Hard Puzzles found on Gameknot

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MOBMAT
Posts: 315
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Location: USA

Re: Hard Puzzles found on Gameknot

Post by MOBMAT » Mon Jun 22, 2020 3:20 pm

Regarding

I went to bed and let Black-Diamond XR7 chew on it. Well look what it found?

Code: Select all

Black-Diamond-XR7:
...
 31	44:58	 22,525,943k	8,349k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 31	45:01	 22,551,962k	8,349k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 31	45:58	 23,047,062k	8,355k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 32	46:31	 23,333,106k	8,360k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 32	46:37	 23,389,610k	8,362k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 32	48:32	 24,400,596k	8,378k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 33	49:12	 24,749,862k	8,383k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 33	49:23	 24,843,384k	8,384k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 33	49:53	 25,112,925k	8,388k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 34	53:06	 26,809,989k	8,413k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 34	54:04	 27,316,106k	8,420k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 34	55:09	 27,897,491k	8,429k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 35	58:39	 29,775,919k	8,461k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 35	59:46	 30,369,694k	8,469k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 35	1:03:57	 32,550,790k	8,482k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 36	1:05:45	 33,489,531k	8,488k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 36	1:06:56	 34,102,635k	8,491k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 36	1:07:18	 34,302,581k	8,494k	+M17	1.Qxd6 cxd6 2.Be1 Na3 3.Bc3+ Nb1 4.Be5 dxe5 5.d6 e4 6.d7 e3 7.d8B e2 8.Bh4 e1Q 9.Bxe1 Na3 10.Bc3+ Nb1 11.Bf6 gxf6 12.g7 f5 13.g8Q f4 14.Qb3 f3 15.Qa4 f2 16.Rxb1+ Kxb1 17.Qd1+
 36	5:38:19	184,961,052k	9,112k	+M13	1.Qb5 Rc6 2.Qc5 Rxg6 3.Bf2 Rf6+ 4.Ke7 Rf4 5.Qc2 Rxb4 6.Bc5 Rb5 7.Qc4 Ra5 8.Bd4 c5 9.dxc6 g6 10.Qb4 Ra7+ 11.Bxa7 g5 12.Bd4 g4 13.Bxb2+
Appears to be a dual!
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Benchmark: Stockfish 11 64 bmi2 (nps): 2067669

Vinvin
Posts: 4752
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: Hard Puzzles found on Gameknot (cooked?)

Post by Vinvin » Mon Jun 22, 2020 5:44 pm

Vinvin wrote:
Sun Jun 21, 2020 11:36 pm
MOBMAT wrote:
Sun Jun 21, 2020 9:00 pm
Um, this is a weird one. I was using Crystal 2.0 on this...

which the list had as a mate in 17. C2.0 found the mate after a couple of minutes, but I was away from the computer and didn't check back for a couple of hours. Here is what it reported (output from Arena)...

Code: Select all

Crystal 2.0:
...
 38	16:20	 7,194,308k	7,341k	+M17	1.Qa3 Rc6 2.Kxg7 Rc1 3.Bf6 Nxa3 4.Rxc1+ Nb1 5.Rg1 c5 6.b5 c4 7.b6 c3 8.b7 c2 9.b8Q c1Q 10.Rxc1 g1Q 11.Rxg1 Rf2 12.Rxh1 Rc2 13.Rh2 Nd2 14.Kh6 Kb1 15.Rh1+ Nf1 16.Rxf1+ Rc1 17.Qxb2+
 39	42:34	 19,088,989k	7,472k	+M13	1.Qc4 Rc6 2.Qc5 Rxg6 3.Bf2 Rg4 4.Bd4 Rf4+ 5.Kg8 Re4 6.Qc3 Re2 7.Qd3 Re8+ 8.Kf7 c5 9.Kxe8 cxd4 10.Qb3 d3 11.Qa4 d2 12.Rxb1+ Kxb1 13.Qd1+
Could someone verify the M13. Not sure if it is a glitch or a TT issue since my 16Gb of hash maxed out.
I will also start it on another engine just to verify.
It seems ok to me. Not easy to check, a lot of complex variations to check with Crystal.
5 best moves after 1.Qc4 gives distance to mate but 3 moves are longer than mate 12.
I checked this 3 subvariations (Rc6, c5 and c6) and they are all shorter or equal to #12.

It's very interesting to see how this shortest mate is hard to solve.

Code: Select all

Crystal_20200526:

 27/16	01:17	 904 153 237	11 682 622	+M8	1. ... Rxg6 2.b5 Rd6 3.Ke7 g5 4.Bg3 Rh6 5.Be5 Rh7+ 6.Ke8 Rf7 7.Qd4 Rf8+ 8.Kxf8 g4 9.Qxb2+
 27/20	01:17	 904 153 237	11 682 622	+M10	1. ... Rd7 2.Bf6 gxf6 3.Qc6 Rd8+ 4.Ke7 Rd6 5.Qa8 f5 6.g7 Rg6 7.Qa4 Rxg7+ 8.Kf6 Rg6+ 9.Kxg6 c5 10.Rxb1+ Kxb1 11.Qd1+
 27/24	01:17	 904 153 237	11 682 622	+M12	1. ... Rb6 2.Qb3 Rd6 3.b5 c5 4.b6 c4 5.Qa4 Rxd5 6.b7 Rf5+ 7.Kxg7 Rf1 8.b8Q Rxg1 9.Bf6 c3 10.Qba7 Na3 11.Qxg1+ Nb1 12.Qb3 c2 13.Qxb2+
 27/26	01:17	 904 153 237	11 682 622	+M13	1. ... Rc6 2.Qc5 Rxg6 3.Qc2 Rg4 4.Bf2 Rf4+ 5.Ke7 Rxb4 6.Bc5 Rb5 7.Bd4 c5 8.Qa4 Rb7+ 9.Ke6 Rb6+ 10.d6 Rb3 11.Qxb3 cxd4 12.Qa4 d3 13.Rxb1+ Kxb1 14.Qd1+
 27/28	01:17	 904 153 237	11 682 622	+M14	1. ... c5 2.Ke7 Rb6 3.d6 cxb4 4.d7 b3 5.Be1 Rb7 6.Qc5 Na3 7.Qe5 Nb1 8.Ke8 Rb4 9.d8Q Rc4 10.Qdd4 Rc8+ 11.Kf7 Rc2 12.Kxg7 Rd2 13.Qxd2 Nc3 14.Qexc3 Kb1 15.Qcxb2+
 27/30	01:17	 904 153 237	11 682 622	+M16	1. ... c6 2.Kxg7 c5 3.Bg3 Rb6 4.Be5 Rxb4 5.Qc3 Rb7+ 6.Kh6 c4 7.g7 Rb6+ 8.Bf6 Rb3 9.Qd4 c3 10.g8Q c2 11.Qa4 Rc3 12.Bxc3 c1Q+ 13.Rxc1 g1Q 14.Qxg1 Be4 15.Rxb1+ Bxb1 16.Qxb1+ Kxb1

Code: Select all

After 1...Rc6 :
 21/21	00:08	 74 923 239	8 353 577	+M12	2.Qc5 Rxc5 3.bxc5 c6 4.Bf6 cxd5 5.c6 gxf6 6.g7 d4 7.c7 d3 8.c8Q d2 9.Qc2 d1Q 10.Qxd1 f5 11.g8Q f4 12.Qdb3
----------------------------------------------------------------------------------------------------------
After 1...c5 :
 19/23	00:04	 32 970 045	7 958 012	+M12	2.Ke7 Rb6 3.d6 cxb4 4.Bf6 b3 5.Qd4 Rb7+ 6.d7 gxf6 7.g7 Rb5 8.d8Q Rb7+ 9.Kf8 Rb5 10.Qd1 Rf5 11.Qxb1+ axb1Q 12.Qa8+ Ra5 13.Qxa5+
----------------------------------------------------------------------------------------------------------
Ater 1...c6
 25/23	00:05	 46 076 235	8 110 585	+M12	2.b5 c5 3.Qa4 Rxd5 4.Bf6 gxf6 5.g7 Rd8+ 6.Ke7 Rd4 7.Qc2 Rg4 8.g8Q Rxg8 9.Qa4 Rg7+ 10.Ke6 Rd7 11.Kxd7 f5 12.Rxb1+ Kxb1 13.Qd1+
Update after some learning, no deeper than mates in 12 after 1.Qc4 and same after 1.Qb5 :

after 1.Qc4

Code: Select all

FEN: 5K2/2p3p1/3r2P1/3P4/1PQ4B/7p/pp4pr/kn4Rb b - - 1 1

Crystal_20200526:
 ...
 30/20	03:27	1 975 123 914	9 531 347	+M10	1. ... Rd7 2.Bf6 gxf6 3.Qc6 Rd8+ 4.Ke7 Rd6 5.Qa8 f5 6.g7 Rg6 7.Qa4 Rxg7+ 8.Kf8 Rg8+ 9.Kxg8 f4 10.Rxb1+ Kxb1 11.Qd1+
 31/34	03:27	1 975 123 914	9 531 347	+M11	1. ... Rb6 2.Qb3 Rd6 3.b5 c6 4.b6 c5 5.b7 c4 6.Qa4 Rxd5 7.b8Q Rf5+ 8.Kxg7 Rf1 9.Bf6 c3 10.Qbb3 Na3 11.Bxc3 Rxg1 12.Qxb2+
 31/25	03:27	1 975 123 914	9 531 347	+M12	1. ... c5 2.Ke7 Rb6 3.d6 cxb4 4.Bf6 gxf6 5.d7 Rb7 6.g7 Ra7 7.Qxb4 Ra8 8.g8R Rxg8 9.Qa4 Rg7+ 10.Ke6 Re7+ 11.Kxe7 f5 12.Rxb1+ Kxb1 13.Qd1+
 31/34	03:27	1 975 123 914	9 531 347	+M12	1. ... Rc6 2.Qc5 Rxc5 3.bxc5 c6 4.Bf6 cxd5 5.c6 gxf6 6.c7 d4 7.c8Q d3 8.Qc4 d2 9.Qa4 d1Q 10.Qxd1 f5 11.Qa4 f4 12.Rxb1+ Kxb1 13.Qd1+
 31/33	03:27	1 975 123 914	9 531 347	+M12	1. ... c6 2.b5 c5 3.Qa4 Rxd5 4.Bf6 gxf6 5.g7 Rd8+ 6.Ke7 Rd4 7.Qc2 Rg4 8.g8R Rxg8 9.Qa4 Rg7+ 10.Kd6 Rd7+ 11.Kxd7 f5 12.Rxb1+ Kxb1 13.Qd1+
after 1.Qb5

