SF-McBrain 4.0 Release

[MikeB]

Thanks Micheal B.

At the risk of being accused of stagnating modern-compiles and general computer progress etc ....

The 64-bit Mc-Brain 4.0 "generic" compile from Monge doesn't work here. As soon as I click on the generic 64-bit, I get an error message: xxx--engine has stopped working. Same for Stanback's and all of IP's SF-McBrain-4.0sm-Final & SF-Mc-Brain-4.0-Final compiles - all his 32-bits inclusive. I'm not exactly sure if his 32-bits might be mistakenly mixed.

My OS system: Windows 7 64-bit. Intel Q6700 Quad. HP Pavilion Elite. Yep, some of "us" still exists with this outdated processors

Sorry for any inconveniences. Thanks in advance for any accommodation relative to compatible compiles.


EN

I have done another new 64 generic compilation (using original Makefile of stockfish), if you want to test the link is: https://drive.google.com/open?id=1Zax13 ... 8HAwjZ1Uqj

The 32-bit version is tested on a dinosaur, AMD Turion 64 X2 Mobile, running Windows XP 32-bit, and works well.

Thanks Lucas!

[Jouni]

BTW Vincent L. You wrote in fishcooking, that SF can't solve this position. Are You sure? 19.12. version solves in 1-2 minutes.

[D]8/6pp/1K6/N5P1/3N4/8/npn1P3/k7 w - - 0 1

Analysis by Stockfish 191217 64 BMI2:

1.Nab3+
= (0.12 ++) Depth: 39/58 00:01:29 841mN, tb=7490948
1.Nab3+
= (0.19 ++) Depth: 39/58 00:01:29 845mN, tb=7535186
1.Nab3+
= (0.30 ++) Depth: 39/58 00:01:29 846mN, tb=7539010
1.Nab3+
+/= (0.46 ++) Depth: 39/58 00:01:29 846mN, tb=7541538
1.Nab3+
+/= (0.68 ++) Depth: 39/58 00:01:30 849mN, tb=7553615
1.Nab3+
+/- (0.97 ++) Depth: 39/58 00:01:30 850mN, tb=7563369
1.Nab3+
+/- (1.35 ++) Depth: 39/58 00:01:30 851mN, tb=7575192
1.Nab3+
+- (1.85 ++) Depth: 39/58 00:01:31 860mN, tb=7628908
1.Nab3+
+- (2.50 ++) Depth: 39/58 00:01:33 878mN, tb=7761909
1.Nab3+
+- (3.32 ++) Depth: 39/58 00:01:33 881mN, tb=7786916
1.Nab3+
+- (4.37 ++) Depth: 39/58 00:01:34 886mN, tb=7856901
1.Nab3+
+- (5.71 ++) Depth: 39/58 00:01:34 892mN, tb=7939046
1.Nab3+
+- (7.40 ++) Depth: 39/58 00:01:36 909mN, tb=8182150
1.Nab3+
+- (9.52 ++) Depth: 39/58 00:01:37 921mN, tb=8375855
1.Nab3+
+- (12.20 ++) Depth: 39/58 00:01:39 937mN, tb=8619684
1.Nab3+
+- (15.57 ++) Depth: 39/58 00:01:40 950mN, tb=8834675
1.Nab3+
+- (19.80 ++) Depth: 39/58 00:01:41 959mN, tb=8981747
1.Nab3+
+- (25.10 ++) Depth: 39/58 00:01:41 966mN, tb=9115308
1.Nab3+
+- (31.75 ++) Depth: 39/58 00:01:42 969mN, tb=9167203
1.Nab3+
+- (40.09 ++) Depth: 39/58 00:01:42 971mN, tb=9209259
1.Nab3+
+- (50.52 ++) Depth: 39/58 00:01:42 972mN, tb=9222585
1.Nab3+
+- (69.37 ++) Depth: 39/58 00:01:42 978mN, tb=9313149
1.Nab3+
+- (132.52 ++) Depth: 39/58 00:01:43 981mN, tb=9349057
1.Nab3+ Kb1 2.Nb5 h6 3.gxh6 gxh6 4.e4 h5 5.e5 h4 6.e6 h3 7.e7 h2 8.e8Q h1Q 9.Qg6 Qa8 10.Qg1+ Ne1 11.Qg8 Kc2 12.Qxa8 b1Q 13.Na3+ Kd3 14.Nxb1 Nb4 15.Nd4 Ke3 16.Qe8+ Kf4 17.Qxe1 Nd3 18.Qd2+ Ke4 19.Qe2+ Kd5 20.Qxd3
+- (132.63) Depth: 39/58 00:01:43 988mN, tb=9465023
1.Nab3+ Kb1 2.Nb5 h6 3.gxh6 gxh6 4.e4 h5 5.e5 h4 6.e6 h3 7.e7 h2 8.e8Q h1Q 9.Qg6 Qa8 10.Qg1+ Ne1 11.Qg8 Kc2 12.Qxa8 b1Q 13.Na3+ Kd3 14.Nxb1 Nb4 15.Nc5+ Ke2 16.Qe4+ Kf2 17.Qxb4 Ng2 18.Ne4+ Ke3 19.Qc3+ Kxe4
+- (132.63) Depth: 40/40 00:01:44 998mN, tb=9641889
1.Nab3+ Kb1 2.Nb5 h6 3.gxh6 gxh6 4.e4 h5 5.e5 h4 6.e6 h3 7.e7 h2 8.e8Q h1Q 9.Qg6 Qa8 10.Qg1+ Ne1 11.Qg8 Kc2 12.Qxa8 b1Q 13.Na3+ Kd3 14.Nxb1 Nb4 15.Qe8 Nd5+ 16.Kc5 Ne3 17.Nc1+ Kc2 18.Qxe3 Ng2 19.Qd2+ Kxb1
+- (132.63) Depth: 41/39 00:01:45 1004mN, tb=9744798

