Have a heart (the key move is easy, but find Mate in 14)

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

Moderators: hgm, Rebel, chrisw

Dann Corbit
Posts: 12538
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Have a heart (the key move is easy, but find Mate in 14)

Post by Dann Corbit »

[d]8/2P1P3/1PnKnP2/1ppbpp2/1BPbPB2/2NkN3/3P4/8 w - -
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
RJN
Posts: 303
Joined: Fri Jun 21, 2013 5:18 am
Location: Orion Spiral Arm

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by RJN »

Mate in 15 found so far with SF dev in less than 2 hours, will update details later.
i7-5930K @4.5GHz, H100i Hydro Cooler, 64GB DDR4 Corsair Dominator Platinum @3000MHz, ASUS X99 Deluxe mboard, 1TB EVO 850 SSD
Dann Corbit
Posts: 12538
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by Dann Corbit »

Here is my solution:
8/2P1P3/1PnKnP2/1ppbpp2/1BPbPB2/2NkN3/3P4/8 w - - acd 29; bm e8=Q; ce 32740; dm 14; pm e8=Q; pv e8=Q cxb4 Ncxd5 exf4 Qxc6 fxe3 dxe3 b3 exd4 Nxd4 Qc5 b2 Qa3+ Kc2 Qc3+ Kd1 Qxd4+ Kc1 c8=Q b1=Q Qxf5 Qd3 Qxd3 bxc4 Qe2 Kb1 Qff1#;

I know that the key move is unique, but there may be more than one pv that solves it, since I invented this one myself and I may have overlooked some possibilities. But this one is verified anyway.
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.
Dann Corbit
Posts: 12538
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by Dann Corbit »

As PGN:

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[FEN "8/2P1P3/1PnKnP2/1ppbpp2/1BPbPB2/2NkN3/3P4/8 w - - 0 1"]
[SetUp "1"]

{--------------
. . . . . . . .
. . P . P . . .
. P n K n P . .
. p p b p p . .
. B P b P B . .
. . N k N . . .
. . . P . . . .
. . . . . . . .
white to play
--------------}
1. e8=Q cxb4 2. Ncxd5 exf4 3. Qxc6 fxe3 4. dxe3 b3 5. exd4 Nxd4 6. Qc5 b2
7. Qa3+ Kc2 8. Qc3+ Kd1 9. Qxd4+ Kc1 10. c8=Q b1=Q 11. Qxf5 Qd3 12. Qxd3
bxc4 13. Qe2 Kb1 14. Qff1#
1-0
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
MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by MikeB »

[pgn]
[Result "1-0"]
[FEN "8/2P1P3/1PnKnP2/1ppbpp2/1BPbPB2/2NkN3/3P4/8 w - - 0 1"]
[SetUp "1"]


1. e8=Q cxb4 2. Ncxd5 exf4 3. Qxc6 fxe3 4. dxe3 b3 5. exd4 Nxd4 6. Qc5 b2
7. Qa3+ Kc2 8. Qc3+ Kd1 9. Qxd4+ Kc1 10. c8=Q b1=Q 11. Qxf5 Qd3 12. Qxd3
bxc4 13. Qe2 Kb1 14. Qff1#
1-0[/pgn]
User avatar
RJN
Posts: 303
Joined: Fri Jun 21, 2013 5:18 am
Location: Orion Spiral Arm

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by RJN »

+M13 :D


44/54 6:10:40 509,645,529,868 22,915,480 +M13 1.e8Q cxb4 2.cxd5 exf4 3.Qxc6 Bxc3 4.dxc3 Ng5 5.c8Q Nf7+ 6.Ke6 Ng5+ 7.Kxf5 Kxe3 8.Kxg5 b3 9.Qxb5 Kd2 10.Qxb3 Ke1 11.Qb2 Kf1 12.Qh3+ Ke1 13.Qh1+


2016-06-30 22:18:58.104<--1:info depth 44 seldepth 54 multipv 1 score mate 13 nodes 509645529868 nps 22915480 hashfull 999 tbhits 173487320 time 22240229 pv e7e8q c5b4 c4d5 e5f4 e8c6 d4c3 d2c3 e6g5 c7c8q g5f7 d6e6 f7g5 e6f5 d3e3 f5g5 b4b3 c6b5 e3d2 b5b3 d2e1 b3b2 e1f1 c8h3 f1e1 h3h1

