jdart wrote: ↑Sat Aug 08, 2020 3:11 am
Houdini 6.03 finds this quite rapidly.
--Jon
As does Crystal 080420
Code: Select all
FEN: r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - 0 1
Crystal 080420:
8 00:00 42,260 7,043,333 -3.15 1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 Bxg5+ 5.hxg5
9 00:00 136,406 8,525,375 -4.32 1.a3 Nd5 2.Nxd5 exd5 3.e6 b4 4.Rxd5 Be7 5.Nf7+ Kg8 6.Qe3 bxa3
10 00:00 477,685 8,380,438 -3.67 1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.Kb1 b4 5.axb4 Bb7 6.Ra5 Bxg2 7.Rd1
11 00:00 632,317 8,211,909 -3.69 1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.Kb1 h6 5.Nf3 b4 6.axb4 Be6 7.Rd4 c5 8.bxc5
12 00:00 897,849 7,740,077 -4.41 1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.Kb1 h6 5.Nh3 Bb7 6.Nf4 Bxd5 7.Nxd5 Rd8 8.Nxe7 Qxe7
13 00:00 2,528,977 7,309,182 -4.40 1.a3 Nd5 2.Qf3 c6 3.h5 Nxf4 4.Qxf4 h6 5.Nh3 Kg8 6.Qd2 b4 7.axb4 Be7 8.Qc3 Rb8 9.Nf4
14 00:00 3,228,840 7,207,232 -4.59 1.a3 Nd5 2.Qf3 c6 3.h5 Nxf4 4.Qxf4 h6 5.Nh3 Kg8 6.g4 b4 7.axb4 Be7 8.Qg3 Bxb4 9.Kb1 Qe7
15 00:01 7,414,102 7,198,157 -4.94 1.Qf3 c6 2.a3 Nd5 3.h5 Nxf4 4.Qxf4 h6 5.Nh3 Kg8 6.g4 fxg4 7.Qxg4 Qf7 8.Rhg1 Ra7 9.Rd3 Qf5 10.Qxf5 Rxf5 11.Rd8+ Rf8 12.Rxf8+ Kxf8 13.Rg4
16 00:01 7,844,968 7,177,463 -4.68 1.Qf3 c6 2.a3 Nd5 3.h5 h6 4.Ngh3 b4 5.axb4 Bxb4 6.Ng6+ Kg8 7.c3 Be7 8.Kc2 Rb8 9.Nhf4 a3 10.b3 Bg5 11.g3 Bxf4
17 00:01 13,073,715 7,144,106 -4.98 1.Qf3 c6 2.a3 Nd5 3.h5 h6 4.Ngh3 b4 5.axb4 Nxb4 6.c3 Nd5 7.Ng6+ Kg8 8.Nxf8 Bxf8 9.Nf4 a3 10.b3 Bb7 11.Kb1 Nxf4 12.Qxf4 c5
18 00:02 19,623,358 7,135,766 -5.07 1.c3 Nd5 2.Nxd5 exd5 3.f4 a3 4.b4 Bb6 5.Rd3 h6 6.Nf3 Be6 7.Qc2 Qe7 8.Nd4 Bxd4 9.Rxd4 Kh7 10.g3 c5 11.bxc5
19- 00:03 27,020,504 7,106,918 -5.16 1.c3 Nd5
19- 00:04 29,738,286 7,088,983 -5.26 1.c3 Nd5
19+ 00:04 33,687,030 7,075,620 -5.16 1.Rd8
19+ 00:05 37,757,908 7,124,133 -0.16 1.Rd8
19 00:05 38,537,564 7,132,623 +0.44 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Rf7 6.Nf6+ Kf8 7.Rh8+ Ke7 8.Rxd8 Kxd8 9.Qxf7 gxf6 10.exf6 Bd7 11.g6 Be8 12.Qxe6 Bxg6 13.f7 Bxf7 14.Qxf7 Ra6 15.a3 Nc6 16.Qxf5
20+ 00:05 39,384,770 7,146,574 +0.53 1.Rd8
20+ 00:05 39,423,857 7,145,886 +0.64 1.Rd8