And for mate you need - matefinder

Analysis by Stockfish MateFinder 64 BMI2:

1.Nab3+ Kb1 2.Nb5 h5 3.gxh6 gxh6 4.e4 h5 5.e5 h4 6.e6 h3 7.e7 h2 8.e8Q h1Q 9.Qg6 Qa8 10.Kc7 Qa4 11.Qg1+ Ne1 12.Qxe1+ Kc2 13.N3d4+ Qxd4 14.Nxd4+ Kd3 15.Nf3 Nc3 16.Qd2+ Kc4 17.Qxb2 Nb5+ 18.Kb6 Nc3 19.Kc6 Kd3 20.Qd2+ Ke4 21.Qxc3 Kf5 22.Kd6 Kg6 23.Nh4+ Kf7 24.Qg3 Kf8 25.Ke6 Ke8 26.Qg8#
+- (#26) Depth: 43/54 00:00:21 201mN, tb=2577021

[Vinvin]

BTW Vincent L. You wrote in fishcooking, that SF can't solve this position. Are You sure? 19.12. version solves in 1-2 minutes.

[D]8/6pp/1K6/N5P1/3N4/8/npn1P3/k7 w - - 0 1

Analysis by Stockfish 191217 64 BMI2:

1.Nab3+
= (0.12 ++) Depth: 39/58 00:01:29 841mN, tb=7490948

Are you sure ?
It didn't find it for the last 4-5 years.
I just tested the Abrok compile and no solution after 5 billions nodes in depth 46 ...

