Test Position: Nikolic Fischer revisited 19...Bg4!!

[MikeB]

Analysis on Intel E5-2680v2 (10 core)

Nikolic,E - Fischer,R 0-1, Vinkovci 1968

[d]r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - 0 19

Houdini 6.03 Pro x64-popc

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Houdini 6.03 Pro x64-popc

 44/96+	41:42:33	2.693.780.205.059	17.940.000	+0,65	19. ... Bg4
...
 44/96	51:44:33	3.367.134.885.790	18.076.000	+0,84	19. ... Bg4 20.Qb1 Nf3+ 21.Bxf3 Bxf3 22.a6 Bxf4 23.exf4 Ng4+ 24.Kg1 Nh6 25.Kh2 bxa6 26.bxc6 Qxc6 27.Qa2 Ng4+ 28.Kg1 Nf6 29.Kh2 Qd7 30.Qxa6 Qf5 31.Qa2 a5 32.Rb7 a4 33.Be3 Ng4+ 34.Kg1 Nh6 35.Kh2 Red8 36.Rfb1 Ng4+ 37.Kg1 Nf6 38.Kh2 a3 39.h4 Ng4+ 40.Kg1 Nxe3 41.fxe3 Qh3 42.Qh2 Qxh2+ 43.Kxh2 a2 44.Ra1 Ra3 45.Nxa2 Rxe3 46.Rb2 Ra8 47.Rc1 Rd3 48.c6 Rxd4
 45/106	69:07:32	4.548.657.438.620	18.278.000	+1,09	19. ... Bg4 20.Qb1 Nf3+ 21.Bxf3 Bxf3 22.a6 Bxf4 23.exf4 Ng4+ 24.Kg1 Nh6 25.Kh2 bxa6 26.bxc6 Qxc6 27.Qa2 Ng4+ 28.Kg1 Nf6 29.Kh2 Qd7 30.Qxa6 Qf5 31.Qa2 a5 32.Rb7 a4 33.Be3 a3 34.h4 Reb8 35.Rb6 Rxb6 36.cxb6 Rb8 37.Rb1 Qe6 38.b7 Qa6 39.Kg1 Rxb7 40.Rxb7 Qxb7 41.Qxa3 Qc8 42.f5 Qxf5 43.Bh6 Nd7 44.Kh2 Be2 45.Kg1 Bc4 46.Qc1 Qe6 47.Bg5 Nf6 48.Bxf6 Qxf6

Komodo 13.1 64-bit

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Komodo 13.1 64-bit

 60+	65:03:53	3.045.368.762.997	13.001.446	+0,56	19. ... Bg4 20.Qb1 Nf3+
...
 60	77:14:33	3.624.495.226.724	13.034.284	+1,21	19. ... Bg4 20.Qb1 Nf3+ 21.Bxf3 Bxf3 22.a6 Bxf4 23.exf4 Ng4+ 24.Kg1 Nh6 25.Kh2 bxa6 26.bxc6 Qxc6 27.Qa2 Ng4+ 28.Kg1 Nf6 29.Kh2 Qd7 30.h4 Qf5 31.Qb1 Ng4+ 32.Kg1 Nh6 33.Kh2 a5 34.Bc1 Rad8 35.Nb5 Ng4+ 36.Kg1 Ne5 37.Kh2 Nc4 38.Nd6 Nxd6 39.cxd6 Rxd6 40.Rb8 Rdd8 41.Rxd8 Rxd8 42.Qb5 Qd7 43.Qxa5 Rc8 44.Be3 Be2 45.Re1 Rc2 46.f5 Qxf5 47.Qxa7 Bg4 48.Qb8+ Kh7 49.Qf4 Qxf4 50.gxf4 Kg7
 61	135:42:49	6.420.375.867.570	13.141.178	+1,24	19. ... Bg4 20.Qb1 Nf3+ 21.Bxf3 Bxf3 22.a6 Ng4+ 23.Kg1 Bxf4 24.exf4 Nh6 25.Kh2 bxa6 26.bxc6 Qxc6 27.Qa2 Ng4+ 28.Kg1 Nf6 29.Kh2 Qd7 30.h4 Qf5 31.Qb1 a5 32.Bc1 Ng4+ 33.Kg1 Rad8 34.Nb5 Ne5 35.Kh2 Nc4 36.Nd6 Nxd6 37.cxd6 Rxd6 38.Be3 Rc8 39.Ra2 Rb6 40.Qe1 Ra6 41.Qa1 Qd7 42.Rxa5 Rxa5 43.Qxa5 Be2 44.Re1 Rc2 45.f5 Qxf5 46.Qxa7 Bg4 47.Qb8+ Kh7 48.Kg1 Rc8 49.Qf4 Qxf4 50.Bxf4 Rc4

