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Fun mate in 10

Posted: Sat Apr 13, 2019 10:05 am
by xr_a_y
From an interesting lichess game Minic/Topple

[d] 3r3k/1b2q2p/p3rb1P/1p3Rp1/4p1Q1/PBP1P1P1/6K1/5R2 w - - 0 48

https://lichess.org/TSg2u1Xo/white#94

Is there already a forced mate here ?

[d] 3r3k/1b2q2p/pr3b1P/1p3Rp1/3Np1Q1/PBP1P1P1/6K1/5R2 w - - 23 47

Re: Fun mate in 10

Posted: Sat Apr 13, 2019 11:17 am
by F. Bluemers
24 +1000.11 Ne6 Bd5 Bxd5 Rxd5 Rxf6 Rb8 Rf7 Qxf7 Rxf7 Rd2+ Kf1 Kg8 Qf5 Rd1+ Ke2 Rd2+ Kxd2 Rd8+ Nxd8 b4 Qxh7# (3.18)

Re: Fun mate in 10

Posted: Sat Apr 13, 2019 11:26 am
by Eelco de Groot
There's a Mate in 7 also I think :)

Re: Fun mate in 10

Posted: Tue Apr 16, 2019 12:05 am
by Vinvin
xr_a_y wrote: Sat Apr 13, 2019 10:05 am ...
Is there already a forced mate here ?

[d] 3r3k/1b2q2p/pr3b1P/1p3Rp1/3Np1Q1/PBP1P1P1/6K1/5R2 w - - 23 47
It seems so :

