+ Rb1xb2 Rf2xb2+
22 00:08 163,128k 19,779k +M9 Qg5xg2 Nc2xe3 Re6xe3 Nb1-d2 Re3xd3 Rh1-e1 Qg2-g6 Bb5-e8 Qg6-h6 Kc1-c2 Qh6xd2+ Kc2-b3 d6-d5 Re1-b1 Qd2xb2+ Rb1xb2 Rf2xb2+
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xr_a_y
Posts: 1871
Joined: Sat Nov 25, 2017 2:28 pm
Location: France

Re: fun mates again

Post by xr_a_y »

Here is another quite hard #10 starting with a great move

[d] 2kr2r1/5p2/4pQ2/2q1P3/3p1P2/7P/PPP1N1bK/R4R2 b - - 1 22
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cc2150dx
Posts: 325
Joined: Sat Nov 30, 2013 9:51 am
Location: Canada
Full name: Jason Coombs

Re: fun mates again

Post by cc2150dx »

Little longer this time.

Dragon-2-64bit-avx2:

19- 00:04 76,158k 17,630k +23.02 d4-d3 c2xd3
19 00:06 120,659k 17,743k +M10 d4-d3 Qf6xf7 Bg2-d5 Rf1-f3 Bd5xf3 Qf7xe6+ Kc8-b8 Qe6-b3+ Bf3-b7 Qb3xb7+ Kb8xb7 Ne2-d4 Qc5xd4 Ra1-f1 Qd4-e3 c2xd3 Rd8xd3 h3-h4 Qe3-h3+
20 00:08 148,868k 17,807k +M10 d4-d3 Qf6xf7 Bg2-d5 Rf1-f3 Bd5xf3 Qf7xe6+ Kc8-b8 Qe6-b3+ Bf3-b7 Qb3xb7+ Kb8xb7 Ne2-d4 Qc5xd4 Ra1-f1 Qd4-e3 c2xd3 Rd8xd3 h3-h4 Qe3-h3+
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