Code: Select all

FEN: 5K2/2p3p1/3r2P1/1Q1P4/1P5B/7p/pp4pr/kn4Rb b - - 1 1

Crystal_20200526:
...
 28/12	00:50	 567 228 891	11 216 041	+M6	1. ... Rxd5 2.Qxd5 c5 3.Qd7 cxb4 4.Qxg7 b3 5.Be1 Na3 6.Bc3+ Nb1 7.Bxb2+
 28/16	00:50	 567 228 891	11 216 041	+M8	1. ... Rb6 2.Qxb6 cxb6 3.d6 b5 4.Bf6 gxf6 5.d7 f5 6.d8N f4 7.Nc6 f3 8.Nd4 f2 9.Nb3+
 28/20	00:50	 567 228 891	11 216 041	+M10	1. ... c5 2.Qc6 Rxc6 3.dxc6 c4 4.c7 c3 5.c8Q c2 6.Bf6 c1R 7.Qxc1 gxf6 8.Qc2 f5 9.Qa4 f4 10.Rxb1+ Kxb1 11.Qd1+
 29/24	00:50	 567 228 891	11 216 041	+M12	1. ... c6 2.Qa4 Rxd5 3.Bf6 Rd7 4.Kg8 Rd2 5.Kxg7 c5 6.b5 Rd7+ 7.Kh6 Rd6 8.b6 c4 9.b7 Rd3 10.b8Q Rc3 11.Rxb1+ Kxb1 12.Qd1+ Rc1 13.Qxb2+
 29/30	00:50	 567 228 891	11 216 041	+M12	1. ... Rc6 2.Qc5 Rxc5 3.bxc5 c6 4.Bf6 cxd5 5.c6 gxf6 6.c7 d4 7.c8Q d3 8.Qc4 d2 9.Qa4 d1Q 10.Qxd1 f5 11.Qa4 f4 12.Rxb1+ Kxb1 13.Qd1+

Dann Corbit
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Re: Hard Puzzles found on Gameknot

Post by Dann Corbit » Mon Jun 22, 2020 9:10 pm

Wow, thanks for the help.
I should have tried Chest, but I rarely do for really deep mates.
Maybe I leaned a lesson.
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.

MOBMAT
Posts: 315
Joined: Sat Feb 04, 2017 10:57 pm
Location: USA

Re: Hard Puzzles found on Gameknot

Post by MOBMAT » Mon Jun 22, 2020 10:05 pm

I ran Crystal 2.0 with MultiPv=3 and at depth 38...


Code: Select all

Crystal 2.0:
---------------------------------------------------------------------------
 38	1:09:45	 30,272,645k	7,232k	+M15	1.Qd3 c5 2.Ke7 Rb6 3.d6 c4 4.Qe2 c3 5.Bf6 Rxb4 6.d7 Rb7 7.Qc2 Ra7 8.Qxc3 gxf6 9.g7 Ra4 10.g8Q Re4+ 11.Kf8 Ra4 12.d8Q Rg4 13.Qb8 Rb4 14.Qbxb4 f5 15.Qcxb2+
 38	1:09:45	 30,272,645k	7,232k	+M13	1.Qb5 Rc6 2.Qc5 Rxg6 3.Qc2 Rg4 4.Bf2 Rf4+ 5.Ke7 Rxb4 6.Bc5 Rb5 7.Qc4 Ra5 8.Bd4 c5 9.dxc6 g5 10.Qb3 Ra7+ 11.Bxa7 g4 12.Bd4 g3 13.Qxb2+
 38	1:09:45	 30,272,645k	7,232k	+M13	1.Qc4 Rc6 2.Qc5 Rxg6 3.Qc2 Rg4 4.Bf2 Rf4+ 5.Ke7 Rxb4 6.Bc5 Rb5 7.Qc4 Ra5 8.Bd4 c5 9.dxc6 g5 10.Qb3 Ra7+ 11.Bxa7 g4 12.Bd4 g3 13.Qxb2+
I didn't let it continue as my hash was maxed out and I had other things to test.
i7-6700K @ 4.00Ghz (using 6 threads), EGTBs on PCI SSD
Benchmark: Stockfish 11 64 bmi2 (nps): 2067669

MOBMAT
Posts: 315
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Location: USA

Re: Hard Puzzles found on Gameknot

Post by MOBMAT » Mon Jun 22, 2020 10:06 pm

Dann Corbit wrote:
Mon Jun 22, 2020 9:10 pm
Wow, thanks for the help.
I should have tried Chest, but I rarely do for really deep mates.
Maybe I leaned a lesson.
If the position is a complete unknown, what are the best settings in ChestUCI to minimize the time to solve? Specifically, the "SearchMethod" setting.
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Benchmark: Stockfish 11 64 bmi2 (nps): 2067669

Dann Corbit
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Re: Hard Puzzles found on Gameknot

Post by Dann Corbit » Mon Jun 22, 2020 11:50 pm

MOBMAT wrote:
Mon Jun 22, 2020 10:06 pm
Dann Corbit wrote:
Mon Jun 22, 2020 9:10 pm
Wow, thanks for the help.
I should have tried Chest, but I rarely do for really deep mates.
Maybe I leaned a lesson.
If the position is a complete unknown, what are the best settings in ChestUCI to minimize the time to solve? Specifically, the "SearchMethod" setting.
I don't know. Most of time when I used chest it is for short mates (dm 8 or less) and I use chest319.
When I use the UCI version, I generally use autoturbo. But I guess that there are better settings.
I find that reading the instructions leaves me more confused than before I started.
I have tried using database mode, but that only looks up the database value and does not compute anything.
I have found that the behavior changes a lot when you change maximum depth of search. I have no idea why.
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.

MikeGL
Posts: 953
Joined: Thu Sep 01, 2011 12:49 pm

Re: Hard Puzzles found on Gameknot

Post by MikeGL » Tue Jun 23, 2020 5:19 am

Thanks for the solutions posted.
Could be a cook due to many alternative quick mates.
Yes i agree with your line, maybe your mate in 17 solution was the intended solution by the composer
with B promotions twice:

I told my wife that a husband is like a fine wine; he gets better with age. The next day, she locked me in the cellar.

Dann Corbit
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Re: Hard Puzzles found on Gameknot

Post by Dann Corbit » Tue Jun 23, 2020 7:30 am

Here are the 60 puzzles where we found a shorter mate than the claimed mate distance for gameknot puzzles:

Code: Select all

1q2n1K1/Rp4p1/pPpPPrp1/PrQp1B1R/5B2/3p2p1/2b2n2/3N2k1 w - - acd 57; bm Qxf2+; ce 32712; dm 28; dm-claim 72; pv Qxf2+ gxf2 Rg5+ Kf1 Bh3+ Ke2 Bg4+ Kf1 Ne3+ Ke1 Nxc2+ dxc2 Re5+ Kf1 Bh3+ Kg1 Rg5+ Kh1 Bg2+ Kg1 Be4+ Kf1 Bd3+ Ke1 Re5+ Kd1 Be2+ Ke1 Bxb5+ Kd1 Be2+ Ke1 Bg4+ Kf1 Bh3+ Kg1 Rg5+ Kh1 Bg2+ Kg1 Bxd5+ Kf1 Bc4+ Ke1 Re5+ Kd1 Be2+ Ke1 Bxa6+ Kd1 Be2+ Ke1 Bg4+ Kf1 Bh3+; 
1QNn3K/5p2/1n3p2/bprk1p2/r4P2/p5P1/4PPP1/1B6 w - - acd 72; bm Qd6+; ce 32700; dm 34; dm-claim 64; pv Qd6+ Kc4 Ba2+ Kc3 Qd3+ Kb2 Qb1+ Kc3 Qc1+ Kb4 Qd2+ Rc3 Qd6+ Rc5 Ne7 Kc3 Qd3+ Kb2 Qb1+ Kc3 Qc1+ Kb4 Qd2+ Rc3 Qxd8 Rc8 Nxc8 Nc4 Qd4 Bd8 Qxd8 Ra8 Kg7 Ra6 Qd5 Re6 Na7 Rb6 Nc6+ Rxc6 Qxc6 Nb2 Qd6+ Ka4 Qc5 Nc4 Bxc4 bxc4 Qxc4+ Ka5 Kxf7 a2 Qxa2+ Kb4 Qb2+ Kc4 Ke6 Kc5 Qb3 Kc6 Qb4 Kc7 Qb5 Kc8 Kd6 Kd8 Qd7+; 
8/5rpp/6kr/1p3p1b/1P3Pp1/2p2pP1/2P2P1K/4Q1B1 w - - acd 53; bm Qe6+; ce 32716; dm 26; dm-claim 54; pv Qe6+ Rf6 Qe8+ Rf7 Kh1 Kf6 Qe5+ Kg6 Qe6+ Rf6 Qe8+ Rf7 Bh2 Kf6 Qe5+ Kg6 Qe6+ Rf6 Qe8+ Rf7; 
8/1r6/BPp5/3p4/p3p3/1p3Rp1/3p1B1p/1K1k2bN w - - acd 31; bm Re3; ce 32738; dm 15; dm-claim 38; pv Re3 Bxf2 Nxf2+ gxf2 Be2+ Ke1 Bg4+ Kf1 Bh3+ Kg1 Rg3+ Kh1 Bg2+ Kg1 Bxe4+ Kf1 Bd3+ Ke1 Re3+ Kd1 Be2+ Ke1 Bg4+ Kf1 Bh3+ Kg1 Rg3+ Kh1 Bg2+; 
2R1B3/6p1/8/1p6/bp4P1/qp3P2/p2K4/bk6 w - - acd 37; bm Bg6+; ce 32752; dm 8; dm-claim 20; pv Bg6+ Kb2 Be4 g5 f4 gxf4 Rd8 f3 Bxf3 Kb1 Be4+ Kb2 Rd3 Kb1 Rxb3+; 
rb3R2/Npk1r2b/3Npp2/1PP1n1B1/4p3/4p3/4p2Q/K4B1q w - - acd 27; bm Ne8+; ce 32742; dm 13; dm-claim 23; pv Ne8+ Rxe8 Qxe5+ fxe5 b6+ Kd7 Rf7+ Re7 Rxe7+ Kd8 Rxe6+ Kd7 Re7+ Kd8 Rxe5+ Kd7 Re7+ Kd8 Rxe4+ Kd7 Re7+ Kd8 Rxe3+ Kd7 Re7+; 
4R1bk/4qp2/2Kp1p1B/2n2PnR/1p2pp1b/r3p3/3p4/2r5 w - - acd 33; bm Bxg5+; ce 32736; dm 16; dm-claim 25; pv Bxg5+ Kg7 Bh6+ Kh8 Bxf4+ Kg7 Bh6+ Kh8 Bxe3+ Kg7 Bh6+ Kh8 Bxd2+ Kg7 Bh6+ Kh8 Bxc1+ Kg7 Bh6+ Kh8 Bf8+ Bh7 Bxe7+ Kg7 Bf8+ Kh8 Bxd6+ Kg7 Bf8+ Kh8 Bxc5+; 
Rn1kr3/1p1np3/1PP1q1p1/5b2/1Pp5/R1Pp2Pp/P7/3Q2K1 w - - acd 39; bm c7+; ce 32730; dm 19; dm-claim 27; pv c7+ Kc8 Rxb8+ Nxb8 cxb8=Q+ Kxb8 Ra8+ Kxa8 Qa4+ Kb8 Qa7+ Kc8 Qa8+ Kd7 Qxb7+ Kd6 Qc7+ Kd5 Qc5+ Ke4 Qd4+ Kf3 Qf2+ Ke4 Qf4+ Kd5 Qd4+ Kc6 Qc5+ Kb7 Qc7+ Ka8; 
RQ2Knbb/1p6/1q2k1p1/r3P2r/3P3P/1p1p1pnP/2NP4/8 w - - acd 29; bm Qc8+; ce 32740; dm 14; dm-claim 21; pv Qc8+ Kd5 Rxa5+ Qxa5 Qxb7+ Ke6 Qc6+ Kf5 Qxf3+ Ke6 Qc6+ Kf5 Ne3+ Kf4 Ng2+ Kf5 Qf3+ Ke6 Nf4+ Kf5 Nxh5+ Ke6 Nf4+ Kf5 Nxd3+ Ke6 Nf4+; 
r3qn1k/7p/3P1R1P/6N1/8/3K2Q1/1p6/5n2 w - - acd 39; bm Rxf8+; ce 32730; dm 19; dm-claim 26; pv Rxf8+ Qxf8 Qe5+ Kg8 Qd5+ Kh8 Qd4+ Kg8 Qc4+ Kh8 Qc3+ Kg8 Qb3+ Kh8 Qxb2+ Kg8 Qb3+ Kh8 Nf7+ Qxf7 Qxf7 Ra3+ Ke2; 
8/7B/8/8/1p1N4/2nR3R/n1ppppp1/K1k1bqrb w - - acd 31; bm Nb3+; ce 32740; dm 14; dm-claim 21; pv Nb3+ Kd1 Kb2 Na4+ Kxa2 Nc3+ Ka1 Na4 Rd8 Nc5 Ka2 Na4 Bxc2+ Kxc2 Nd4+ Kd1 Rc8 Nc3+ Rhxc3 bxc3 Rc5 Kc1 Rxc3+ Kd1 Rb3 Kc1 Rb1+; 
8/8/8/8/7r/1n2qpQ1/k1K1p3/b3R2R w - - acd 35; bm Rxa1+; ce 32734; dm 17; dm-claim 24; pv Rxa1+ Nxa1+ Rxa1+ Kxa1 Qe1+ Ka2 Qa5+ Qa3 Qd5+ Ka1 Qe5+ Rd4 Qxd4+ Ka2 Qd5+ Ka1 Qe5+ Ka2 Qe6+ Ka1 Qf6+ Ka2 Qf7+ Ka1 Qg7+ Ka2 Qg8+ Ka1 Qg1+ e1=Q Qxe1+ Ka2; 
6rr/pR6/8/b3N3/p5p1/4BpPP/2p1pPn1/1b1k2K1 w - - acd 33; bm Rd7+; ce 32736; dm 16; dm-claim 23; pv Rd7+ Ke1 Nd3+ Kd1 Nb4+ Ke1 Bd2+ Kd1 Bh6+ Ke1 Nd3+ Kd1 Ne5+ Ke1 hxg4 Rf8 Nd3+ Kd1 Nb4+ Ke1 Bd2+ Kd1; 
2r2b2/2R5/3p3p/1b5k/1p3K2/2N5/1p1pN1Bp/q1R5 w - - acd 31; bm Ng3+; ce 32738; dm 15; dm-claim 22; pv Ng3+ Kh4 Nf5+ Kh5 Bf3+ Kg6 Nh4+ Kf6 Ne4+ Ke6 Bg4+ Kd5 Nf6+ Kd4 Nf3+ Kd3 Bf5+ Ke2 Nd4+ Kf2 Ng4+ Kg2 Be4+ Kh3 Nf2+ Kh4 Nf5+ Kh5 Bf3+; 
1r6/1pPp1p1p/1P1P1P1P/2N2p2/2K1n3/P6p/2P1P1pr/4R1bk w - - acd 75; bm cxb8=Q; ce 32744; dm 12; dm-claim 18; pv cxb8=Q Nxc5 Qe8 Ne4 Qe5 Nd2+ Kd3 Nf1 Qd5 Ng3 Qf3 f4 e3 Nf1 Rxf1 fxe3 Rxg1+ Kxg1 Kxe3 Kh1 Qd5 Kg1 Qd1+; 
1bk5/2p2R1p/1ppp4/3p3p/1n1NNp1r/8/8/1B1K2n1 w - - acd 25; bm Nxd6+; ce 32744; dm 12; dm-claim 18; pv Nxd6+ cxd6 Bf5+ Kd8 Ne6+ Ke8 Ng5 Kd8 Bd7 Kc7 Be6+ Kd8 Rd7+ Kc8 Rxh7+ Kd8 Bd7 Kc7 Bf5+ Kd8 Ne6+ Kc8 Nd4+; 
8/1p1p1p2/1P1P1P2/2Kp3N/R3b3/6P1/pp2P3/kn5R w - - acd 110; bm Rg1; ce 32750; dm 9; dm-claim 15; pv Rg1 Bc2 Rd4 Bf5 Nf4 Bh3 Ra4 d4 Nd5 Be6 Nb4 d3 exd3 Bb3 Rxa2+ Bxa2 Nc2+; 
qrb5/bp1p4/rk1P4/p5R1/B3p1p1/P3Pp2/5P1B/1K4N1 w - - acd 58; bm Kc2; ce 32748; dm 10; dm-claim 16; pv Kc2 g3 Rxg3 Kc5 Rg5+ Kb6 Be5 Kc5 Bg3+ Kb6 Ne2 fxe2 f3 exf3 e4 e1=Q Bxe1 f2 Bxf2+; 