FEN: 8/2P1P3/1PnKnP2/1ppbpp2/1BPbPB2/2NkN3/3P4/8 w - - 0 1

Stockfish-LP_Atomic_160623_BMI2:
8/10 00:00 131,858 14,650,888 +21.35 1.c8Q Nxe7 2.fxe7 Ng7 3.Nexd5 exf4 4.Nxf4+ Kxc4 5.b7
9/14 00:00 373,129 15,547,041 +21.57 1.c8Q cxb4 2.cxd5 Nxf4 3.Qxc6 bxc3 4.Qxb5+ Kxd2 5.Nf1+ Kc1 6.f7
10/14 00:00 652,236 16,305,900 +21.80 1.c8Q Nxe7 2.fxe7 Bb7 3.Qxb7 cxb4 4.e8Q exf4 5.exf5 fxe3 6.Qe4+ Kxd2 7.fxe6
11/18 00:00 1,521,168 17,896,094 +22.23 1.c8Q Nxe7 2.fxe7 Bb7 3.Qxb7 cxb4 4.e8Q exf4 5.Qxe6 fxe3 6.exf5 Kxd2 7.Nxb5
12/18 00:00 2,728,427 18,069,052 +22.65 1.c8Q Nxe7 2.fxe7 cxb4 3.cxd5 Nxf4 4.e8Q bxc3 5.Qxb5+ Kxd2 6.b7 Kxe3 7.b8Q fxe4
13/20 00:00 9,045,997 18,845,827 +23.87 1.c8Q cxb4 2.Ncxd5 Nxe7 3.fxe7 exf4 4.Nxb4+ Kxd2 5.Nf1+ Ke1 6.Qxe6 Kxf1 7.b7 Bc3 8.e8Q Bxb4+ 9.c5
14/21 00:00 14,970,389 19,022,095 +24.65 1.c8Q Nxe7 2.fxe7 Bc6 3.Qxc6 cxb4 4.e8Q Ng7 5.Qg8 exf4 6.Qgd5 Ne8+ 7.Qxe8 fxe3 8.Nxb5
15/23 00:01 28,229,960 19,388,708 +25.39 1.c8Q cxb4 2.Ncxd5 exf4 3.Qxc6 fxe3 4.dxe3 b3 5.Kxe6 b2 6.Qxb5 Bxf6 7.Nxf6 Kc2 8.Kxf5
16/28 00:02 47,224,978 19,850,768 +26.31 1.c8Q cxb4 2.Ncxd5 exf4 3.Qxc6 fxe3 4.dxe3 Bxf6 5.e8Q Ng7 6.Qec8 Ba1 7.Nxb4+ Ke2 8.exf5 Nxf5+ 9.Qxf5 bxc4
17/28+ 00:03 60,787,138 19,845,621 +26.70 1.c8Q
17/28- 00:03 63,331,554 19,859,377 +26.54 1.c8Q Nxe7
17/28+ 00:03 64,628,853 19,867,461 +26.74 1.c8Q
17/28 00:03 71,296,790 19,881,982 +26.96 1.c8Q Nxe7 2.fxe7 Bb7 3.Qxb7 cxb4 4.e8Q Nxf4 5.Nxb5 Kxd2 6.Nf1+ Kc1 7.Nxd4 exd4 8.exf5 d3 9.Qe3+ Kb1 10.Nd2+ Kc2
18/28+ 00:04 80,509,149 19,928,007 +27.03 1.c8Q
18/28+ 00:04 81,980,542 19,941,751 +27.10 1.c8Q
18/28+ 00:05 119,626,694 20,078,330 +27.82 1.c8Q
18/28- 00:06 121,928,052 20,083,685 +27.61 1.c8Q exf4
18/28+ 00:06 128,362,580 20,113,221 +27.89 1.c8Q
18/28 00:07 153,229,420 20,100,934 +28.17 1.c8Q Nxe7 2.fxe7 Bc6 3.Qxc6 cxb4 4.e8Q Nxf4 5.Ncd1 Kxd2 6.b7 Nd3 7.b8Q f4 8.Nf1+ Kxd1 9.Qh5+ Ke1 10.cxb5 Nc5 11.Qh1 b3 12.Nh2+ Ke2 13.Qf1+ Kd2
19/32+ 00:07 158,644,117 20,086,619 +28.24 1.c8Q
19/32+ 00:08 160,689,554 20,083,683 +28.31 1.c8Q
19/32+ 00:10 209,511,874 20,129,887 +28.76 1.c8Q
19/32- 00:11 228,320,375 20,130,521 +28.38 1.c8Q Nxe7
19/32+ 00:11 229,612,340 20,134,368 +28.81 1.c8Q
19/32- 00:11 231,642,740 20,134,093 +28.39 1.c8Q Nxe7
19/32+ 00:11 234,713,151 20,129,772 +28.85 1.c8Q
19/32 00:13 277,209,046 20,156,260 +29.40 1.c8Q Nxe7 2.fxe7 Bc6 3.Qxc6 cxb4 4.e8Q Nxf4 5.Ncd1 Kxd2 6.b7 Nd3 7.b8Q f4 8.Nf1+ Kxd1 9.Qh5+ Ke1 10.cxb5 f3 11.Qxf3 Nc5 12.b6 Bf2
20/32+ 00:14 298,154,088 20,183,731 +29.47 1.c8Q
20/32- 00:16 328,516,257 20,212,653 +28.38 1.c8Q Nxe7
20/32- 00:16 329,830,014 20,213,888 +29.27 1.c8Q Nxe7
20/32+ 00:16 330,753,275 20,215,957 +29.38 1.c8Q
20/32+ 00:17 348,983,622 20,219,213 +29.58 1.c8Q
20/32 00:19 387,053,031 20,252,892 +29.81 1.c8Q exf4 2.Nexd5 cxb4 3.e8Q bxc3 4.dxc3 Bxc3 5.Qexc6 Nd4 6.Nxf4+ Ke3 7.Nd5+ Kd3 8.Q6e8 Nf3 9.Nxc3 b4 10.b7 bxc3 11.b8Q Nd4 12.Qb1+ c2 13.Qf1+ Kd2 14.Qg8
21/32- 00:21 427,872,138 20,300,428 +29.27 1.c8Q Nxe7
21/32+ 00:21 432,382,232 20,308,216 +29.81 1.c8Q
21/32+ 00:21 441,191,873 20,316,442 +29.92 1.c8Q
21/33- 00:21 442,755,599 20,312,685 +29.77 1.c8Q cxb4
21/33+ 00:21 443,348,880 20,310,086 +29.92 1.c8Q
21/33+ 00:24 488,100,696 20,313,829 +30.19 1.c8Q
21/33- 00:24 501,422,010 20,313,644 +29.55 1.c8Q exf4
21/33+ 00:24 506,154,852 20,318,528 +30.25 1.c8Q