Code: Select all

Stockfish_17122610_x64_modern:
...
 45/85	04:38	 3 820 335k	13 737k	+3,78	1.Nxc2+ Kb1 2.Na3+ Kc1 3.e4 Nb4 4.Kc5 Nd3+ 5.Kd6 Nf2 6.Nb3+ Kd1 7.Nc5 Nh3 8.g6 h5 9.e5 Nf4 10.e6 Nxg6 11.Nd3 h4 12.Nf4 h3 13.Nxh3 Nh4 14.Nf4 Nf5+ 15.Ke5 Ne7 16.Kd4 Nf5+ 17.Ke4 Nd6+ 18.Kd3 g5 19.Ne2 Ke1 20.Nc3 g4 21.Nc4 Ne8 22.Ke4 g3 23.Kf3 b1Q 24.Nxb1 g2 25.Kxg2 Ke2 26.e7 Kd3 27.Nbd2 Kd4 28.Nb6 Ke5 29.Ndc4+ Kf6 30.Nc8 Ke6 31.Kg3 Kf7 32.Kf3 Ke6 33.Kg4 Kf6 34.Kf4 Ke6 35.N4b6 Nc7
 46/85+	05:10	 4 306 375k	13 852k	+3,86	1.Nxc2+
 46/85+	05:13	 4 335 736k	13 851k	+3,93	1.Nxc2+
 46/85+	05:17	 4 391 432k	13 846k	+4,05	1.Nxc2+
 46/85	05:37	 4 673 692k	13 862k	+4,08	1.Nxc2+ Kb1 2.Na3+ Kc1 3.e4 Nb4 4.Kc5 Nd3+ 5.Kd6 Nf2 6.Nb3+ Kd1 7.Nc5 Nh3 8.g6 h5 9.e5 Nf4 10.e6 Nxg6 11.Nd3 h4 12.Nf4 h3 13.Nxh3 Nh4 14.Nf4 Nf5+ 15.Ke5 Ne7 16.Kd4 Nf5+ 17.Ke4 Nd6+ 18.Kd3 g5 19.Ne2 Ke1 20.Nc3 g4 21.Nc4 Ne8 22.Ke4 g3 23.Kf3 b1Q 24.Nxb1 g2 25.Kxg2 Ke2 26.e7 Kd3 27.Nbd2 Kd4 28.Nb6 Ke5 29.Ndc4+ Kf6 30.Nc8 Ke6 31.Kg3 Kf7 32.Kf3 Ke6 33.Kg4 Kf6 34.Kh4 Kf7 35.Kg3 Ke6 36.Kf4 Kf6 37.Kg4 Ke6 38.Kg5 Kd7 39.N4b6+ Ke6 40.Kg6 Nd6 41.Nd5 Ne8 42.Nf4+ Kd7

Houdini 1.5 (7 years old) finds it after 12 seconds :

Code: Select all

Houdini_15_x64:
...
 22/62	00:11	 179 306k	15 093k	+0,25	1.Nxc2+ Kb1 2.Na3+ Kc1 3.e4 Nb4 4.Kc5 Nd3+ 5.Kd6 Nf4 6.e5 h6 7.g6 Nxg6 8.e6 h5 9.N5c4 h4 10.Ne5 Nxe5 11.Kxe5 h3 12.e7 b1Q 13.Nxb1 h2 14.e8Q h1Q 15.Nc3 Qh2+ 16.Kd5 Qd2+ 17.Kc4 g5 18.Qe4 Qc2 19.Qe1+ Kb2 20.Kd4 g4 21.Nd1+ Ka2 22.Qe6+ Qb3 23.Nc3+ Kb2 24.Qe2+ Ka3 25.Qg2 Qb6+ 26.Ke5 Qe3+ 27.Ne4
 22/62+	00:12	 195 001k	15 104k	+0,49	1.Nab3+
 22/62+	00:15	 233 716k	15 202k	+4,64	1.Nab3+
 22/70	00:17	 274 767k	15 556k	+10,22	1.Nab3+ Kb1 2.Nb5 h5 3.gxh6 gxh6 4.e4 h5 5.e5 h4 6.e6 h3 7.e7 h2 8.e8Q h1Q 9.Qg6 Qa8 10.Qg1+ Ne1 11.Qg8 Kc2 12.Qxa8 b1Q 13.Na3+ Kxb3 14.Nxb1 Kb2 15.Kb5 Nc1 16.Nd2 Ncd3 17.Ne4 Nf3 18.Qa5 Kb1 19.Qc3 Nde1 20.Nd2+ Nxd2 21.Qxd2 Nc2 22.Kc5 Na3 23.Qb4+ Ka2 24.Qc3 Nb1 25.Qc4+ Ka1 26.Qb3 Nd2 27.Qc3+ Ka2 28.Qxd2+ Kb3 29.Qd3+ Kb2 30.Qd2+ Kb3 31.Qd3+