20+ 00:08 62,776,457 7,604,658 +9.48 1.Rd8
20 00:09 70,163,890 7,734,967 +9.95 1.Rd8 Qxd8 2.Qh5 Qxg5 3.hxg5 Kg8 4.Qxh7+ Kf7 5.Qg6+ Ke7 6.Qxg7+ Rf7 7.Qg8 Bd4 8.Rd1 c5 9.c3 a3 10.cxd4 axb2+ 11.Kb1 Nd5 12.Ng6+ Kd7 13.Qxf7+ Kc6 14.Qe8+ Kb6 15.dxc5+ Kxc5 16.Kxb2 Kb6
21+ 00:09 76,721,161 7,807,974 +10.05 1.Rd8
21+ 00:10 78,347,191 7,831,586 +10.15 1.Rd8
21+ 00:10 86,620,378 7,919,939 +10.49 1.Rd8
21 00:11 87,785,967 7,934,378 +10.21 1.Rd8 Qxd8 2.Qh5 Qxg5 3.hxg5 Kg8 4.Qxh7+ Kf7 5.Qg6+ Ke7 6.Qxg7+ Ke8 7.Qg6+ Kd7 8.Qxe6+ Kd8 9.Rd1+ Bd6 10.Qh6 Bd7 11.exd6 Re8 12.dxc7+ Kc8 13.Qd6 Bc6 14.Qxb4 Kxc7 15.Qc5 Rac8 16.Qxf5 Kb7 17.a3
22+ 00:11 94,872,282 7,989,244 +10.30 1.Rd8
22+ 00:12 97,886,696 8,009,057 +10.40 1.Rd8
22+ 00:13 113,126,285 8,130,977 +10.75 1.Rd8
22 00:15 128,941,333 8,225,922 +10.93 1.Rd8 Qxd8 2.Qh5 Qxg5 3.hxg5 Kg8 4.Qxh7+ Kf7 5.Qg6+ Ke7 6.Qxg7+ Rf7 7.Qg8 Bd4 8.Rd1 c5 9.c3 Nd5 10.Ng6+ Kd7 11.Qxf7+ Kc6 12.cxd4 cxd4 13.Rxd4 Kc5 14.Rd1 b4 15.Ne7 Nf4 16.g3 Nh3 17.Nxc8 Rxc8 18.Qxe6
23- 00:16 134,631,311 8,248,962 +10.84 1.Rd8 Qxd8
23- 00:16 135,683,953 8,255,290 +10.74 1.Rd8 Qxd8
23+ 00:17 144,085,966 8,290,331 +10.84 1.Rd8
23+ 00:23 198,621,320 8,466,021 +11.67 1.Rd8
As does SF Exp 230430
Code: Select all
FEN: r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - 0 1
Stockfish Exp 230420:
8 00:00 21,172 5,293,000 +50.17 1.Ngxe6 Bxe6 2.a3 Na2+ 3.Kb1
9 00:00 25,943 6,485,750 +14.16 1.Ngxe6 Bxe6 2.a3 Na2+ 3.Kb1 Nc3+ 4.Ka1 b4 5.f3 Rd8 6.Rxd8 Nxe2
10 00:00 49,248 7,035,428 +30.84 1.Ngxe6 Nxa2+ 2.Kb1 Rb8
11 00:00 77,745 7,067,727 +19.55 1.Ngxe6 Bxe6 2.a3 Na2+ 3.Kb1 Bc4 4.Nd3 Bxd3 5.Rxd3
12 00:00 183,094 7,323,760 +10.26 1.Kb1 Nc6 2.Qh5 h6 3.c4 Nxe5 4.Rdg1 bxc4 5.Ngxe6 Bxe6 6.Qxe8 Raxe8 7.Rc1 Ba7 8.Nxe6 Rxe6
13 00:00 286,717 7,167,925 0.00 1.Kb1 Nc6 2.Nd3 Bb6 3.Nf7+ Kg8 4.Nh6+ Kh8
14 00:00 345,485 7,050,714 +10.49 1.Kb1 Nc6 2.c3 Rb8 3.f3 Ba7 4.Nd3 Rb6 5.Nxe6 Qxe6
15 00:00 1,132,395 7,305,774 +8.10 1.a3 Nc6 2.Ngxe6 Rb8 3.Rd5 Bd4 4.Nxc7 Qxe5 5.c3 Qxf4+ 6.Qd2 Bb6 7.Rf1 Qxd2+ 8.Kb1 Bxc7 9.g3 Qxd5
16 00:00 2,500,575 7,554,607 +5.41 1.a3 Nc6 2.Rd2 Bb6 3.Rhd1 b4 4.c4 Ra5 5.Ngxe6 Qxe6 6.axb4 Qg8 7.b5 Nd4 8.Kb1 Nxe2