1q6/1pRBp3/4p3/K1p1p3/2pkp3/2p3N1/2Rr1P2/4N3 w - - acd 36; bm Rxd2+; ce 32738; dm 15; dm-claim 20; pv Rxd2+ cxd2 Ne2+ Kd5 Nc3+ Kd4 Nb5+ Kd5 Kb6 e3 f3 Qd8 Nc2 d1=N Kxb7 c3 Nba3 e4 f4 e5 f5 Qxc7+ Kxc7 c4 Kb6 e6 Nb5 exf5 Nb4+; 
2K3N1/1p3pp1/pN1k3b/2pP4/2p4P/p1P1R3/P3Pn2/8 w - - acd 245; bm Re7; ce 32756; dm 6; dm-claim 11; pv Re7 Bf4 Kxb7 Bg5 hxg5 a5 Nc8+ Kxd5 Kc7 Ne4 Nb6+; 
2n5/2BBn2r/N2p1b2/2P1k3/5p2/1PpKN1P1/3P3p/1r6 w - - acd 29; bm Nc4+; ce 32740; dm 14; dm-claim 19; pv Nc4+ Kd5 Bb6 Nxb6 Nxb6+ Ke5 Nc4+ Kd5 b4 Rxb4 Nc7+ Kxc5 Ne6+ Kd5 Nxf4+ Kc5 Ne6+ Kd5 Nc7+ Kc5 Na6+ Kd5 Nxb4+ Kc5 Na6+ Kd5 Ne3+; 
3Q4/7p/2p4p/3nR2K/3k1PP1/N1p1pP2/p3r1p1/r1B5 w - - acd 17; bm Qh8; ce 32752; dm 8; dm-claim 12; pv Qh8 Nxf4+ Kxh6 Rd2 Re4+ Kc5 Rc4+ Kd5 Qd8+ Ke6 Re4+ Kf7 Re7+ Kf6 Qf8#; 
4n3/2PBN1p1/b7/4k1pP/2p1Np2/1PP2KB1/qb1PPP2/3r4 w - - acd 15; bm e3; ce 32754; dm 7; dm-claim 11; pv e3 g4+ Bxg4 fxg3 d4+ cxd3ep c4 Bxc4 Nc6+ Kd5 c8=Q g6 Qe6#; 
5K2/2p3p1/Q2r2P1/3P4/1P5B/7p/pp4pr/kn4Rb w - - acd 46; bm Qc4; ce 32742; dm 13; dm-claim 17; pv Qc4 Rc6 Qc5 Rxg6 Qc2 Rg4 Bf2 Rf4+ Ke7 Rxb4 Be1 Rb8 Qa4 Rb7 Bf2 c6+ Kd6 Rb3 Qxb3 c5 Bxc5 g5 Bd4 g4 Qxb2+; 
kn2n2K/6p1/1P1P4/1R3bR1/p1P3p1/BP6/1p1r3b/4NB2 w - - acd 26; bm Bg2+; ce 32746; dm 11; dm-claim 15; pv Bg2+ Rxg2 b7+ Ka7 Bc5+ Ka6 Nd3 Bxd3 Rb6+ Ka7 Rb4+ Ka6 Rxg7 Nxg7 Rb6+ Ka7 Rc6+ Kxb7 Rc7+ Ka8 Ra7+; 
8/7R/8/6p1/7r/3N4/7p/3KN1kr w - - acd 89; bm Re7; ce 32746; dm 11; dm-claim 15; pv Re7 Ra4 Re2 g4 Ng2 Ra1+ Nc1 Ra3 Kd2 Rh3 Ne3 Rg3 Nd3 Rxe3 Kxe3 Kf1 Rf2+ Kg1 Nf4 g3 Ne2+; 
8/1r6/nPp5/1B1p4/p3p3/1p1rbRQR/3p1p1p/1K2kn2 w - - acd 73; bm Rxe3+; ce 32696; dm 36; dm-claim 39; pv Rxe3+ Rxe3 Qxe3+ Nxe3 Rxe3+ Kd1 Be2+ Ke1 Bxa6+ Kd1 Be2+ Ke1 Bg4+ Kf1 Bh3+ Kg1 Rg3+ Kh1 Bg2+ Kg1; 
8/3R3K/r1p5/1p6/2B2p1b/p2Np1p1/P1pB1p2/r2k4 w - - acd 31; bm Nxf2+; ce 32738; dm 15; dm-claim 18; pv Nxf2+ gxf2 Bxe3+ Ke1 Bd2+ Kd1 Bxf4+ Ke1 Bd2+ Kd1 Bg5+ Ke1 Re7+ Kd1 Be2+ Ke1 Bxb5+ Kd1 Be2+ Ke1 Bxa6+ Kd1 Be2+ Ke1 Bc4+ Kd1 Rd7+ Ke1 Bd2+; 
BR1b2br/5p2/4n3/KN6/N1k5/P2p3r/P2PP3/5n2 w - - acd 27; bm Rxd8; ce 32742; dm 13; dm-claim 16; pv Rxd8 Nxd8 Nb6+ Kc5 Nd7+ Kc4 Nd6+ Kd4 Nf5+ Kc4 Nb6+ Kc5 Na4+ Kc4 e4 f6 Nb6+ Kc5 Nd7+ Kc4 Nd6+ Kd4; 
Q7/1pK5/n2pp3/P1R1b3/4P1pp/3R1bkr/1P3p1p/2B2B1n w - - acd 70; bm Kd8; ce 32738; dm 15; dm-claim 18; pv Kd8 Nxc5 Ra3 b6 axb6 Bf4 Qb8 e5 Kc8 Bxc1 Qxd6 Kf4 Qf6+ Kxe4 b7 Bg5 Qxg5 Kd4 b8=Q Bb7+ Kd8 Ne6+ Ke7 Nxg5 Qd6+ Ke4 Ra4+ Kf5 Qf6+; 
8/1p3p2/1B6/p5P1/1PBP1p1r/1PkNpP1r/1n1p3P/1K1b2Q1 w - - acd 26; bm Nxb2; ce 32750; dm 9; dm-claim 12; pv Nxb2 Bc2+ Ka1 a4 Qf1 axb3 Nd1+ Kxb4 Bd5 e2 Qxe2 b2+ Kxb2 Bb3 Bxb3 f6 Qc4+; 
7k/bR1N2p1/2p2p2/8/q1pr1N2/2p2pRp/2n2B2/6nK w - - acd 26; bm Bxd4; ce 32750; dm 9; dm-claim 12; pv Bxd4 Qa1 Nxf6 Ne2+ Kh2 Qh1+ Kxh1 Nxg3+ Kh2 gxf6 Bxf6+ Kg8 Rg7+ Kf8 Ne6+ Ke8 Re7+; 
8/1NK2n2/4k3/2BN2p1/3pPnR1/3r1P2/8/8 w - - acd 27; bm Nxf4+; ce 32748; dm 10; dm-claim 12; pv Nxf4+ Kf6 Nxd3 Kg6 Nd6 Nxd6 Bxd6 Kh5 Be7 Kh6 Rxg5 Kh7 Ne5 Kh8 Bf6+ Kh7 Rh5+ Kg8 Rh8+; 
5B1K/7B/7p/7P/8/R5PN/rppPp2N/bkrbR3 w - - acd 30; bm Re3; ce 32744; dm 12; dm-claim 14; pv Re3 Ra8 Kg7 Ka2 Bg8+ Kb1 Re6 Ra7+ Kxh6 Ra5 d4 Ra3 Bxa3 Ka2 Re3+ Kb1 Rg1 e1=Q Rexe1 Be2 Rxc1+ bxc1=Q+ Rxc1+; 
4N3/p1QK1pp1/1rNP4/1p1k1Bn1/8/1P2p3/3prB2/4b3 w - - acd 70; bm Ne7+; ce 32742; dm 13; dm-claim 15; pv Ne7+ Kd4 Kc8 Ne6 Bxe6 Rxf2 d7 fxe6 d8=Q+ Ke4 Qc2+ Kf3 Qd4 Rb8+ Kxb8 Rh2 Qce4+ Kf2 Qexe3+ Kf1 Qg1+ Ke2 Qgg4+ Kf1 Qdg1+; 
3R2K1/1b2NN1p/5p2/b2P4/1P1k1B2/1P1p1pP1/np1P1Pp1/7q w - - acd 27; bm Be3+; ce 32742; dm 13; dm-claim 15; pv Be3+ Ke4 Nd6+ Ke5 Bf4+ Kd4 Ndf5+ Ke4 Rd6 Bc8 Rc6 Qc1 Nd6+ Kd4 Be3+ Ke5 Nf7+ Ke4 Rxf6 Qc7 Ng5+ Ke5 Nxf3+ Ke4 Ng5+; 
2bK3B/1p6/1pk5/4Rp1p/5P2/7n/p1NbP1Nq/5r2 w - - acd 29; bm Nd4+; ce 32740; dm 14; dm-claim 16; pv Nd4+ Kd6 Nb5+ Kc6 Na7+ Kd6 Nxc8+ Kc6 Ne7+ Kd6 Nxf5+ Kc6 Nd4+ Kd6 e4 Nxf4 Nf5+ Kc6 Ne7+ Kd6 Nxf4 Rxf4 Nc8+ Kc6 Na7+ Kd6 Nb5+; 
3Q4/4p3/3r1N1B/p2P1pr1/2K2k1b/PP1Pp1p1/4P1P1/8 w - - acd 26; bm Qxe7; ce 32746; dm 11; dm-claim 13; pv Qxe7 Rxf6 Qxf6 Kg4 Bxg5 Bxg5 Qg6 Kh4 d6 a4 d7 axb3 Kd5 b2 Qh7+ Kg4 Qh3+ Kf4 Ke6 b1=Q Qxf5+; 
R2r4/1prB4/b1p5/1pK5/k7/8/PP6/3R4 w - - acd 17; bm Rxd8; ce 32752; dm 8; dm-claim 10; pv Rxd8 b6+ Kxb6 Rb7+ Kxa6 Ra7+ Kxa7 c5 Rc1 c4 Rxc4+ Ka5 Rd4 b4 Rd5#; 
K1b4r/1nNp2pq/8/n1pPPPR1/p3B1R1/Pk4pr/p4p2/B5b1 w - - acd 31; bm Rxg3+; ce 32738; dm 15; dm-claim 17; pv Rxg3+ Kc4 Bd3+ Kb3 Bb1+ Rxg3 Rxg3+ Kc4 Rc3+ Kd4 Rf3+ Kc4 Bd3+ Kb3 Be4+ Kc4 d6 Qg8 Bd3+ Kb3 Bb1+ Kc4 Rc3+ Kd4 Rg3+ Kc4 Bd3+ Kb3 Be4+; 