21/33 00:29 607,861,424 20,301,974 +30.50 1.c8Q Bxc4 2.Nxc4 bxc4 3.e8Q Ncd8 4.Bxc5 Bxc3 5.exf5 Nxc5 6.Qexd8 Bb4 7.Kxe5+ Kc2 8.f7 Nd3+ 9.Ke4 Kd1 10.b7 Nc5+ 11.Ke5 Nxb7 12.Qxb7 Bc5
22/33- 00:31 641,384,761 20,296,343 +30.19 1.c8Q Nxe7
22/33+ 00:31 647,436,879 20,295,190 +30.50 1.c8Q
22/34+ 00:34 698,225,688 20,303,160 +30.75 1.c8Q
22/37- 00:34 700,205,060 20,300,506 +30.56 1.c8Q cxb4
22/37+ 00:35 711,577,562 20,304,681 +30.78 1.c8Q
22/37- 00:36 748,289,471 20,302,506 +30.19 1.c8Q Nxe7
22/37+ 00:37 752,252,127 20,300,961 +30.84 1.c8Q
22/37+ 00:43 887,492,418 20,260,071 +31.44 1.c8Q
22/37 00:47 956,193,166 20,269,924 +31.44 1.c8Q exf4 2.Nexd5 Ned8 3.e8Q f3 4.Bxc5 Be5+ 5.Kd7 Bxf6 6.Nxf6 b4 7.exf5 bxc3 8.Qe3+ Kc2 9.Qxc3+ Kd1 10.Qxf3+ Kc2 11.Qc3+ Kd1 12.Qb3+ Kc1 13.Kd6 Kxd2 14.Qe3+ Kd1 15.Kd7
23/37+ 00:49 996,974,828 20,283,917 +31.51 1.c8Q
23/37- 00:50 1,034,773,592 20,296,045 +30.19 1.c8Q Nxe7
23/37+ 00:51 1,042,415,777 20,298,233 +31.51 1.c8Q
23/37+ 00:58 1,189,002,557 20,289,453 +31.86 1.c8Q
23/37- 01:03 1,280,555,381 20,274,784 +30.19 1.c8Q Nxe7
23/37+ 01:03 1,287,487,872 20,274,441 +31.85 1.c8Q
23/37- 01:03 1,290,360,609 20,273,069 +31.16 1.c8Q cxb4
23/37+ 01:03 1,290,559,629 20,272,692 +31.82 1.c8Q
23/37+ 01:12 1,471,363,894 20,226,601 +32.59 1.c8Q
23/39 01:35 1,916,177,967 20,135,957 +33.36 1.c8Q Nxe7 2.fxe7 Bc6 3.Qxc6 cxb4 4.e8Q Nxf4 5.Ncd1 Kxd2 6.b7 b3 7.b8Q Bxe3 8.Nxe3 b2 9.Qcxb5 Nd3 10.Qa5+ Kxe3 11.Qbb6+ Kxe4 12.Qd5+ Kf4 13.Qxd3 Kg4 14.Qxb2
24/39- 01:36 1,933,579,693 20,140,406 +32.89 1.c8Q exf4
24/39- 01:36 1,944,516,206 20,140,200 +32.79 1.c8Q exf4
24/39- 01:38 1,984,915,309 20,134,049 +32.13 1.c8Q Nxe7
24/39+ 01:39 1,995,211,518 20,134,127 +32.89 1.c8Q
24/39+ 01:42 2,071,730,369 20,134,021 +33.36 1.c8Q
24/39- 01:46 2,148,184,702 20,122,944 +32.89 1.c8Q exf4
24/39+ 01:48 2,191,330,447 20,123,333 +33.39 1.c8Q
24/39- 01:50 2,230,258,900 20,117,977 +32.91 1.c8Q exf4
24/39+ 01:52 2,261,857,341 20,110,940 +33.44 1.c8Q
24/41+ 02:23 2,862,380,725 20,010,911 +34.42 1.c8Q
24/44- 02:28 2,975,726,055 20,017,934 +33.57 1.c8Q exf4
24/44+ 02:35 3,116,958,762 20,008,336 +34.63 1.c8Q
24/44 03:49 4,559,353,887 19,841,307 +36.02 1.c8Q exf4 2.Nexd5 cxb4 3.e8Q bxc3 4.dxc3 Bxc3 5.Qexe6 Nd4 6.Nxf4+ Ke3 7.Nd5+ Kd2 8.Qee8 Bb2 9.b7 Nc2 10.b8Q Bxf6 11.Nxf6 f4 12.cxb5 Nd4 13.Nd5 Ne2 14.Qa7 f3 15.Qf2
25/44- 03:51 4,596,321,966 19,844,150 +35.42 1.c8Q exf4
25/44- 03:51 4,599,482,434 19,844,429 +35.32 1.c8Q exf4
25/44- 03:51 4,599,546,502 19,844,363 +35.17 1.c8Q exf4
25/44- 03:52 4,606,373,963 19,844,453 +34.52 1.c8Q Nxf4
25/44+ 03:52 4,606,394,007 19,844,454 +35.35 1.c8Q
25/44- 03:52 4,623,043,145 19,842,493 +34.53 1.c8Q Nxf4
25/44+ 03:52 4,623,065,775 19,842,505 +35.20 1.c8Q
25/44- 03:54 4,654,150,194 19,834,266 +34.56 1.c8Q Bxc4
25/44+ 03:54 4,654,318,318 19,834,221 +35.17 1.c8Q
25/44- 03:58 4,739,555,033 19,833,263 +34.30 1.c8Q Nxb4
25/44+ 03:59 4,741,390,682 19,833,475 +35.25 1.c8Q
25/44 04:35 5,452,806,552 19,785,363 +36.25 1.c8Q exf4 2.Nexd5 Ned8 3.e8Q f3 4.Bxc5 Kxd2 5.Bxd4 Nxd4 6.Qexd8 f2 7.f7 f1Q 8.f8Q Qa1 9.Qg5+ Kc2 10.Qe3 Qa3+ 11.c5 b4 12.b7 Qa6+ 13.Ke5 Nc6+ 14.Qxc6 Qxc6 15.Nxb4+ Kb3 16.Nxc6
26/44- 04:35 5,455,026,022 19,785,160 +36.14 1.c8Q exf4
26/44- 04:35 5,455,830,577 19,785,136 +36.01 1.c8Q exf4
26/44- 04:36 5,461,173,932 19,785,069 +35.69 1.c8Q exf4