17 00:00 2,961,245 7,534,974 +13.13 1.Rd8 Nd3+ 2.cxd3 Be7 3.Ngxe6 Qc6+ 4.Kb1
18 00:01 10,977,794 7,830,095 +8.87 1.Rd8 Nd5 2.Nd3 h6 3.Rxe8 Bd7 4.Rxa8 a3 5.Nxc5 axb2+ 6.Kxb2 Rxa8 7.Ngxe6 Be8 8.Qe1 g6 9.Qa1 Ra7 10.Nd4 Ne7 11.c3 Nc8 12.e6 Kg8
19 00:02 17,092,414 7,794,078 +1.44 1.Rd8 Nd5 2.Nd3 h6 3.Nf3 Qxd8 4.g3 Bb6 5.Nd2 Qe8 6.Rg1 c5 7.Nf4 Rf7 8.Ng2 Kg8 9.Kb1 Nc3+ 10.bxc3
20 00:02 17,798,242 7,795,988 +4.63 1.Rd8 Nxa2+ 2.Kb1 Nc3+ 3.bxc3 Qxd8 4.Qh5 h6 5.Qg6 Qxg5 6.hxg5
21 00:02 18,388,867 7,798,501 +8.97 1.Rd8 Nd5 2.Rxe8 Nxf4 3.Qxb5 Kg8 4.g3 Nd3+ 5.Kb1 Nxf2 6.Rxf8+ Bxf8 7.Qe8
22 00:02 20,950,774 7,826,213 +11.87 1.Rd8 Nd5 2.Rxe8 Nxf4 3.Qxb5 Kg8 4.Rxf8+ Bxf8 5.Qc6 Rb8 6.Qe8 Bb7 7.Qxb8 Bd5 8.a3 Ng6 9.h5 Ne7 10.h6 c6 11.Qe8
23+ 00:03 23,672,505 7,872,465 +12.02 1.Rd8
23+ 00:03 23,897,436 7,879,141 +12.22 1.Rd8
23+ 00:03 24,409,011 7,894,246 +15.76 1.Rd8
23- 00:03 24,417,773 7,894,527 +10.53 1.Rd8 Nd5
23+ 00:03 25,904,459 7,917,010 +14.36 1.Rd8
23+ 00:03 30,186,012 7,962,546 +22.25 1.Rd8
23 00:03 30,482,399 7,963,009 +20.92 1.Rd8 Nd5 2.Rxe8 Nxf4 3.Qxb5 Bb7 4.Rxf8+ Rxf8 5.Qxb7 Bb6 6.Rf1 h6 7.Nh3 Ng6 8.f4 Rd8 9.g3 Nf8 10.Qc6 Rb8 11.c4 Be3+ 12.Kb1 Bxf4 13.Nxf4 a3 14.Nxe6 Rxb2+ 15.Ka1 Nxe6
24- 00:03 30,805,002 7,962,006 +20.82 1.Rd8 Nd5
24- 00:03 31,020,850 7,958,145 +20.72 1.Rd8 Nd5
24- 00:04 33,883,488 7,944,545 +13.91 1.Rd8 Nd5
24- 00:04 36,222,501 7,941,789 +11.86 1.Rd8 Bd7
24+ 00:05 40,350,518 7,918,076 +13.55 1.Rd8
24- 00:05 43,783,249 7,924,569 +9.27 1.Rd8 Bd7
24+ 00:05 45,413,285 7,925,529 +13.04 1.Rd8
24- 00:06 49,915,515 7,920,583 +5.18 1.Rd8 Bd7
24+ 00:06 51,552,728 7,906,860 +11.68 1.Rd8
24 00:07 62,008,847 7,916,359 +17.97 1.Rd8 Nd5 2.Rxe8 Nxf4 3.Qxb5 Bb7 4.Rxf8+ Rxf8 5.Qxb7 Bb6 6.Rf1 Re8 7.Qc6 Rb8 8.Qc4 h6 9.Nh3 Ng6 10.f4 Nf8 11.g3 Ra8 12.Qc6 Rb8 13.c4 Ba5 14.Rf3 g6 15.Ra3
25- 00:08 64,474,494 7,914,865 +17.87 1.Rd8 Nd5
25- 00:08 64,867,409 7,912,589 +17.74 1.Rd8 Nd5
25- 00:08 66,267,534 7,906,876 +16.76 1.Rd8 Nd5
25- 00:08 66,295,938 7,906,492 +16.08 1.Rd8
25- 00:08 66,365,809 7,906,338 +15.48 1.Rd8
25- 00:08 68,012,931 7,910,319 +14.69 1.Rd8 Bd7
25 00:09 73,050,665 7,932,529 +8.71 1.Rd8 Bd7
and Lc0 (Leela) likes it from the get go.