K3N3/3p2B1/1N1Pk3/pPp3pB/5pP1/5pP1/2p5/1q2b3 w - - acd 68; bm Nc4; ce 32750; dm 9; dm-claim 11; pv Nc4 Kd5 Bf7+ Ke4 Bg6+ Kd5 Bd3 Ke6 Bf5+ Kf7 Ne5+ Kg8 Bh6 Kh8 Nf6 f2 Ng6+; 
n2R1q2/p3r2n/1kP1p3/2pP2Q1/ppB4p/p4p2/7B/3b3K w - - acd 26; bm Rxf8; ce 32744; dm 12; dm-claim 14; pv Rxf8 Nxg5 Rb8+ Ka5 Rb5+ Ka6 Rxc5+ Kb6 Rb5+ Ka6 Bg1 Nc7 Rb8+ Nb5 Rxb5 f2 Bxf2 Bf3+ Kh2 Nh3 Rb6+ Ka5 Ra6+; 
nb1K1k1r/qrp2p1p/bpPppP1P/1p2n1N1/1P2PQ2/6P1/8/8 w - - acd 34; bm Qc1; ce 32744; dm 12; dm-claim 14; pv Qc1 Nd3 Qd2 Ne5 Qc2 Nc4 e5 Na5 Qg2 Nc4 Qe4 Nxe5 g4 Ng6 Nxe6+ Kg8 Nf4 Ne5 Ke8 Nxg4 Qg2 d5 Qxg4+; 
8/4pbrr/2R1p2b/1P1kP1p1/2N1pn1P/K3PR2/4n2B/8 w - - acd 17; bm Rf1; ce 32752; dm 8; dm-claim 10; pv Rf1 Nc3 Kb4 Na2+ Ka5 Nc3 Rf2 Nb1 Rc2 g4 Rc5+ Kxc5 Nb6+ Nc3 Rxc3#; 
B3R3/N6p/n1n2p2/1QR1pkB1/3q2pP/p6b/2P2p1r/2K3N1 w - - acd 23; bm Rcxe5+; ce 32746; dm 11; dm-claim 13; pv Rcxe5+ Nxe5 Rxe5+ fxe5 Be4+ Kxe4 Qb7+ Qd5 Qxh7+ Kd4 Qd3+ Kc5 Qb5+ Kd4 c3+ Ke4 Qb1+ Qd3 Qb7+ Kf5 Qf7+; 
8/5K2/8/7n/ppR2p2/p3p3/2NPB3/bkN5 w - - acd 26; bm Nxb4; ce 32750; dm 9; dm-claim 10; pv Nxb4 Bb2 Bd3+ Ka1 Nc2+ Kb1 Nxa3+ Ka1 Nc2+ Kb1 Nxe3+ Ka1 Rxa4+ Ba3 Nc4 f3 Rxa3+; 
2bK4/1pN5/1pk2p2/5p2/1Pn1pP2/p3PP2/2Nn4/1B1rbr2 w - - acd 31; bm Nd4+; ce 32738; dm 15; dm-claim 16; pv Nd4+ Kd6 Ndb5+ Kc6 Na7+ Kd6 Nxc8+ Kc6 Ne7+ Kd6 Nxf5+ Kc6 Nd4+ Kd6 Ncb5+ Kd5 Nc3+ Kd6 Bxe4 Nxe4 Nxe4+ Kd5 Nxf6+ Kd6 Ne8+ Kd5 Nc7+ Kd6 Ncb5+; 
2bn4/pk1NP1p1/8/3NpP2/3b2p1/2pKQ2p/1p4np/8 w - - acd 29; bm exd8=N+; ce 32740; dm 14; dm-claim 15; pv exd8=N+ Ka6 Nc7+ Ka5 Nc6+ Ka4 Qxd4+ exd4 Nc5+ Ka3 Nb5+ Ka2 Nb4+ Kb1 Kxd4 Kc1 Nb3+ Kd1 Nxc3+ Ke1 Nd3+ Kf1; 
1k6/1B1pp3/1pbR1p2/2Nn1Pb1/RP4P1/BP3p1N/5r2/1K1n1r2 w - - acd 31; bm Ra8+; ce 32738; dm 15; dm-claim 16; pv Ra8+ Kc7 Rxc6+ dxc6 Rc8+ Kd6 Rxc6+ Ke5 Re6+ Kd4 Re4+ Kc3 Rc4+ Kd2 Rc2+ Ke3 Bc1+ Rd2 Bxd2+ Kd4 Rc4+ Ke5 Re4+ Kd6 Re6+ Kc7 Rc6+ Kb8 Rc8+; 
1K6/6n1/5R2/2p2P2/1bBpk3/3p1pB1/3p1p1r/2nN3N w - - acd 28; bm Bb5; ce 32752; dm 8; dm-claim 9; pv Bb5 Kd5 Nb2 Ke4 Nc4 Kd5 Bxh2 d1=N Ng3 Nxf5 Nxf5 d2 Ng3 f1=Q Rd6+; 
4B1k1/R5pn/1rrPp1Rp/b1Nppn1K/2p5/1p6/pP6/1q3b2 w - - acd 45; bm Bf7+; ce 32724; dm 22; dm-claim 23; pv Bf7+ Kh8 Ra8+ Rb8 Rxb8+ Rc8 Rxc8+ Nf8 Rxf8+ Kh7 Bg8+ Kh8 Bxe6+ Kh7 Bg8+ Kh8 Bxd5+ Kh7 Bg8+ Kh8 Bxc4+ Kh7 Bg8+ Kh8 Bxb3+ Kh7; 
4K3/1p2R1p1/b2k2Pb/1p2pPpN/n2r1N1p/1P6/3P2PB/Q6q w - - acd 32; bm Qxh1; ce 32744; dm 12; dm-claim 13; pv Qxh1 gxf4 Qe1 e4 Nxf4 Kc5 Qg1 Kb4 Qxd4+ Kxb3 Rxe4 b4 Qxb4+ Ka2 Qxa4+ Kb2 Nd3+ Bxd3 Be5+ Kc1 Re1+ Kxd2 Qd1+; 
3N4/2p1pp2/1pPkrRB1/2p3K1/4pNp1/5qQ1/3PbB2/2b5 w - - acd 26; bm Rxe6+; ce 32746; dm 11; dm-claim 12; pv Rxe6+ fxe6 Be8 Qxf4+ Kxf4 Kd5 Qc3 Bxd2+ Qxd2+ Kc4 Qa2+ Kd3 Qb1+ Kc4 Bf7 Bf3 Bxe6+ Kc3 Ke3 b5 Be1+; 
4r1k1/1rn2pbp/2p3p1/6P1/2n1N2P/1p4PR/2NBQPb1/2KBR1q1 w - - acd 29; bm Nf6+; ce 32740; dm 14; dm-claim 15; pv Nf6+ Bxf6 Qxe8+ Nxe8 Rxe8+ Kg7 gxf6+ Kxf6 Bc3+ Ne5 Bxe5+ Kf5 g4+ Ke4 Re3+ Kd5 Rd8+ Rd7 Rxd7+ Ke6 Rd6+ Ke7 Bf4+ Be4; 
5KR1/5Q2/8/6B1/1p1p4/1Pp1p3/1bPpPppr/3R1bkr w - - acd 31; bm Qf6; ce 32738; dm 15; dm-claim 16; pv Qf6 Rh5 Bf4 R1h2 Bxh2+ Rxh2 Qxd4 Rh3 Rh8 Rh1 Rh4 Bc1 Kf7 Bb2 Qg4 Bc1 Rxh1+ Kxh1 Qh4+ Kg1 Ke6 Bb2 Ke5 Ba3 Kf4 Bb2 Kg3 Ba3 Qh2+; 
5nb1/5p2/1BR4p/4k1b1/1pB1ppR1/4p1P1/5P1N/K5n1 w - - acd 64; bm gxf4+; ce 32744; dm 12; dm-claim 13; pv gxf4+ Kf5 fxg5 Ne6 fxe3 h5 Bxe6+ fxe6 Rf4+ Ke5 Rf1 Ne2 Rc5+ Kd6 Rd1+ Ke7 Rc7+ Ke8 Rb7 Nd4 Rxd4 Bf7 Rd8+; 
5nq1/2p2p2/n1P2P2/KP2pP2/2kpPN2/2B5/1P1p2rr/1RN2R1Q w - - acd 65; bm b3+; ce 32742; dm 13; dm-claim 14; pv b3+ Kc5 Nxg2 Rxg2 Bb2 Kd6 Ba3+ Nc5 Bxc5+ Kxc5 Nd3+ Kd6 Nc5 Kxc5 Rfc1+ Kd6 Rc5 Kxc5 Qf1 Re2 Qxe2 d1=R Qc4+ Kd6 Qd5+; 
5b1r/pN2p2P/Rp2BBN1/1K1p1pP1/1p2k2p/1P4p1/2PP2P1/5r2 w - - acd 15; bm Kc6; ce 32754; dm 7; dm-claim 8; pv Kc6 exf6 Bxd5+ Kd4 Nd8 Re1 Nxh4 Re3 Nf3+ Rxf3 Ne6+ Ke5 d4#; 
7k/1b2q1p1/5bp1/2n1NRRr/4N3/r1BB2n1/5KP1/3Q4 w - - acd 21; bm Nxg6+; ce 32748; dm 10; dm-claim 11; pv Nxg6+ Kh7 Nxf6+ gxf6 Nf8+ Qxf8 Rxc5+ Be4 Rc7+ Qg7 Rgxg7+ Kh6 Rh7+ Kg5 Kxg3 Rxh7 Rxh7 Bxh7 Bd2+; 
8/1r3r2/3B1pBp/6Np/6pk/4Np1P/qp5K/1b4R1 w - - acd 66; bm hxg4; ce 32752; dm 8; dm-claim 9; pv hxg4 Qd5 Nxd5 Rb3 Bc5 Bxg6 Nxf7 Bxf7 g5 f2 Bxf2+ Rg3 Rxg3 fxg5 Rg1+; 
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: 11509
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: Hard Puzzles found on Gameknot