26/44- 04:37 5,482,322,883 19,784,993 +35.22 1.c8Q Nxb4
26/44- 04:37 5,482,338,394 19,784,978 +34.74 1.c8Q Bxc4
26/44+ 04:37 5,482,371,159 19,784,953 +35.41 1.c8Q
26/44- 04:37 5,499,523,745 19,784,594 +34.18 1.c8Q Nxe7
26/44+ 04:38 5,505,345,779 19,784,400 +35.35 1.c8Q
26/44- 04:40 5,545,306,672 19,784,670 +34.74 1.c8Q Bxc4
26/44+ 04:40 5,545,411,914 19,784,621 +35.38 1.c8Q
26/44+ 04:51 5,773,493,559 19,786,129 +36.36 1.c8Q
26/44- 05:35 6,626,113,318 19,747,316 +35.22 1.c8Q Nxb4
26/44+ 05:44 6,788,242,461 19,728,961 +36.55 1.c8Q
26/44 07:28 8,817,789,588 19,663,999 +38.38 1.c8Q Nxf4 2.Ncxd5 Nxb4 3.e8Q Kxd2 4.b7 Bxe3 5.b8Q Ne2 6.Nxe3 Ng3 7.f7 Nd3 8.f8Q Kxe3 9.exf5 Ne4+ 10.Kd5 Nc3+ 11.Ke6 Kd2 12.Qh6+ Kc2 13.cxb5 Kb3 14.b6 Nf4+ 15.Kd6 Nd3 16.f6 Ne4+ 17.Ke6
27/44- 07:32 8,897,402,906 19,661,378 +38.31 1.c8Q Nxf4
27/44- 07:32 8,899,286,308 19,661,325 +37.45 1.c8Q Nxf4
27/44- 07:34 8,930,323,601 19,660,789 +36.92 1.c8Q Nxf4
27/44- 07:34 8,930,713,934 19,660,782 +36.66 1.c8Q Nxb4
27/44+ 07:34 8,930,718,066 19,660,791 +37.44 1.c8Q
27/44- 07:36 8,971,704,039 19,661,724 +36.81 1.c8Q Nxe7
27/44+ 07:36 8,971,773,600 19,661,748 +37.34 1.c8Q
27/44+ 07:40 9,047,973,451 19,659,335 +37.80 1.c8Q
27/44- 07:40 9,059,735,874 19,658,837 +37.13 1.c8Q Nxe7
27/44+ 07:41 9,075,729,310 19,658,307 +37.87 1.c8Q
27/44- 07:45 9,153,943,002 19,658,250 +37.09 1.c8Q exf4
27/44+ 07:46 9,174,901,389 19,657,624 +37.98 1.c8Q
27/44- 08:02 9,495,571,222 19,662,010 +36.81 1.c8Q exf4
27/44+ 08:06 9,568,326,706 19,661,659 +38.23 1.c8Q
27/44 09:15 10,913,914,450 19,637,960 +38.82 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Bxe3 5.b8Q Bd4 6.Nxb5 Nfd3 7.f7 Be3 8.Qh8 Nc2 9.f8Q f4 10.Qh5 Nf2 11.Qxe5 Nd1 12.Qg4 Nd4 13.Nxd4 cxd4 14.Qb4+ Nc3 15.Qg2+ Ke1 16.Qh1+ Kf2 17.Qc4
28/44- 09:15 10,916,307,010 19,637,495 +38.67 1.c8Q Nxb4
28/44- 09:15 10,917,783,565 19,637,466 +38.53 1.c8Q Nxb4
28/44- 09:16 10,919,299,477 19,637,332 +37.39 1.c8Q Bxc4
28/44+ 09:16 10,930,148,731 19,635,903 +38.57 1.c8Q
28/44+ 09:24 11,078,192,485 19,638,320 +38.77 1.c8Q
28/44- 09:25 11,103,506,025 19,639,014 +38.49 1.c8Q cxb4
28/44+ 09:30 11,197,510,000 19,640,619 +38.81 1.c8Q
28/44- 09:30 11,197,528,028 19,640,616 +38.43 1.c8Q Nxb4
28/44- 09:31 11,227,215,197 19,642,180 +37.82 1.c8Q Kxd2
28/44+ 09:32 11,240,715,889 19,642,947 +38.35 1.c8Q
28/44- 09:43 11,473,841,782 19,649,176 +37.47 1.c8Q Nxb4
28/44+ 09:43 11,473,868,772 19,649,155 +38.51 1.c8Q
28/44 10:12 12,030,909,836 19,650,290 +39.30 1.c8Q cxb4 2.Ncxd5 Nc5 3.Kxc6 exf4 4.Nxf5 Bf2 5.e8Q b3 6.f7 b2 7.f8Q b1Q 8.b7 Kc2 9.b8Q Nb3 10.Qxb5 Be1 11.Qf6 Bxd2 12.Nd4+ Nxd4+ 13.Qxd4 Qxb5+ 14.cxb5 f3 15.Kd6+ Kd1 16.b6 Ke2
29/44- 10:12 12,038,716,972 19,650,684 +39.22 1.c8Q cxb4
29/44- 10:13 12,048,139,383 19,651,309 +38.86 1.c8Q exf4
29/44- 10:13 12,048,651,622 19,651,343 +38.75 1.c8Q exf4
29/44+ 10:14 12,070,915,034 19,652,685 +38.99 1.c8Q
29/44- 10:15 12,090,070,720 19,653,921 +38.53 1.c8Q Nxb4
29/44+ 10:15 12,099,064,263 19,654,323 +39.00 1.c8Q
29/44- 10:24 12,271,422,176 19,658,904 +38.33 1.c8Q Nxf4
29/44+ 10:24 12,278,923,424 19,659,457 +38.99 1.c8Q
29/44- 10:26 12,320,357,735 19,661,860 +38.30 1.c8Q exf4
29/44+ 10:28 12,355,607,710 19,663,450 +39.01 1.c8Q
29/44- 10:28 12,360,005,587 19,663,689 +38.27 1.c8Q Nxf4
29/44+ 10:31 12,414,883,361 19,665,708 +39.13 1.c8Q