[Paloma]

[d]r3rnk1/1bq1bpp1/pp2p3/3pP2Q/P4p2/1NNB1R2/1PP4P/2KR4 w - - 0 1
setting tactical 3

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 29	+2.48 	3.13G	2:34.14	Rg1 f5 Rxg7+ Kxg7 Rh3 Ng6 Bxf5 exf5 Qh7+ Kf8 e6 Bd6 Qxg6 Be5 Rh5 Qg7 Rh8+ Ke7 Rh7 Rg8 Rxg7+ Rxg7 Qxf5 Rg1+ Kd2 Kd6 Ne2 Rg2 Kd3 Rh8 Nbd4 Rgxh2 Nxf4 R2h4 Nf3 Bxf4 Nxh4 Rxh4 Qf8+ Kxe6 Qe8+ Kf5 Qf7+ Kg4 Qxb7 Rh1 Qxa6 Rh2 Qc8+ Kf3 Kd 
 28	+2.26 	2.36G	1:55.48	Rg1 f5 Rxg7+ Kxg7 Rh3 Ng6 Bxf5 exf5 Qh7+ Kf8 e6 Bd6 Qxg6 Be5 Rh5 Bg7 Nd4 Bxd4 Rxf5+ Ke7 Rf7+ Kd6 Rxc7 Kxc7 Qf7+ Kd6 Qd7+ Ke5 Qg7+ Kxe6 Qxd4 Bc6 Qxb6 Rac8 Ne2 Rf8 Nd4+ Kd7 Nf3 Rfe8 b3 Re3 Ng5 Re2 h4 Rc7 Qd4 Kc8 Kd1 
 27	+2.12 	1.77G	1:26.19	Rg1 f5 Rxg7+ Kxg7 Rh3 Ng6 Bxf5 exf5 Qh7+ Kf8 e6 Bd6 Qxg6 Be5 Rh5 Bg7 Nd4 Bxd4 Rxf5+ Ke7 Rf7+ Kd6 Rxc7 Kxc7 Qf7+ Kd6 Qd7+ Ke5 Qg7+ Kxe6 Qxd4 Bc6 Qxb6 Rac8 Ne2 Rf8 Nd4+ Kd7 Nf3 Rfe8 b3 Re3 Ng5 Rc7 Qd4 
 26	+1.81 	1.21G	0:59.24	Rg1 f5 Rxg7+ Kxg7 Rh3 Ng6 Bxf5 exf5 Qh7+ Kf8 e6 Bd6 Qxg6 Be5 Rh5 Bg7 Nd4 Bxd4 Rxf5+ Ke7 Rf7+ Kd6 Rxc7 Kxc7 Qf7+ Kd6 Qd7+ Ke5 Qg7+ Kxe6 Qxd4 Kf5 Qxb6 d4 Qc5+ Kg6 Qd6+ Kh5 Nd1 Be4 Nf2 Bg6 Nh3 Re1+ Kd2 