Post by Dann Corbit » Tue Jun 23, 2020 7:54 am

Here is the finished gameknot file with analysis:
https://drive.google.com/file/d/1L_ApzW ... sp=sharing
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.

MOBMAT
Posts: 315
Joined: Sat Feb 04, 2017 10:57 pm
Location: USA

Re: Hard Puzzles found on Gameknot

Post by MOBMAT » Wed Sep 16, 2020 2:02 pm

Here is one from your unsolved file.

It has two solutions, neither which is the published move of (d3). Once H6 figured out there were 2 solutions, I started it again with MPV=3 to make sure it wasn't a triple.
Very tough even to find one mate for most engines.

Code: Select all

FEN: 5N2/5p2/BBpNpK2/P2kP3/2p2P2/2p5/2pPbPP1/2r3nn w - - 0 1

Houdini 6 (N6):
 11	00:00	 326,090	2,038,000	 0.00	1.dxc3 Rb1 2.Kxf7 Rxb6 3.Nxe6 Nxf2 4.Nc7+ Kc5 5.Ne6+ Kd5
 11	00:00	 326,090	2,038,000	 0.00	1.Nxe6 fxe6 2.Bc8 Bg4 3.Ba6 Be2
 11	00:00	 326,090	2,038,000	+0.41	1.Kxf7 Rb1 2.Be3 c1Q 3.Ng6 Rb7+ 4.Nxb7 Bh5 5.Bxc4+ Kxc4 6.d3+ Kb5 7.Bxc1 Nxf2
---------------------------------------------------------------------------
 12	00:00	 1,563,644	1,913,000	 0.00	1.Nxe6 fxe6 2.Bc8 Bg4 3.Ba6 Be2
 12	00:00	 1,563,644	1,913,000	+0.79	1.Kxf7 Rb1 2.Be3 c1Q 3.Ng6 Rb7+ 4.Nxb7 Bh5 5.Bxc4+ Kxc4 6.d3+ Kb5 7.Bxc1 Nxf2 8.Kxe6 Bxg6 9.Be3
 12	00:00	 1,563,644	1,913,000	+3.00	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Kxg2 8.Nxe6 Nd1 9.Nf4+ Kxf3 10.Nxd3
---------------------------------------------------------------------------
 13	00:01	 2,465,582	1,961,000	+0.61	1.Kxf7 Rb1 2.Be3 c1Q 3.Ng6 Rb7+ 4.Nxb7 Bh5 5.Bxc4+ Kxc4 6.d3+ Kb5 7.Bxc1 Ne2 8.Nd6+ Ka6 9.g4 Bxg6+ 10.Kxe6 Nxc1
 13	00:01	 2,465,582	1,961,000	+1.92	1.Nxe6 fxe6 2.d3 Bxd3 3.Nb5 Ke4 4.Nxc3+ Kxf4 5.Be3+ Kg4 6.Bxc1 Nxf2 7.Bb7 Ne2 8.Nxe2 Ne4+ 9.Kxe6 Nc5+ 10.Kf6 Nxb7 11.a6
 13	00:01	 2,465,582	1,961,000	+3.08	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Ne2 7.Nxe2+ Bxe2 8.Bb7 Nf2 9.a6
---------------------------------------------------------------------------
 14	00:01	 4,039,354	2,044,000	 0.00	1.Nxe6 fxe6 2.d3 c5 3.Bxc4+ Kc6 4.Bb5+ Kd5 5.Bc4+
 14	00:01	 4,039,354	2,044,000	+0.50	1.Kxf7 Rb1 2.Be3 c5 3.dxc3 Nxf2 4.Bb7+ Rxb7+ 5.Nxb7 Nd1 6.Bd2 Nxc3 7.Nxe6 Bh5+ 8.Ke7 Nge2 9.a6 Nb5 10.Nd6
 14	00:01	 4,039,354	2,044,000	+3.17	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Ne2 7.Nxe2+ Bxe2 8.Bb7 Nf2 9.a6 Nd3 10.Ba3
---------------------------------------------------------------------------
 15	00:03	 6,652,082	2,097,000	 0.00	1.Nxe6 fxe6 2.d3 c5 3.Bxc4+ Kc6 4.Bb5+ Kd5 5.Bc4+
 15	00:03	 6,652,082	2,097,000	+0.86	1.Kxf7 Rb1 2.Be3 c1Q 3.Ng6 Rb7+ 4.Nxb7 Bh5 5.Bxc4+ Kxc4 6.d3+ Kb5 7.Bxc1 Ne2 8.Be3 Nxf4 9.Bxf4 Nxf2 10.a6 Bxg6+ 11.Kxg6
 15	00:03	 6,652,082	2,097,000	+3.42	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Bb7 Nd1 8.Na2 c3 9.Nb4 Nf2 10.a6 Bxa6 11.Bxa6
---------------------------------------------------------------------------
 16	00:04	 9,393,299	2,155,000	+0.30	1.Be3 Nxf2 2.Kxf7 Ng4 3.dxc3 Nxe5+ 4.fxe5 Rf1+ 5.Ke7 c1Q 6.Bxc1 Rxc1 7.Nxe6 Kxe5 8.Bxc4 Bxc4 9.Nxc4+ Ke4 10.Kd7 Rxc3 11.Nd6+ Kd3
 16	00:04	 9,393,299	2,155,000	+0.86	1.Kxf7 Rb1 2.Be3 c1Q 3.Ng6 Rb7+ 4.Nxb7 Bh5 5.Bxc4+ Kxc4 6.d3+ Kb5 7.Bxc1 Ne2 8.Be3 Nxf4 9.Bxf4 Nxf2 10.a6 Bxg6+ 11.Kxg6
 16	00:04	 9,393,299	2,155,000	+3.58	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Kxg2 7.Bb7 Ng3 8.a6 N3e2 9.a7 Nxc1 10.a8Q Nge2 11.Qa3 Nb3 12.Na2
---------------------------------------------------------------------------
 17	00:07	 17,857,274	2,301,000	+0.53	1.Be3 Rb1 2.Kxf7 c1Q 3.Ng6 Rb7+ 4.Nxb7 Bh5 5.Bxc4+ Kxc4 6.d3+ Kb5 7.Nd6+ Ka6 8.Bxc1 Ne2 9.Be3 Nxf2 10.f5 Ng4 11.Nc4
 17	00:07	 17,857,274	2,301,000	+1.85	1.Kxf7 Nh3 2.dxc3 Nxf4 3.Nd7 Rb1 4.Bxc4+ Bxc4 5.Nf6+ Kxe5 6.Nxc4+ Kf5 7.Ne3+ Kg5 8.Ne4+ Kh5 9.Nxc2 Nxg2 10.Kxe6 Rc1 11.Nb4 Kg4 12.Nxc6 Re1 13.Kd5
 17	00:07	 17,857,274	2,301,000	+3.45	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Nd1 8.Na2 Kxg2 9.Nxe6 Nxf3 10.Nf4+ Kf2 11.e6 Ng5+ 12.Kf6 Nxe6 13.Nxe6 Ne3 14.Bb7
---------------------------------------------------------------------------
 18	00:13	 33,099,913	2,447,000	+3.52	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Nd1 8.Na2 Kxg2 9.Nxe6 Ne2 10.Bb7 Ndc3 11.Nxc3 Nxc1 12.a6
 18	00:13	 33,099,913	2,447,000	+8.23	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qxd2 5.Ne4 Qxf4+ 6.Nxf4+ Kd4 7.b7 Bxf3 8.Nxc3 Bxg2 9.b8Q Kxc3 10.e6 Nh3 11.Qe5+ Kb4 12.Nxg2
 18	00:13	 33,099,913	2,447,000	+8.91	1.Kxf7 Rb1 2.f3 Rxb6 3.axb6 c1Q 4.Nxe6 Qxd2 5.Ne4 Qxf4+ 6.Nxf4+ Kd4 7.b7 c2 8.Ne6+ Ke3 9.b8Q Nxf3 10.Qb6+ Kxe4 11.gxf3+ Kxf3 12.Nd4+ Kf2 13.Nxc2+ Kf1 14.Qxc6 Bh5+ 15.Kf6 Ng3 16.Bxc4+ Kf2 17.Qc5+
---------------------------------------------------------------------------
 19	00:16	 42,339,460	2,493,000	+3.56	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Kxg2 8.Nxe6 Nxf3 9.Nf4+ Kf1 10.e6 Ng5+ 11.Kf6 Nxe6 12.Kxe6 Ke1 13.Bb7 Ne4 14.Nxe4
 19	00:16	 42,339,460	2,493,000	+9.87	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 c5 7.Nb3+ Ke3 8.b7 Nxf3 9.gxf3 Bxf3 10.b8Q Kxf4 11.e6 Ng3 12.Ne8+ Kg4 13.Nf6+ Kh3 14.e7
 19	00:16	 42,339,460	2,493,000	+9.87	1.Kxf7 Rb1 2.f3 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Bxf3 7.gxf3 Nf2 8.Nxc2 Nxf3 9.b7 Kxc2 10.b8Q Nh3 11.Qb3+ Kd2 12.Ne4+ Ke3 13.Nxc3 Nxf4 14.Qb6+ Nd4 15.Qb1 c5 16.Qc1+ Kf3 17.Qf1+ Ke3 18.Qg1+ Kd2 19.Ne4+ Kc2 20.Qf2+
---------------------------------------------------------------------------
 20	00:26	 66,009,745	2,517,000	+3.81	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Kxg2 8.Nxe6 Nxf3 9.Nf4+ Kh2 10.e6 Ng5+ 11.Kf6 Nxe6 12.Nxe6 Bh7 13.Bxc4 Bd3 14.Bxd3 Nxd3 15.Na2
 20	00:26	 66,009,745	2,517,000	+10.43	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 c5 7.Nb3+ Ke3 8.b7 Nxf3 9.gxf3 Bxf3 10.b8Q Kxf4 11.e6 Ng3 12.Ne8+ Kg4 13.Nf6+ Kh3 14.e7 Kg2 15.e8Q
 20	00:26	 66,009,745	2,517,000	+11.12	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qxd2 5.Ne4 Qxf4+ 6.Nxf4+ Kd4 7.b7 Bxf3 8.Nxc3 Kxc3 9.b8Q Ne2 10.Nxe2+ Bxe2 11.e6 Bh5+ 12.Kf6 Nf2 13.Qe5+ Kb3 14.Qxh5 Ne4+ 15.Ke5 c3 16.e7 c2 17.Qf7+ Kb2
---------------------------------------------------------------------------
 21	00:37	 97,153,501	2,575,000	+3.69	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Kxg2 8.Nxe6 Nxf3 9.Nf4+ Kf1 10.e6 Ng5+ 11.Kf6 Nxe6 12.Kxe6 Ke1 13.Bb7 Bf1 14.a6 Nd3 15.a7 Nxc1 16.a8Q Kd2
 21	00:37	 97,153,501	2,575,000	+10.68	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Nf2 7.b7 Nxf3 8.gxf3 Bxf3 9.b8Q c1Q 10.Nb3+ Kc2 11.Nxc1 Kxc1 12.Qb6 Ng4 13.e6 Bd5 14.Bxd5
 21	00:37	 97,153,501	2,575,000	+11.23	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Nxf3 5.gxf3 Qb1 6.Ne4 Qxe4 7.fxe4+ Kxe4 8.dxc3 Kd3 9.b7 Bf3 10.b8Q Kxc3 11.Qb6 Bd5 12.Kf6 Kc2 13.Nd4+ Kd3 14.Nxc6 Ke4 15.Qd4+
---------------------------------------------------------------------------
 22	00:57	 149,074,339	2,598,000	+3.95	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Kxg2 7.Bb7 Ng3 8.a6 N3e2 9.Nxe2 Nxe2 10.Ba3 c1B 11.Bxc1 Nxc1 12.a7 c3 13.a8Q c2 14.Qa3 Nb3 15.Qxb3 c1Q 16.Qxd3 Qf4+ 17.Ke7 Qxe5 18.Nd7 Qc7 19.Qc2+
 22	00:57	 149,074,339	2,598,000	+11.17	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Bd1 7.Nb3+ Ke3 8.b7 Nxf3 9.b8Q Nxe5+ 10.fxe5 Kf2 11.Ne4+ Kxg2 12.e6 Bh5+ 13.Kf6 Bf3 14.Qg8+ Kh2 15.Qh7+ Kg2 16.Qg6+ Kh2 17.Nxc3
 22	00:57	 149,074,339	2,598,000	+11.85	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qxd2 5.Ne4 Qxf4+ 6.Nxf4+ Kd4 7.b7 Bxf3 8.Nxc3 Kxc3 9.b8Q Ng3 10.e6 Bxg2 11.Qe5+ Kb3 12.Nxg2 c3 13.Qxg3 Kb2 14.e7 c2 15.Qe5+