29/44 11:11 13,216,308,235 19,679,542 +39.69 1.c8Q Nxf4 2.Ncxd5 Nxb4 3.e8Q Kxd2 4.b7 Bxe3 5.Nxe3 Nbd3 6.b8Q Kxe3 7.f7 Nh5 8.f8Q Ng3 9.exf5 Ne4+ 10.Ke6 Ke2 11.cxb5 Nef2 12.Kd6 Ne4+ 13.Kd5 Nef2 14.f6 Nb4+ 15.Kxe5 Nfd3+ 16.Kf5+ Kd2 17.Qa8 Kc3 18.Qa3+ Kc2
30/44- 11:11 13,216,428,961 19,679,546 +39.61 1.c8Q Nxf4
30/44- 11:11 13,216,590,269 19,679,551 +39.23 1.c8Q Nxf4
30/44- 11:12 13,236,456,602 19,680,180 +39.09 1.c8Q exf4
30/44- 11:13 13,255,431,788 19,680,741 +38.81 1.c8Q Bxc3
30/44+ 11:14 13,268,404,883 19,681,359 +39.15 1.c8Q
30/44- 11:14 13,277,952,239 19,681,595 +38.33 1.c8Q Nxb4
30/44+ 11:14 13,282,021,472 19,681,734 +39.15 1.c8Q
30/44- 11:18 13,349,104,700 19,685,170 +38.46 1.c8Q Bxc4
30/44+ 11:19 13,376,614,182 19,686,429 +39.09 1.c8Q
30/44- 11:23 13,461,194,590 19,690,299 +38.46 1.c8Q exf4
30/44+ 11:25 13,492,676,938 19,692,077 +39.17 1.c8Q
30/44- 11:25 13,495,268,996 19,692,182 +38.31 1.c8Q exf4
30/44+ 11:26 13,510,602,788 19,693,148 +39.36 1.c8Q
30/44- 11:27 13,533,942,721 19,694,672 +38.05 1.c8Q exf4
30/44 11:38 13,767,044,132 19,702,614 +39.60 1.c8Q Nxf4 2.Ncxd5 Nxb4 3.e8Q Kxd2 4.b7 Bxe3 5.Nxe3 Nbd3 6.b8Q Kxe3 7.f7 Nh5 8.f8Q Ng3 9.exf5 Ne4+ 10.Ke6 Ke2 11.cxb5 Nef2 12.Kd6 Ne4+ 13.Kd5 Nef2 14.f6 Nb4+ 15.Kxe5 Nfd3+ 16.Kf5+ Kd2 17.Qa8 Nc2 18.Qh6+ Kc3
31/44- 11:39 13,772,609,855 19,702,797 +39.53 1.c8Q exf4
31/44- 11:41 13,813,881,188 19,703,378 +39.28 1.c8Q Kxd2
31/44- 11:47 13,943,379,273 19,708,903 +38.77 1.c8Q Nxe7
31/44+ 11:49 13,986,843,450 19,709,356 +39.35 1.c8Q
31/44- 11:56 14,117,976,101 19,711,456 +39.13 1.c8Q Bxc3
31/44- 11:57 14,138,169,686 19,712,074 +38.77 1.c8Q Nxe7
31/44+ 11:57 14,138,196,563 19,712,056 +39.10 1.c8Q
31/44+ 12:00 14,201,798,285 19,713,795 +39.56 1.c8Q
31/44 12:21 14,624,735,762 19,723,948 +39.22 1.c8Q exf4 2.Nexd5 cxb4 3.e8Q Ned8 4.Nxb4+ Nxb4 5.Qcxd8 Nc2 6.f7 b4 7.b7 Kxd2 8.f8Q f3 9.exf5 Kxc3 10.b8Q Kb2 11.Qe4 Bc3 12.Qxf3 b3 13.Qg5 Bb4+ 14.c5 Bc3 15.f6 Nd4 16.Qf1 Nc2
32/44+ 12:22 14,637,548,915 19,724,283 +39.29 1.c8Q
32/44+ 12:22 14,645,335,362 19,724,543 +39.36 1.c8Q
32/44+ 12:22 14,655,041,352 19,724,996 +39.46 1.c8Q
32/44- 12:24 14,678,884,386 19,726,130 +39.13 1.c8Q Nxb4
32/44+ 12:24 14,682,141,348 19,726,345 +39.49 1.c8Q
32/44- 12:56 15,316,090,009 19,730,999 +39.13 1.c8Q Bxc3
32/44+ 12:56 15,328,853,044 19,730,894 +39.49 1.c8Q
32/44- 13:17 15,740,024,001 19,730,348 +39.13 1.c8Q Bxc3
32/44+ 13:19 15,767,773,586 19,729,397 +39.54 1.c8Q
32/44- 13:23 15,851,209,923 19,728,219 +38.85 1.c8Q Nxb4
32/44 13:24 15,866,537,087 19,727,628 +39.54 1.c8Q Nxf4 2.Ncxd5 Nxb4 3.e8Q Kxd2 4.b7 Bxe3 5.Nxe3 Nfd3 6.b8Q f4 7.Nf1+ Ke1 8.cxb5 Kxf1 9.f7 Nf2 10.Qxe5 Nbd3 11.Qa1+ Ke2 12.f8Q Kd2 13.b6 Ke3 14.e5 Ne4+ 15.Kd5 Nb4+ 16.Kc4 Nd2+ 17.Kb5 Nd3 18.Qg1+ Ke2 19.Qcg4+ f3 20.e6
33/44+ 13:44 16,276,822,747 19,731,467 +39.61 1.c8Q
33/44- 13:46 16,299,605,863 19,731,697 +39.32 1.c8Q exf4
33/44+ 13:46 16,313,711,042 19,731,861 +39.61 1.c8Q
33/44- 13:47 16,327,301,289 19,731,998 +39.13 1.c8Q Nxb4
33/44+ 13:48 16,346,501,963 19,732,095 +39.58 1.c8Q
33/44+ 14:02 16,631,241,574 19,733,038 +39.86 1.c8Q
33/44- 14:07 16,722,763,554 19,732,037 +39.32 1.c8Q exf4
33/44+ 14:17 16,925,129,019 19,734,813 +39.91 1.c8Q
33/44- 14:31 17,211,266,283 19,738,098 +39.32 1.c8Q exf4
33/44+ 14:40 17,386,902,806 19,740,705 +39.94 1.c8Q
33/44- 14:52 17,626,389,213 19,740,652 +39.13 1.c8Q Nxb4