 25	+1.93 	801.0M	0:39.35	Rh3 f5 Re1 f3 Nd1 Bb4 Nd4 f2 Ree3 Re7 c3 Bc5 Kb1 g6 Qh8+ Kf7 Qf6+ Ke8 Rh8 Rf7 Nxe6 Rxf6 Nxc7+ Kd7 Nxa8 Re6 Reh3 Bxa8 Bxa6 Ke8 b4 Be7 Nxf2 Rxe5 R3h7 Bc6 b5 Ba8 Nd3 Re4 a5 bxa5 Rxf8+ Kxf8 Rh8+ Kf7 
 24	+1.91 	554.5M	0:27.06	Rh3 f5 Re1 f3 Nd1 Bb4 c3 Re7 Nd4 f2 Ree3 Bc5 Kb1 g6 Qh8+ Kf7 Qf6+ Ke8 Rh8 Rf7 Nxe6 Rxf6 Nxc7+ Kd7 Nxa8 Re6 Reh3 Bxa8 Bxa6 Rxe5 Nxf2 Bd6 Bb5+ Bc6 Nd3 Re4 Rg8 Bxb5 axb5 Ke6 Rg7 Be7 
 23	+1.98 	310.7M	0:15.21	Rh3 f5 Re1 Bc5 Nxc5 bxc5 Be2 d4 Rg1 Qxe5 Qh8+ Kf7 Bh5+ Ke7 Rxg7+ Kd6 Bxe8 Rxe8 Rxb7 Qxh8 Rxh8 dxc3 bxc3 Re7 Rb6+ Kc7 a5 Nd7 Rxa6 Rg7 Kd2 Rg2+ Ke1 Rxc2 Rxe6 Rxc3 Rh7 c4 a6 Ra3 
 22	+1.81 	180.2M	0:08.78	Rh3 f5 Re1 f3 Qh8+ Kf7 Rg3 g6 Reg1 Reb8 Nd4 f2 Rxg6 Ke8 Nxe6 Kd7 Nxc7 Nxg6 e6+ Kc6 Qd4 fxg1=Q+ Qxg1 Kxc7 Qg3+ f4 Qxg6 Rg8 Qf7 Rae8 Qxf4+ Bd6 Qd4 Rxe6 Nxd5+ Kb8 Nxb6 Bxh2 Kb1 Ka7 Nd7+ Ka8 
 21	+1.72 	81.9M  	0:03.94	Rh3 f5 Re1 f3 Qh8+ Kf7 Rg3 g6 Reg1 Reb8 Nd4 f2 Rxg6 Ke8 Nxe6 Kd7 Nxc7 Nxg6 e6+ Kc6 Qd4 fxg1=Q+ Qxg1 Kxc7 Qg3+ f4 Qxg6 Rg8 Qf7 Rae8 Qxf4+ Bd6 Qd4 Rxe6 Nxd5+ Bxd5 Qxd5 Rg1+ Kd2 Rge1 h4 Bc5 
 20	+1.55 	66.4M  	0:03.18	Rh3 f5 Re1 Bc5 Nd1 Re7 Be2 g6 Qh8+ Kf7 Qf6+ Ke8 Rh8 Kd7 Rxf8 Rxf8 Qxf8 g5 Qh6 d4 Qxg5 f3 Bd3 Bb4 Rf1 Qxe5 Qh4 Bd6 Nxd4 Qxh2 Qxh2 Bxh2 Nxf3 Bf4+ Kb1 Re8 Nd4 Bg5 c3 Rh8 Rg1 Bf6 Ne3 Rh4 Nec2 