FEN: 3r3k/1b2q2p/pr3b1P/1p3Rp1/3Np1Q1/PBP1P1P1/6K1/5R2 w - - 23 47

Code: Select all

Stockfish_190305_x64_modern:
Found 511 tablebases
...
 23/28+	00:05	 63 556 671	11 600 049	+39,97	47.Be6
 23/28-	00:05	 63 665 178	11 602 911	+23,66	47.Be6 Bg7
 23/28+	00:05	 64 483 130	11 606 034	+37,62	47.Be6
 23/28+	00:05	 68 440 203	11 669 258	+64,35	47.Be6
 23/28	00:05	 68 547 178	11 667 604	+32,97	47.Be6 Bd5 48.Rxf6 Bc4 49.R1f2 Qc5 50.Rf7 Bd3 51.Rg7 Qe5 52.Rxg5 Rxe6 53.Nxe6 Bf1+ 54.Kxf1 Qf6 55.Rxf6 Rc8 56.Qxe4 b4 57.axb4 a5 58.Rxa5
 24/26+	00:05	 69 281 236	11 667 436	+33,06	47.Be6
 24/26+	00:06	 70 108 375	11 678 889	+33,15	47.Be6
 24/26+	00:06	 70 663 459	11 685 705	+45,66	47.Be6
 24/26-	00:06	 70 666 213	11 686 160	+27,08	47.Be6 Bd5
 24/26+	00:06	 71 533 913	11 677 099	+40,28	47.Be6
 24/26+	00:06	 74 083 822	11 699 908	+105,24	47.Be6
 24/26-	00:06	 74 316 674	11 697 886	+21,80	47.Be6 Bd5
 24/26+	00:06	 75 880 509	11 717 187	+74,70	47.Be6
 24/26+	00:06	 77 854 085	11 732 080	+143,86	47.Be6
 24/28	00:06	 79 628 491	11 720 413	+M14	47.Be6 Bd5 48.Rxf6 Bc4 49.R1f2 Qc5 50.Rf7 Bd3 51.Rg7 Bf1+ 52.Kg1 Qe5 53.Rff7 Rxe6 54.Rxh7+ Kg8 55.Rfg7+ Qxg7 56.Rxg7+ Kh8 57.Qxg5 Re7 58.Rxe7 Rg8 59.Qe5+ Rg7 60.Qxg7+
 25/28	00:07	 84 853 860	11 619 041	+M13	47.Be6 Bd5 48.Rxf6 Bc4 49.R1f2 Qc5 50.Rf7 Bd3 51.Rg7 Bf1+ 52.Kg1 Qe5 53.Rff7 Rxe6 54.Qxe6 Qxg3+ 55.Kxf1 Qf3+ 56.Nxf3 Rd1+ 57.Ke2 exf3+ 58.Kxd1 f2 59.Rf8+
 26/24	00:07	 87 906 059	11 601 697	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 27/24	00:07	 88 836 912	11 589 942	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 28/24	00:07	 91 173 579	11 568 783	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 29/24	00:08	 93 475 675	11 535 934	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 30/24	00:08	 96 049 288	11 511 180	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 31/24	00:08	 98 200 237	11 489 439	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 32/24	00:08	 102 540 949	11 444 302	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 33/24	00:09	 107 273 779	11 438 875	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 34/24	00:09	 111 086 125	11 423 912	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 35/24	00:10	 115 922 245	11 392 849	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 36/24	00:10	 119 625 644	11 372 339	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 37/24	00:11	 131 589 229	11 346 833	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 38/24	00:11	 135 955 807	11 343 830	+M12	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Rf7 Bc8 51.Qxe4 Rd2+ 52.Kg1 Qxf7 53.Rxf7 Rd1+ 54.Kg2 Rd2+ 55.Rf2 Bh3+ 56.Kxh3 g4+ 57.Qxg4 Rxf2 58.Qg7+
 39/24	00:13	 148 407 789	11 338 359	+M11	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Qf5 Bc8 51.Qe5 Rd5 52.Qe8 Rd2+ 53.Kh1 Be6 54.Rf8 Rh2+ 55.Kxh2 g4 56.Rxg8+ Bxg8 57.Qe5+
 40/22	00:13	 154 584 176	11 329 828	+M11	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Qf5 Bc8 51.Qe5 Rd5 52.Qe8 Rd2+ 53.Kh1 Be6 54.Rf8 Rh2+ 55.Kxh2 g4 56.Rxg8+ Bxg8 57.Qe5+
 41/22	00:14	 168 815 834	11 335 247	+M11	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Qf5 Bc8 51.Qe5 Rd5 52.Qe8 Rd2+ 53.Kh1 Be6 54.Rf8 Rh2+ 55.Kxh2 g4 56.Rxg8+ Bxg8 57.Qe5+
 42/22	00:15	 180 866 667	11 341 025	+M11	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Qf5 Bc8 51.Qe5 Rd5 52.Qe8 Rd2+ 53.Kh1 Be6 54.Rf8 Rh2+ 55.Kxh2 g4 56.Rxg8+ Bxg8 57.Qe5+
 43/22	00:16	 187 870 363	11 333 194	+M11	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Qf5 Bc8 51.Qe5 Rd5 52.Qe8 Rd2+ 53.Kh1 Be6 54.Rf8 Rh2+ 55.Kxh2 g4 56.Rxg8+ Bxg8 57.Qe5+
 44/22	00:17	 198 458 290	11 346 957	+M11	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.Qf5 Bc8 51.Qe5 Rd5 52.Qe8 Rd2+ 53.Kh1 Be6 54.Rf8 Rh2+ 55.Kxh2 g4 56.Rxg8+ Bxg8 57.Qe5+
Ne6 and Be6 are both mate in 11 :

Code: Select all

Matefinder_190305:
...
 28/22	00:01	 15 340 649	10 457 156	+M11	47.Ne6 Rxe6 48.Bxe6 Qxe6 49.Rxf6 Qg8 50.R6f2 Bc8 51.Qxe4 Bb7 52.Qxb7 b4 53.Qe7 Qd5+ 54.Kg1 Qg2+ 55.Rxg2 Rg8 56.Qe5+ Rg7 57.Qxg7+
 28/22	00:01	 15 340 649	10 457 156	+M11	47.Be6 Rxe6 48.Nxe6 Qxe6 49.Rxf6 Qg8 50.R6f2 Bc8 51.Qxe4 Bb7 52.Qxb7 b4 53.Qe7 Qd5+ 54.Kg1 Qg2+ 55.Rxg2 Rg8 56.Qe5+ Rg7 57.Qxg7+

Re: Fun mate in 10

Posted: Tue Apr 16, 2019 7:24 am
by xr_a_y
Wow found in 0.1 sec ? it took Minic one hour ...