33/44+ 14:59 17,767,433,528 19,742,470 +40.08 1.c8Q
33/44- 15:40 18,562,879,934 19,746,295 +38.87 1.c8Q Nxe7
33/44+ 15:41 18,596,304,357 19,747,064 +40.32 1.c8Q
33/48 20:00 23,715,486,408 19,759,085 +42.31 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Ke1 5.b8Q Nbd3 6.f7 b4 7.f8Q Bxe3 8.Nb1 Nb2 9.Qh6 Nc4+ 10.Kc6 Bg1 11.Qh1 Ne2 12.exf5 Kd1 13.Qe4 Na5+ 14.Kc7 Nb3 15.Qa4 c4 16.Qxc4 Nec1 17.f6 Ke1 18.Qe4+ Kf2 19.Qcf5+ Kg3 20.Qexe5+ Kg2 21.Qaxb4
34/48- 20:00 23,720,484,548 19,758,985 +42.22 1.c8Q Nxb4
34/48- 20:02 23,755,496,579 19,759,149 +42.10 1.c8Q Nxf4
34/48- 20:02 23,757,783,036 19,759,144 +41.92 1.c8Q Nxf4
34/48+ 20:10 23,919,273,504 19,763,111 +42.11 1.c8Q
34/48- 20:10 23,920,943,111 19,763,118 +41.94 1.c8Q Nxb4
34/48+ 20:19 24,099,934,449 19,764,801 +42.12 1.c8Q
34/48- 20:21 24,142,524,996 19,764,605 +41.67 1.c8Q Nxb4
34/48+ 20:33 24,375,567,610 19,764,491 +42.18 1.c8Q
34/48- 20:37 24,455,420,044 19,764,638 +40.84 1.c8Q Nxb4
34/48+ 20:41 24,544,476,475 19,763,538 +42.24 1.c8Q
34/48- 20:50 24,702,475,174 19,757,491 +41.08 1.c8Q Nxb4
34/48+ 20:50 24,706,389,648 19,757,303 +42.18 1.c8Q
34/48- 21:10 25,093,450,943 19,751,437 +40.84 1.c8Q Nxb4
34/48+ 21:56 26,007,523,343 19,759,898 +42.38 1.c8Q
34/48 22:20 26,492,277,208 19,762,893 +43.60 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Nfd3 5.f7 Bxe3 6.b8Q Bh6 7.Qh8 Be3 8.Nxb5 Nc2 9.f8Q Bf4 10.Qfxf5 Ne3 11.Qfh5 Nc4+ 12.Ke6 Be3 13.Qh1 Nf2 14.Qf1 Nd3 15.Qh2+ Bf2 16.Qb1 Nf4+ 17.Kf7 Nd3 18.Qxc5 Nd6+ 19.Qbxd6
35/48- 22:22 26,534,806,024 19,762,716 +43.34 1.c8Q Nxb4
35/48- 22:28 26,652,537,559 19,763,452 +42.80 1.c8Q Nxf4
35/48- 22:30 26,687,660,642 19,763,777 +39.94 1.c8Q Nxb4
35/48+ 22:34 26,771,459,027 19,763,295 +43.06 1.c8Q
35/48- 22:46 27,010,130,199 19,763,273 +41.85 1.c8Q Nxe7
35/48+ 22:46 27,013,027,781 19,763,311 +42.63 1.c8Q
35/48+ 22:47 27,017,067,203 19,763,360 +42.98 1.c8Q
35/48- 22:48 27,048,087,350 19,763,729 +42.31 1.c8Q Nxf4
35/48+ 22:48 27,050,829,276 19,763,754 +43.00 1.c8Q
35/48- 22:50 27,086,217,343 19,764,080 +42.31 1.c8Q Nxf4
35/48+ 22:50 27,094,662,581 19,763,998 +43.06 1.c8Q
35/48- 22:57 27,220,232,695 19,762,742 +42.16 1.c8Q Nxf4
35/48+ 23:00 27,276,501,819 19,762,530 +43.24 1.c8Q
35/48- 24:22 28,905,136,922 19,766,101 +41.86 1.c8Q Nxf4
35/48+ 24:22 28,906,079,625 19,766,097 +43.57 1.c8Q
35/48+ 28:16 33,610,581,088 19,812,209 +46.70 1.c8Q
35/48- 28:22 33,724,935,270 19,813,628 +44.06 1.c8Q Nxf4
35/48 28:45 34,191,537,564 19,816,677 +45.10 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Nbd3 5.b8Q b4 6.f7 Nf2 7.Nxf5 Bxc3 8.f8Q Ke1 9.Kxc5 N2d3+ 10.Kb5 Ne2 11.Qh6 Nf2 12.Kc4 Kf1 13.Qh2 Ke1 14.Qa7 Nd1 15.Qh1+ Kd2 16.Qa2+ Nb2+ 17.Kb5 Bd4 18.Qh6+ Ke1 19.Qa1+ Nd1 20.Qh1+ Bg1 21.Qc2 Nec3+ 22.Qcxc3+ Ke2 23.Qxb4
36/48+ 28:46 34,215,790,876 19,816,791 +45.17 1.c8Q
36/48- 28:46 34,222,404,325 19,816,776 +45.08 1.c8Q Nxb4
36/48+ 28:47 34,226,348,360 19,816,777 +45.17 1.c8Q
36/48- 28:47 34,237,652,385 19,816,816 +43.86 1.c8Q exf4
36/48+ 28:48 34,252,897,351 19,816,934 +45.19 1.c8Q
36/48+ 28:48 34,262,517,275 19,816,916 +45.46 1.c8Q
36/48- 28:49 34,267,068,715 19,816,993 +44.78 1.c8Q Nxb4
36/48+ 28:49 34,268,175,185 19,816,991 +45.38 1.c8Q
36/48+ 28:54 34,383,404,244 19,818,083 +45.98 1.c8Q
36/48- 28:55 34,391,926,981 19,818,004 +45.30 1.c8Q Nxb4