It seems that 1.Rh3 is very close:

Analysis by Houdini 6.02 Pro x64-pext:
1. +- (2.29): 1.Rg1 f5 2.Rxg7+ Kxg7 3.Rh3 Ng6 4.Bxf5 exf5 5.Qh7+ Kf8 6.e6 Bd6 7.Qxg6 Be5 8.Rh5 Qg7 ...
2. +- (2.28): 1.Rh3 f5 2.Re1 f3 3.Qh8+ Kf7 4.Rg3 g6 5.Reg1 Rec8 6.Nd4 f2 7.Rxg6 Ke8 8.Rf1 Kd7 9.Rg7 Qc5 ...

4 cores @ 3.7 GHz, 8 Gb Hash, depth 41
(corrgame Gaprindashvili vs Grigoryev, 2005)
.

[Jouni]

Obviously SF solves 1.Nab3+ only with tablebases! Also Houdini and Komodo solves it after 1-2 minutes.

[Vinvin]

Obviously SF solves 1.Nab3+ only with tablebases! Also Houdini and Komodo solves it after 1-2 minutes.

I always test it with tablebases and I never saw it solves it.
Please retry several times.

[MikeGL]

Obviously SF solves 1.Nab3+ only with tablebases! Also Houdini and Komodo solves it after 1-2 minutes.

I always test it with tablebases and I never saw it solves it.
Please retry several times.

Hi Vincent,

I tried just now with my slow 32-bit machine.
Plays correctly Nab3+ then Nb5 with a +10.00 in just 2 seconds
Cleared hash on each run. Gets it correctly 8 times out of 8 in
less than 2 seconds.

SF dev ver. 17122610
MultiPV==2
Hash 256MB
Windows OS
TB/Syzygy: Off
Cores: 2 @ 2 GHz

Maybe the MultiPV is a kind of cheating, but it gets 1.Nab3+ in less than 2 seconds.
Would also try with McBrain ver 4.0, later


Edit: oops forgot the "Thank you" line.
Thanks for this version 4.0 Mike!

[jdart]

What is the difference between:

SF-McBrain-v40_Windows_Monge.zip

and

SF-McBrain-v40_Windows_Stanback.zip

?

--Jon

[Eelco de Groot]

Obviously SF solves 1.Nab3+ only with tablebases! Also Houdini and Komodo solves it after 1-2 minutes.

Why would Sf need tablebases for this? Stockfish with Enhanced Verification Search added to codebase 2017-12-17 does not seem to solve it on one thread, 512 Mb hashtables. No Syzygy. The same version without Enhanced Verification Search also did not solve it but I only tried it for three minutes. Are you guys sure this a Null move problem.

[D]8/6pp/1K6/N5P1/3N4/8/npn1P3/k7 w - -

Engine: Sf20171217 EHS (Enhanced Verification Search) (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott

22/46 0:02 +1.11 1.Nxc2+ Kb1 2.Na3+ Kc1 3.e4 Nb4
4.Kc5 Nd3+ 5.Kd6 h5 6.gxh6 gxh6
7.Nb3+ Kd1 8.Nc5 Nxc5 9.Kxc5 h5
10.e5 h4 11.e6 h3 12.e7 h2 13.e8Q h1Q
14.Qa4+ (3.514.729) 1726

23/55 0:02 +1.18 1.Nxc2+ Kb1 2.Na3+ Kc1 3.e4 Nb4
4.Kc5 Nd3+ 5.Kd6 h5 6.gxh6 gxh6
7.Nb3+ Kd1 8.Nc5 Nxc5 9.Kxc5 h5
10.e5 h4 11.e6 h3 12.e7 h2 13.e8Q h1Q
14.Qa4+ (4.263.289) 1737
.
.
.

43/83 9:42 +2.57-- 1.Nxc2+ Kb1 (1.017.277.271) 1747

43/83 10:03 +2.95++ 1.Nxc2+ (1.054.643.820) 1748

43/83 10:46 +3.25 1.Nxc2+ Kb1 2.Na3+ Kc1 3.e4 Nb4
4.Kc5 Nd3+ 5.Kd6 Nf2 6.Nb3+ Kd1
7.Nc5 Nh3 8.g6 h5 9.e5 Nf4 10.e6 Nxg6
11.Nd3 h4 12.Nf4 h3 13.Nxh3 Nh4
14.Nf4 (1.130.865.573) 1748

[F. Bluemers]