---------------------------------------------------------------------------
 23	01:20	 208,012,290	2,600,000	+4.36	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Kxg2 8.Nxe6 Nxf3 9.Nf4+ Kf1 10.e6 Ng5+ 11.Kf6 Nxe6 12.Kxe6 Ke1 13.Bb7 Bf1 14.a6 Nd3 15.a7 Nxc1 16.a8Q Nb3 17.Na2 Nc5+ 18.Kd6 Nd3 19.Qa5+
 23	01:20	 208,012,290	2,600,000	+11.32	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Nf2 7.b7 Bxf3 8.b8Q Bxg2 9.e6 c1Q 10.Nb3+ Kc2 11.Nxc1 Kxc1 12.e7 Ngh3 13.Qb3 Nd1 14.f5 Bd5+ 15.Bxd5
 23	01:20	 208,012,290	2,600,000	+12.15	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Bh5+ 9.Kf6 Kf2 10.b8Q Kxg2 11.f5 Ne2 12.Bxc4 Nf2 13.Ke7 Bg4 14.f6 Nxc3 15.f7 Kg3 16.f8Q
---------------------------------------------------------------------------
 24	01:52	 295,453,026	2,619,000	+4.43	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Nd1 8.Na2 Ne2 9.Nxe6 Kxg2 10.Nf4+ Nxf4 11.Bxf4 Kxf3 12.Bc1 Ne3 13.e6 Nd5 14.Bb7 Nc7 15.e7 Ke4 16.a6 Kd4 17.a7
 24	01:52	 295,453,026	2,619,000	+11.65	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 c5 7.Nb3+ Ke3 8.b7 Ng3 9.b8Q Bxf3 10.e6 Bh5+ 11.Kf6 Kf2 12.e7 Kxg2 13.Nf7 Ne4+ 14.Kg7 Nd2 15.Bd5+ Bf3 16.Bxf3+ Ngxf3 17.e8Q Nd4 18.Qe1 Nf5+
 24	01:52	 295,453,026	2,619,000	+12.52	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Bh5+ 8.Kf6 Ke3 9.b7 Kf2 10.b8Q Kxg2 11.f5 Nh3 12.Ke7 Ng3 13.f6 Nf5+ 14.Kd7 Ne3 15.Qb1 Bg4 16.Qe4+ Kf2 17.Bxc4 Nxc4 18.Qxc4 Be2 19.Qxc6
---------------------------------------------------------------------------
 25	03:31	 550,615,420	2,604,000	+4.47	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Kf2 7.Bb7 Ng3 8.a6 N1e2 9.Nxe2 Nxe2 10.Ba3 c1Q 11.Bxc1 Nxc1 12.a7 c3 13.a8Q Ne2 14.Qa7+ Ke1 15.Qe3 c2 16.Qxd3 c1Q 17.Qe4 Kf2 18.g4 Ng3 19.Qxc6 Qf4+ 20.Ke7 Qxe5 21.Kxf7 Qf4+ 22.Ke8 Qg5 23.Qb6+ Qe3 24.Qxe3+ Kxe3 25.Nxe6 Ne2
 25	03:31	 550,615,420	2,604,000	+12.34	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 c5 7.Nb3+ Ke3 8.b7 Kf2 9.b8Q Kxg2 10.e6 Bxf3 11.e7 Ng3 12.f5 Bh5+ 13.Kf8 Nf3 14.Qb7 Kh2 15.Qd5 Nh4 16.Qxc5 Kg2 17.f6 Ng6+ 18.Kg7 Nxe7 19.fxe7 Kh3
 25	03:31	 550,615,420	2,604,000	+12.64	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Ng3 9.b8Q Bh5+ 10.Kf6 N1e2 11.Qb6+ Kd3 12.Qb4 Ne4+ 13.Ke7 N2xc3 14.Qxc4+ Kd2 15.f5 Bg4 16.Qd3+ Kc1 17.Nd4 Bd1 18.Bb7 c5 19.Bxe4 Nxe4 20.Qe3+ Kb2 21.Qxe4
---------------------------------------------------------------------------
 26	05:20	 844,670,172	2,636,000	+4.64	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Kf2 7.Bb7 Ng3 8.a6 N1e2 9.Nxe2 Nxe2 10.Ba3 c1Q 11.Bxc1 Nxc1 12.a7 c3 13.a8Q Ne2 14.Qa7+ Ke1 15.Qe3 c2 16.Qxd3 c1Q 17.Qe4 Kf2 18.g4 Ng3 19.Qxc6 Qf4+ 20.Ke7 Ke1 21.Qc3+ Kf1 22.Nd7 Ne2 23.Qa1+ Kf2 24.Qb2 Qd4 25.Qxd4+
 26	05:20	 844,670,172	2,636,000	+13.17	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Nf2 7.b7 Bxf3 8.b8Q Bd5+ 9.Bxd5 cxd5 10.Nb3+ Ke1 11.e6 Ne2 12.e7 Nd3 13.e8Q Ndxf4 14.Nf5 Kf2 15.g4 c1Q 16.Nxc1 Kf3 17.g5
 26	05:20	 844,670,172	2,636,000	+13.21	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Bf1 8.b7 Bxg2 9.b8Q Ne2 10.Qd6 Kf3 11.Qxc6+ Kg3 12.Qxc4 Bf3 13.f5 Nf2 14.Ng5 Bg4 15.f6 Nf4 16.Qd4 N2h3 17.Nxh3 Nxh3
---------------------------------------------------------------------------
 27	07:19	1,150,159,397	2,619,000	+4.92	1.d3 Bxd3 2.Nb5 Ke4 3.Nxc3+ Kxf4 4.Be3+ Kg4 5.f3+ Kg3 6.Bxc1 Nf2 7.Kxf7 Nd1 8.Na2 Kxg2 9.Nxe6 Ne2 10.Nf4+ Nxf4 11.Bxf4 Kxf3 12.Bc1 Ne3 13.e6 Nf5 14.Bb7 Nd6+ 15.Ke7 Nxb7 16.a6 Nc5 17.a7 Nxe6 18.Kxe6 Ke2 19.a8Q
 27	07:19	1,150,159,397	2,619,000	+13.45	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Bd1 7.Nb3+ Ke3 8.b7 Kxf4 9.b8Q Nxf3 10.e6 Ne1 11.e7 Kg3 12.Qg8+ Kf2 13.g4 Kg2 14.e8Q Nf3 15.Nf5 Nf2 16.Qe3 Nh3 17.Qe4
 27	07:19	1,150,159,397	2,619,000	+14.08	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Bf1 8.b7 Bxg2 9.b8Q Ne2 10.Qd6 Ke3 11.Qc5+ Kd2 12.Qxc4 Nc1 13.Qb4 Kd1 14.f5 Bd5 15.Ke7 Ng3 16.Qg4+ Kc2 17.Qxg3 Bxe6 18.Kxe6
---------------------------------------------------------------------------
 28	09:44	1,538,059,182	2,632,000	+14.05	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Nf2 7.b7 Bxf3 8.b8Q Bxg2 9.e6 c1Q 10.Nb3+ Kc2 11.Nxc1 Kxc1 12.e7 Nd1 13.Qg8 Bd5+ 14.Bxd5 Ne2 15.Bxc6 c2 16.Qg5 Ndc3 17.e8Q Kd1 18.Bf3 c1R 19.Bxe2+ Kc2 20.Qe3
 28	09:44	1,538,059,182	2,632,000	+14.48	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kf2 9.b8Q Bh5+ 10.Kf6 Kxg2 11.f5 Nh3 12.Bb7 Bf3 13.Ke7 Ng1 14.f6 Ne2 15.f7 Nhg3 16.f8Q Nxc3 17.Nf4+ Kf1 18.Bxc6 Bxc6 19.Qb2 Nd1 20.Nd3+ Kg1 21.Qb6+ Kh2
 28	09:44	1,538,059,182	2,632,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 29	14:09	2,250,191,218	2,647,000	+14.87	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Kd3 8.b7 Bh5+ 9.Kf6 Nf2 10.b8Q Kd2 11.Qb6 Ne4+ 12.Ke7 Ne2 13.Qb2+ Ke3 14.Bxc4 N2g3 15.Qb6+ Kd2 16.Qd4+ Kc1 17.Kd7 Bg4 18.Kxc6 Nd2 19.Nc5 Nxc4 20.Qxc4 Nf5 21.e6 Kd2 22.Ne4+ Kc1 23.Nf6 Bd1 24.Qb4
 29	14:09	2,250,191,218	2,647,000	+14.91	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Bd3 9.b8Q Ne2 10.Qd6 Nhg3 11.Qc5+ Kd2 12.Bxc4 Nf5 13.Qxc6 Bxc4 14.Qxc4 Ne3 15.Qe4 Ng3 16.Qd4+ Ke2 17.Nc5 Ngf5 18.Qd3+ Kf2 19.e6 Kxg2 20.e7 Kf3
 29	14:09	2,250,191,218	2,647,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 30	19:05	3,059,509,337	2,670,000	+14.71	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Ng3 9.b8Q Bh5+ 10.Kf6 Ne4+ 11.Ke7 Kf2 12.Bxc4 Kxg2 13.f5 Nh3 14.f6 Kf3 15.Qb1 Nhf2 16.Qe1 Ng3 17.Qd2 Nf5+ 18.Kd7 Ng3 19.Qf4+ Kg2 20.Qe3 Nh3 21.Qd3 Nf2 22.Nf4+
 30	19:05	3,059,509,337	2,670,000	+15.35	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Kd3 8.b7 Ng3 9.b8Q Kd2 10.Qb6 Bh5+ 11.Kf6 N1e2 12.Bxc4 Ne4+ 13.Ke7 N2g3 14.Qd4+ Kc1 15.Kd7 Bg4 16.Kxc6 Nd2 17.Nc5 Nxc4 18.Qxc4 Bf5 19.e6 Bg6 20.Kd7 Bf5 21.Qd4 Kc2 22.Qf2+ Kxc3 23.Qxg3+ Kc4 24.Qg7
 30	19:05	3,059,509,337	2,670,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 31	26:43	4,272,826,206	2,665,000	+15.78	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Ng3 9.b8Q Bh5+ 10.Kf6 N1e2 11.Qb6+ Kd3 12.Qb4 Ne4+ 13.Ke7 N2xc3 14.Qxc4+ Kd2 15.f5 Bg4 16.Qd3+ Kc1 17.Nd4 Bd1 18.Bb7 Nd5+ 19.Kf8 Nf2 20.Qa3+ Kd2 21.Nxc6 Bg4 22.Qa5+ Nc3 23.e6 Nfe4 24.e7 Bh5 25.Ne5 Ke3 26.g4 Be8 27.Kxe8
 31	26:43	4,272,826,206	2,665,000	+15.95	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kf2 9.b8Q Bh5+ 10.Kf6 Kxg2 11.f5 Nh3 12.Bb7 N1f2 13.Bxc6+ Kf1 14.Nd4 Nd3 15.e6 Nhf4 16.e7 Ke1 17.Nf3+ Kf1 18.Qb1+ Ke2 19.Qc2+ Kf1 20.Qd1+ Kf2 21.Qg1+ Ke2 22.Qh2+ Kf1 23.Kg5 Bf7 24.Ne5 Nxe5
 31	26:43	4,272,826,206	2,665,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 32	31:56	5,117,698,585	2,670,000	+16.17	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kf2 9.b8Q Bh5+ 10.Kf6 Kxg2 11.f5 Nh3 12.Bb7 Kg3 13.Bxc6 N1f2 14.Nd4 Nd3 15.e6+ Nhf4 16.e7 Kf2 17.Nf3 Kg3 18.Qb6 Ng2 19.Qg1 Ndf4 20.Qh2+ Kf2 21.Ng5 Ke2 22.Bxg2 Kd3 23.Bf3 Be8
 32	31:56	5,117,698,585	2,670,000	+16.31	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kf2 9.b8Q Bh5+ 10.Kf6 Ng3 11.Qb2+ N1e2 12.Bxc4 Kg1 13.Bxe2 Bxe2 14.Nd4 Bg4 15.e6 Kf1 16.e7 Bd7 17.Ke5 c5 18.Ne6 Kg1 19.Qb1+ Kh2 20.Qb7 Be8 21.Qc8
 32	31:56	5,117,698,585	2,670,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 33	53:37	8,708,616,136	2,706,000	+17.44	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kf2 9.b8Q Bh5+ 10.Kf6 Kxg2 11.f5 Nh3 12.Bb7 N1f2 13.Bxc6+ Kf1 14.Nd4 Nd3 15.e6 Nhf4 16.e7 Kf2 17.Nf3 Kg3 18.Qb6 Ng2 19.Qg1 Ndf4 20.Qh2+ Kf2 21.Ng5 Ke2 22.Bxg2 Kd3 23.Bf3 Kxc3