36/48+ 29:03 34,561,383,114 19,820,591 +46.08 1.c8Q
36/48- 29:12 34,734,244,699 19,821,397 +45.18 1.c8Q Nxb4
36/48- 29:13 34,758,866,764 19,822,044 +43.58 1.c8Q Nxf4
36/48+ 29:13 34,764,678,053 19,822,193 +44.93 1.c8Q
36/48- 30:33 36,368,210,469 19,839,514 +41.85 1.c8Q Nxe7
36/48+ 30:34 36,394,883,322 19,839,821 +45.34 1.c8Q
36/48+ 32:09 38,326,329,934 19,866,920 +49.28 1.c8Q
36/48- 32:16 38,483,935,833 19,869,855 +45.48 1.c8Q Nxb4
36/48+ 32:25 38,653,913,186 19,872,721 +50.10 1.c8Q
36/48- 32:27 38,700,148,058 19,873,512 +44.63 1.c8Q Nxb4
36/48+ 32:58 39,349,353,760 19,887,020 +51.27 1.c8Q
36/54+ 38:10 46,020,295,157 20,090,224 +63.43 1.c8Q
36/54- 42:22 51,631,832,251 20,310,093 +46.87 1.c8Q Nxb4
36/54+ 44:00 53,777,403,458 20,368,392 +65.95 1.c8Q
36/54+ 49:53 61,656,816,828 20,595,921 +89.76 1.c8Q
36/54- 49:54 61,672,284,854 20,596,080 +66.54 1.c8Q Nxb4
36/54+ 50:58 63,088,271,339 20,630,471 +94.00 1.c8Q
36/54- 51:35 63,955,918,891 20,661,901 +53.75 1.c8Q Nxb4
36/54+ 51:36 63,974,162,319 20,662,414 +92.84 1.c8Q
36/54 1:15:26 96,665,311,039 21,353,637 +M18 1.c8Q cxb4 2.Ncxd5 Nc5 3.Kxc6 exf4 4.Nxf5 Nb3 5.Nxd4 Nxd4+ 6.Kc5 Nb3+ 7.Kxb4 Nc1 8.Qh3+ Kc2 9.Qc3+ Kd1 10.e8Q Na2+ 11.Kxb5 Nxc3+ 12.dxc3 Ke2 13.Qh5+ Kd2 14.f7 Kc1 15.f8Q Kb2 16.Qh2+ Kb1 17.Qfxf4 Ka1 18.Qc1+
37/54 1:15:56 97,404,601,246 21,375,086 +M16 1.c8Q cxb4 2.Ncxd5 exf4 3.Qxc6 fxe3 4.Nxb4+ Kxd2 5.cxb5 Nc5 6.exf5 Kc3 7.Qxc5+ Bxc5+ 8.Kxc5 e2 9.e8Q Kd2 10.Nc2 Kd1 11.b7 Kd2 12.Qe3+ Kd1 13.b8Q Kxc2 14.Qxe2+ Kb1 15.Qg3 Kc1 16.Qge1+
38/54 1:21:22 105,008,442,503 21,508,581 +M16 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Nc6 5.dxc6 b4 6.b8Q Bxc3 7.f7 Kxe3 8.Qxf5 Kd2 9.f8Q Kc2 10.Qeh5 Nd3 11.Qf1 Nb2 12.Q8f2+ Bd2 13.Qxd2+ Kxd2 14.Qfe2+ Kc3 15.Qh3+ Kd4 16.Qhe3+
39/54 1:26:58 112,714,917,908 21,598,779 +M16 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Nc6 5.dxc6 b4 6.b8Q Bxc3 7.f7 Kxe3 8.Qxf5 Kd2 9.f8Q Kc2 10.Qeh5 Nd3 11.Qf1 Nb2 12.Q8f2+ Bd2 13.Qxd2+ Kxd2 14.Qfe2+ Kc3 15.Qh3+ Kd4 16.Qhe3+
40/54 1:30:00 116,869,777,748 21,642,214 +M16 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Nc6 5.dxc6 b4 6.b8Q Bxc3 7.f7 Kxe3 8.Qxf5 Kd2 9.f8Q Kc2 10.Qeh5 Nd3 11.Qf1 Nb2 12.Q8f2+ Bd2 13.Qxd2+ Kxd2 14.Qfe2+ Kc3 15.Qh3+ Kd4 16.Qhe3+
41/54 1:44:22 136,762,393,689 21,839,596 +M15 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Kxe3 5.Qxb5 Nbd3 6.b8Q Bxc3 7.Qcxc5+ Bd4 8.Qc2 fxe4 9.Qg8 Kf3 10.Qd1+ Ne2 11.Qg5 Kf2 12.Qh5 Bc5+ 13.Qxc5+ Nxc5 14.Qdxe2+ Kg1 15.Qhh2+
42/54 1:49:17 143,560,529,769 21,892,443 +M15 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Kxe3 5.Qxb5 Nbd3 6.b8Q Bxc3 7.Qcxc5+ Bd4 8.Qc2 fxe4 9.Qg8 Kf3 10.Qd1+ Ne2 11.Qg5 Kf2 12.Qh5 Bc5+ 13.Qxc5+ Nxc5 14.Qdxe2+ Kg1 15.Qhh2+
43/54 2:04:34 164,741,448,784 22,039,511 +M15 1.c8Q Nxb4 2.cxd5 Nxf4 3.e8Q Kxd2 4.b7 Kxe3 5.Qxb5 Nbd3 6.b8Q Bxc3 7.Qcxc5+ Bd4 8.Qc2 fxe4 9.Qg8 Kf3 10.Qd1+ Ne2 11.Qg5 Kf2 12.Qh5 Bc5+ 13.Qxc5+ Nxc5 14.Qdxe2+ Kg1 15.Qhh2+
44/54 6:10:40 509,645,529,868 22,915,480 +M13 1.e8Q cxb4 2.cxd5 exf4 3.Qxc6 Bxc3 4.dxc3 Ng5 5.c8Q Nf7+ 6.Ke6 Ng5+ 7.Kxf5 Kxe3 8.Kxg5 b3 9.Qxb5 Kd2 10.Qxb3 Ke1 11.Qb2 Kf1 12.Qh3+ Ke1 13.Qh1+
i7-5930K @4.5GHz, H100i Hydro Cooler, 64GB DDR4 Corsair Dominator Platinum @3000MHz, ASUS X99 Deluxe mboard, 1TB EVO 850 SSD
Dann Corbit
Posts: 12538
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by Dann Corbit »