Code: Select all
FEN: r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - 0 1
Lc0:
8 00:00 914 6,623 -0.24 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Qh5 Bxf2 6.Kb1 Be3 7.g6 Rf6
8 00:00 947 6,355 -0.27 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.gxf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3
8 00:00 983 6,467 -0.29 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.gxf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 Bf8
8 00:00 1,116 6,642 -0.32 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 a3 8.Rh8+ Kxh8
8 00:00 1,255 6,857 -0.33 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 Bf8 10.Qh5 gxf6
9 00:00 1,312 7,053 -0.32 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 Nxa2+ 8.Kb1 a3 9.Qh7+ Kf8 10.Qh8+
9 00:00 1,444 7,184 -0.33 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 a3 8.Qh7+ Kf8 9.Qh8+ Kf7 10.Qxg7+
9 00:00 1,529 6,856 -0.30 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 a3 8.Qh7+ Kf8 9.Qh8+ Kf7 10.Qxg7+ Ke8 11.Rh8+ Bf8
9 00:00 1,584 6,827 -0.28 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 a3 10.Qh7+ Kf8
10 00:00 1,680 6,511 -0.26 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 a3 10.Qh7+ Kf8
10 00:00 1,811 6,682 -0.23 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 a3 10.Qh7+ Kf8 11.Qh8+
11 00:00 2,125 7,302 -0.11 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 a3 10.Qh7+ Kf8 11.Qh8+
12 00:00 2,919 7,997 -0.05 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 a3 10.Qh7+ Kf8 11.Qh8+
12 00:00 3,641 8,773 -0.02 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 Nc3+ 9.bxc3 Qf7 10.Qh7+ Kf8 11.Qh8+ Qg8 12.fxg7+ Kf7
12 00:00 4,094 9,368 +0.01 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 Nc3+ 9.bxc3 Bf8 10.Qh5 gxf6 11.gxf6 Bg7 12.Qh7+ Kf8 13.Qg6
13 00:00 4,590 9,542 +0.04 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 Nc3+ 9.bxc3 Bf8 10.Qh5 gxf6 11.gxf6 Bg7 12.Qh7+ Kf8 13.Qg6
14 00:00 8,618 9,837 +0.11 1.Rd8 Nxa2+ 2.Kb1 Qxd8 3.Qh5 h6 4.Qg6 hxg5 5.Qh5+ Kg8 6.hxg5 Nc3+ 7.bxc3 Re8 8.g6 Qh4 9.Rxh4 Kf8 10.Qg5 Kg8 11.Qh5 Kf8
14 00:00 8,816 9,677 +0.10 1.Rd8 Nxa2+ 2.Kb1 Qxd8 3.Qh5 h6 4.Qg6 hxg5 5.Qh5+ Kg8 6.hxg5 Nc3+ 7.bxc3 Re8 8.g6 Qh4 9.Rxh4 Kf8 10.Qg5 Kg8 11.Qh5 Kf8
14 00:00 9,061 9,701 +0.09 1.Rd8 Nxa2+ 2.Kb1 Qxd8 3.Qh5 h6 4.Qg6 hxg5 5.Qh5+ Kg8 6.hxg5 Nc3+ 7.bxc3 Re8 8.g6 Qh4 9.Rxh4 Kf8 10.Qg5 Kg8 11.Qh5 Kf8
15 00:01 15,543 12,365 +0.19 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
16 00:01 18,842 13,693 +0.15 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
16 00:01 18,997 13,716 +0.14 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
16 00:01 22,998 15,301 +0.09 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
17 00:01 25,590 13,743 +0.12 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
17 00:02 33,726 14,266 +0.36 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
17 00:03 45,816 15,145 +0.52 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
18 00:03 47,078 15,250 +0.54 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
18 00:03 49,125 15,423 +0.56 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
18 00:03 50,236 15,504 +0.57 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.exf6 e5 8.Qh7+ Kf8 9.Qg6 Kg8 10.Qh7+ Kf8 11.Qg6 Kg8
18 00:04 77,504 17,389 +0.67 1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Qd7 6.Nf6+ Rxf6 7.gxf6 Nxa2+ 8.Kb1 Nc3+ 9.bxc3 Rb8 10.Qh7+ Kf7 11.Qxg7+ Ke8 12.Rh8+ Bf8 13.Qxf8+
But I concur, there were many "top" engines that couldn't find it quickly (<30 seconds)