 33	53:37	8,708,616,136	2,706,000	+17.78	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Nf2 8.b7 Bh5+ 9.Kf6 Ne2 10.b8Q Kd3 11.Qb4 Ne4+ 12.Ke7 N2xc3 13.Qxc4+ Kd2 14.f5 Nd5+ 15.Kf8 Nec3 16.Nf4 Nxf4 17.Qxf4+ Kc2 18.f6 Kb3 19.Qf5 Bd1 20.e6 Bc2 21.Qc5 Bg6 22.e7 Nd5 23.Qc4+ Kb2 24.Qe2+ Kb3 25.Qf3+ Kb2 26.Qf2+ Kc1 27.f7 Nxe7
 33	53:37	8,708,616,136	2,706,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 34	1:00:41	9,866,371,732	2,709,000	+17.85	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Bd1 7.Nb3+ Ke3 8.b7 Ng3 9.b8Q Kf2 10.Ne4+ Nxe4 11.fxe4 Kxg2 12.e6 Nf3 13.Nc1 Nd2 14.Bd3 Bh5+ 15.Kf6 c5 16.e7 c4 17.Bxc2 Nf1 18.f5 Ng3 19.Ke6 Kh3 20.f6 Bg4+ 21.Kd5 Bh5 22.Qh8 Kg4 23.Bd1+ Kg5 24.Bxh5
 34	1:00:41	9,866,371,732	2,709,000	+18.13	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Ng3 9.b8Q Bh5+ 10.Kf6 N1e2 11.Bxc4 Kf2 12.Qb2 Kg1 13.Bxe2 Bxe2 14.Nd4 Bg4 15.e6 Bh5 16.f5 Kf1 17.e7 c5 18.Nf3 Ne4+ 19.Ke6 Nf2 20.Qc1+ Kxg2 21.Qg5+ Kxf3 22.Qxh5+ Ke3 23.Qg5+ Ke4 24.Qh4+
 34	1:00:41	9,866,371,732	2,709,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 35	3:00:13	29,438,403,448	2,722,000	+20.08	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ng3 8.b7 Bg4 9.b8Q N1e2 10.Qd6 Ke3 11.Qc5+ Kd2 12.Qxc4 Kc1 13.Ng7 Ng1 14.e6 Nf3 15.e7 Nd2 16.Qb4 Bd7 17.Qd4 Bf5 18.Qe3 Bc2 19.Qxg3 Kb2 20.e8Q Ne4 21.Qg6 Nxc3 22.Qgxc6 Bb3+ 23.Kg6
 35	3:00:13	29,438,403,448	2,722,000	+20.61	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Kd3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bd3 12.e6 Ne2 13.e7 Ne4 14.Qxc6 Nc1 15.e8Q Kd1 16.Qe5 Nd2 17.Qa4+ Ncb3 18.f5 Kc1 19.Qa2 Kd1 20.f6 Nf1 21.Qh5+ Kc1 22.Qg5+ Nfd2 23.Qg4 Bb1 24.Qa3+ Kc2 25.Bxc4 Nxc4 26.Qxc4
 35	3:00:13	29,438,403,448	2,722,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 36	3:39:02	35,879,270,354	2,729,000	+20.45	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 c1Q 4.Nxe6 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Kd3 8.b7 Ng3 9.b8Q Bh5+ 10.Kf6 N1e2 11.Qb4 Ke3 12.Qc5+ Kd2 13.Qxc4 Ke1 14.Qxc6 Nc1 15.f5 Bd1 16.Nd4 Kf2 17.e6 Bh5 18.e7 Kg1 19.Ke6 Kh1 20.f6 Bg4+ 21.Kd6 Bh5 22.Bc4 Bg6 23.Ke5 Bh5 24.Nf5 Nce2 25.Ng7 Nxc3 26.Nxh5 Nxh5 27.g4+
 36	3:39:02	35,879,270,354	2,729,000	+21.71	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kf2 9.b8Q Bh5+ 10.Kf6 Kxg2 11.f5 Nh3 12.Bb7 Ng3 13.Bxc6+ Kg1 14.Nd4 Nf2 15.e6 Nge4+ 16.Ke7 Nc5 17.Qg3+ Kf1 18.Qg2+ Ke1 19.Qg1+ Kd2 20.Qxf2+ Kd3 21.Qc2+ Ke3 22.Qc1+ Kd3 23.Nf3 Nb3 24.Ne5+ Ke2 25.Qb2+ Kf1 26.Qb1+ Kf2 27.f6 Ke2 28.Nxc4 Nd2 29.Qb2 Kf2 30.Nxd2
 36	3:39:02	35,879,270,354	2,729,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 37	4:52:17	48,255,270,507	2,751,000	+23.88	1.f3 Rb1 2.Kxf7 Rxb6 3.axb6 Kd4 4.Nxe6+ Kd3 5.Bxc4+ Kxd2 6.Nd4 Bd1 7.Nb3+ Ke3 8.b7 Ng3 9.b8Q Kf2 10.Ne4+ Nxe4 11.fxe4 Ne2 12.e6 Ng3 13.Bd3 Kxg2 14.e7 Bh5+ 15.Kg7 Kf3 16.Bxc2 Ke3 17.f5 Kf2 18.Qf4+ Kg2 19.Qe5 Be8 20.Qxc3 Bh5 21.f6 Nf1 22.Qxc6 Ng3 23.e5+ Kg1 24.Qc5+ Kg2 25.Bg6 Bg4 26.Qc6+ Kh2 27.Qc2+ Kh3 28.e8Q Bf3 29.Qh8+ Kg4
 37	4:52:17	48,255,270,507	2,751,000	+27.16	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Kd3 8.b7 Kd2 9.b8Q Ke1 10.f5 Ng3 11.f6 Bh5+ 12.Ke7 Nf5+ 13.Kf8 Ne3 14.Qb6 c5 15.Qxc5 Nc2 16.Qxg1+ Kd2 17.Nf4 Bd1 18.Qf1 Na3 19.Qf2+ Kc1 20.Ke7 Bb3 21.f7 Nc2 22.Nd5 Kb1 23.e6 Kc1 24.Qf4+ Kb2 25.f8Q Ka3 26.Kf6+ Ka2 27.e7 Kb2 28.e8Q Kb1
 37	4:52:17	48,255,270,507	2,751,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 38	5:58:44	59,515,967,734	2,765,000	+90.96	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Be2 13.e6 Kf1 14.Qxc6 Nd3 15.Kf6 Ke1 16.e7 Nf3 17.e8Q Nd2 18.Qxc4 Nxc4 19.Bxc4 Kd2 20.Qxe2+ Kxe2 21.Bxd3+ Kd2 22.Bf1 Ke3 23.Ke5 Kf2 24.f6 Kxf1 25.f7
 38	5:58:44	59,515,967,734	2,765,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 38	5:58:44	59,515,967,734	2,765,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 39	6:00:09	59,752,470,540	2,765,000	+85.00	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Be2 13.e6 Kf1 14.Qxc6 Nd3 15.Kf6 Ke1 16.e7 Nf3 17.e8Q Nd2 18.Qxc4 Nxc4 19.Bxc4 Kd2 20.Qxe2+ Kxe2 21.Bxd3+ Kd2 22.Bf1
 39	6:00:09	59,752,470,540	2,765,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 39	6:00:09	59,752,470,540	2,765,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 40	6:02:06	60,070,476,496	2,764,000	+85.00	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Be2 13.e6 Kf1 14.Qxc6 Nd3 15.Kf6 Ke1 16.e7 Nf3 17.e8Q Nd2 18.Qxc4 Nxc4 19.Bxc4 Kd2 20.Qxe2+ Kxe2 21.Bxd3+ Kd2 22.Bf1
 40	6:02:06	60,070,476,496	2,764,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 40	6:02:06	60,070,476,496	2,764,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 41	6:05:01	60,548,369,522	2,764,000	+90.00	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Be2 13.e6 Kf1 14.Qxc6 Nd3 15.Kf6 Ke1 16.e7 Nf3 17.e8Q Nd2 18.Qxc4 Nxc4 19.Bxc4 Kd2 20.Qxe2+ Kxe2 21.Bxd3+ Kd2 22.Ke5 Kxd3 23.f6
 41	6:05:01	60,548,369,522	2,764,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 41	6:05:01	60,548,369,522	2,764,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 42	6:08:56	61,183,131,819	2,763,000	+90.00	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Be2 13.e6 Kf1 14.Qxc6 Nd3 15.Kf6 Ke1 16.e7 Nf3 17.e8Q Nd2 18.Qxc4 Nxc4 19.Bxc4 Kd2 20.Qxe2+ Kxe2 21.Bxd3+ Kd2 22.Ke5 Kxd3 23.f6 Kc2
 42	6:08:56	61,183,131,819	2,763,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 42	6:08:56	61,183,131,819	2,763,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 43	6:14:12	62,041,335,018	2,763,000	+90.96	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Be2 13.e6 Kf1 14.Qxc6 Nd3 15.Kf6 Ke1 16.e7 Nf3 17.e8Q Nd2 18.Qxc4 Nxc4 19.Bxc4 Kd2 20.Qxe2+ Kxe2 21.Bxd3+ Kd2 22.Ke5 Kxd3 23.f6 Kc2 24.f7 Kd3 25.f8Q
 43	6:14:12	62,041,335,018	2,763,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 43	6:14:12	62,041,335,018	2,763,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 44	6:30:19	64,688,910,059	2,762,000	+90.92	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Be2 13.e6 Kf1 14.Qxc6 Nd3 15.Kf6 Ke1 16.e7 Nf3 17.e8Q Nfe5 18.Qe4 Kd2 19.Qxe2+ Kxe2 20.Bxc4 Kd2 21.Qxe5 Nb2 22.Qd4+ Kc2 23.Qf2+ Kxc3 24.Qe3+ Kxc4 25.Qb3+ Kc5 26.Qxb2 Kc4 27.Qb6
 44	6:30:19	64,688,910,059	2,762,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 44	6:30:19	64,688,910,059	2,762,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 45	6:40:48	66,375,066,312	2,760,000	+90.96	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Bd1 13.e6 Ne2 14.Bxc4 Ng4 15.Bxe2 Kxe2 16.e7 Ne5+ 17.Ke6 Nd3 18.e8Q c5 19.Kd6+ Kd2 20.f6 Be2 21.Qxe2+ Kxe2 22.Qb5 Kd2 23.Qxd3+ Kxd3 24.Kxc5 Ke4 25.f7 Kd3 26.f8Q Ke3 27.Qf3+
 45	6:40:48	66,375,066,312	2,760,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 45	6:40:48	66,375,066,312	2,760,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+
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 46	6:58:26	69,233,731,394	2,757,000	+90.96	1.Kxf7 Rb1 2.Nxe6 Rxb6 3.axb6 c1Q 4.f3 Qb1 5.Ne4 Qxe4 6.fxe4+ Kxe4 7.dxc3 Ke3 8.b7 Kd2 9.b8Q Nf2 10.Qb6 Ke1 11.Ng7 Bg4 12.f5 Bd1 13.e6 Ne2 14.Bxc4 Ng4 15.Bxe2 Kxe2 16.e7 Ne5+ 17.Ke6 Nd3 18.e8Q c5 19.Kd6+ Kd2 20.f6 Be2 21.Qxe2+ Kxe2 22.Qb5 Kd2 23.Qxd3+ Kxd3 24.Kxc5 Ke4 25.f7 Kd3 26.f8Q Ke3 27.Qf3+
 46	6:58:26	69,233,731,394	2,757,000	+M11	1.Ng6 fxg6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Ra1 11.Bc4+
 46	6:58:26	69,233,731,394	2,757,000	+M11	1.Nxe6 fxe6 2.Bc8 Bg4 3.f5 Bxf5 4.Ba6 Bd3 5.Nb5 Ke4 6.Be3 Be2 7.Nd6+ Kd5 8.Bc8 Bg4 9.d3 cxd3 10.Ba6 Be2 11.Bc4+

i7-6700K @ 4.00Ghz (using 6 threads), EGTBs on PCI SSD
Benchmark: Stockfish 11 64 bmi2 (nps): 2067669

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