Wow, thanks.
That makes you co-author on this problem, as far as I am concerned.
It's a big surprise.
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
RJN
Posts: 303
Joined: Fri Jun 21, 2013 5:18 am
Location: Orion Spiral Arm

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by RJN »

Thanks Dann, very interesting position.

Another +M13 variation was found an hour later. I will let the analysis churn overnight, and see if any other surprises pop up.

(if 2...Nxf4)

47/54 7:58:02 658,670,113,829 22,964,126 +M13 1.e8Q cxb4 2.cxd5 Nxf4 3.Qxc6 bxc3 4.Qxb5+ Kxd2 5.Nf1+ Kd1 6.c8Q Ke1 7.Qb1+ Kf2 8.Qxf5 Bc5+ 9.Kxc5 c2 10.Qxc2+ Kxf1 11.Qg4 Ne6+ 12.dxe6 Ke1 13.Qge2+
i7-5930K @4.5GHz, H100i Hydro Cooler, 64GB DDR4 Corsair Dominator Platinum @3000MHz, ASUS X99 Deluxe mboard, 1TB EVO 850 SSD
User avatar
Nordlandia
Posts: 2821
Joined: Fri Sep 25, 2015 9:38 pm
Location: Sortland, Norway

Re: Have a heart (the key move is easy, but find Mate in 14)

Post by Nordlandia »

What does matefinder say?