I gave Dirty a try,no endgame bases,single thread,no multipv

Code: Select all

27	+6.70 	194.0M	1:23.09	Nab3+ Kb1 Nb5 h5 gxh6 gxh6 e4 h5 e5 h4 e6 h3 e7 h2 e8=Q h1=Q Qg6 Qa8 Kc7 Qf8 Qg1+ Ne1 Qxe1+ Nc1 Qe4+ Nd3 Qxd3+ Ka2 Nd2 Qf4+ Kc6 Qh6+ Kd7 Qg7+ Ke6
 26	+6.66 	161.4M	1:09.69	Nab3+ Kb1 Nb5 h5 gxh6 gxh6 e4 h5 e5 h4 e6 h3 e7 h2 e8=Q h1=Q Qg6 Qa8 Kc7 Qf8 Qg1+ Ne1 Qxe1+ Nc1 Qe4+ Nd3 Qxd3+ Ka2 Nd2 Qf4+ Kc6 Qh6+ Kc5
 26	+6.66 	146.1M	1:02.71	Nab3+ Kb1 Nb5 h5 gxh6 gxh6 e4 h5 e5 h4 e6 h3 e7 h2 e8=Q h1=Q Qg6 Qa8 Kc7 Qf8 Qg1+ Ne1 Qxe1+ Nc1 Qe4+ Nd3 Qxd3+ Ka2 Nd2 Qf4+ Kc6 Qh6+ Kc5
 26	+3.71!	104.2M	0:58.97	Nab3+!
 26	+2.46 	100.1M	0:43.61	Nxc2+ Kb1 Na3+ Kc1 e4 Nc3 e5 Nd5+ Kc5 Nf4 Nb3+ Kd1 Kd4 h6 gxh6 gxh6 Ke3 Nd5+ Kf3 Nc7 Kg4 Ne6 Kf5
 25	+2.62 	61.8M  	0:26.52	Nxc2+ Kb1 Na3+ Kc1 e4 Nc3 e5 Nd5+ Kc5 Nf4 Nb3+ Kd1 Kd4 h6 gxh6 gxh6 Ke3 Nd5+ Kf3 h5 e6 h4 Nc5 h3 Kg3 Ke2 Nb1 Kd1 Kxh3 Ke2
 25	+2.62 	49.3M  	0:21.36	Nxc2+ Kb1 Na3+ Kc1 e4 Nc3 e5 Nd5+ Kc5 Nf4 Nb3+ Kd1 Kd4 h6 gxh6 gxh6 Ke3 Nd5+ Kf3 h5 e6 h4 Nc5 h3 Kg3 Ke2 Nb1 Kd1 Kxh3 Ke2
 24	+2.67 	36.2M  	0:15.60	Nxc2+ Kb1 Na3+ Kc1 e4 Nc3 e5 Nd5+ Kc5 Nf4 Nb3+ Kd1 Kd4 h6 gxh6 gxh6 Ke3 Nd5+ Kf3 h5 e6 h4 Kf2 h3 Kg3 Ke2 Nc5 h2 Kxh2
 24	+2.67 	29.3M  	0:12.74	Nxc2+ Kb1 Na3+ Kc1 e4 Nc3 e5 Nd5+ Kc5 Nf4 Nb3+ Kd1 Kd4 h6 gxh6 gxh6 Ke3 Nd5+ Kf3 h5 e6 h4 Kf2 h3 Kg3 Ke2 Nc5 h2 Kxh2
 23	+2.70 	21.4M  	0:09.31	Nxc2+ Kb1 Na3+ Kc1 e4 Nc3 

Compiled with null move disabled:

Code: Select all

 23	+5.59 	46.5M  	0:22.55	Nab3+ Kb1 Nb5 h5 gxh6 gxh6 e4 h5 e5 h4 e6 h3 e7 h2 e8=Q h1=Q Qg6 Qa8 Qg1+ Ne1 Qxe1+ Nc1 Nc3+ Kc2 Nd4+ Kd3 Nc6 Ne2
 23	+5.59 	43.1M  	0:20.77	Nab3+ Kb1 Nb5 h5 gxh6 gxh6 e4 h5 e5 h4 e6 h3 e7 h2 e8=Q h1=Q Qg6 Qa8 Qg1+ Ne1 Qxe1+ Nc1 Nc3+ Kc2 Nd4+ Kd3 Nc6 Ne2
 23	+3.67!	30.3M  	0:17.02	Nab3+!

Best
Fonzy