Honey-X5i . 12 Cores

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dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 53	+1.04!	63.8G	47:55.43	Bg4! 
 53	+0.84!	55.5G	41:53.78	Bg4! 
 53	+0.70!	52.6G	39:37.26	Bg4! 
 53	+0.60!	48.8G	36:53.42	Bg4! 
 53	+0.52!	44.4G	33:43.73	Bg4! 
 52	+0.45 	34.9G	26:46.60	a6 bxc6 bxc6 Na4 Ra7 Nb6 Qc7 Kg1 Qd8 Bc1 Kg7 Bd2 Rh8 Re1 Qe7 Bc1 Qc7 Bd2 Re8 Bb4 Ne6 Bc3 Qe7 Bd2 Rh8 Bc3 Nc7 Rb3 Re8 Kh2 Kg8 Bb2 Ne6 Kg1 Ng5 Rf1 Qc7 Qe2 Nfh7 Qd1 Qd8 Kh2 Nf6 Qe2 Qe7 Qd1 Qc7 Kg1 Ne6 Bc1 Rd8 Bd2 Bxf4 gxf4 g5 fxg5 
 51	+0.45 	32.0G	24:33.63	a6 bxc6 bxc6 Na4 Ra7 Nb6 Qc7 Kg1 Qd8 Bc1 Kg7 Bd2 Rh8 Re1 Qe7 Bc1 Qc7 Bd2 Re8 Bb4 Ne6 Kh1 Rb8 Kg1 Rh8 Bc3 Qe7 Na4 Re8 Kh1 Nc7 Kh2 Nb5 Bb4 Qc7 Kg1 Qd7 Nb6 Qe7 Rb3 Nc7 Bf1 Ne6 Kh2 Nh7 Be2 Kg8 Nxe6 Bxe6 Kg2 Bg7 Bd2 h4 g4 Ng5 
 50	+0.45 	25.8G	19:56.88	a6 bxc6 bxc6 Na4 Ra7 Nb6 Qc7 Kg1 Qd8 Bc1 Kg7 Bd2 Rh8 Re1 Qe7 Bc1 Qc7 Bd2 Kg8 Na4 Kh7 Rf1 Kg7 Re1 Rd8 Nb6 Qe7 Kh2 Rh8 Kg1 Ne6 Rb4 Nc7 Kh2 Nh7 Na4 Nb5 Rb2 Re8 Nc3 Kg8 Nxb5 axb5 Qe2 Bg7 Ra1 Qd8 Be1 Ng5 Qd1 Ra6 Bb4 Nh7 
 49	+0.45 	24.6G	19:02.29	a6 bxc6 bxc6 Na4 Ra7 Nb6 Qc7 Kg1 Qd8 Bc1 Kg7 Bd2 Rh8 Re1 Qe7 Bc1 Qc7 Bd2 Kg8 Na4 Kh7 Rf1 Kg7 Re1 Rd8 Nb6 Qe7 Kh2 Rh8 Kg1 Ne6 Rb4 Nc7 Kh2 Nh7 Na4 Nb5 Rb2 Ng5 Nc3 Qd7 Nxb5 axb5 Rb3 Re8 Qe2 Qd8 Qd1 Kg8 Qe2 Qe7 Ra1 Bg7 Rb2 Ra6 
 48	+0.45 	22.9G	17:42.68	a6 bxc6 bxc6 Na4 Ra7 Nb6 Qc7 Kg1 Qd8 Bc1 Kg7 Bd2 Rh8 Re1 Qe7 Bc1 Qc7 Bd2 Kg8 Na4 Kh7 Rf1 Kg7 Re1 Ne6 Bc1 Re8 Bd2 Qd7 Nb6 Qe7 Rb4 Ng5 Rb2 Rd8 Kh2 Rh8 Kg1 Ne6 Rb4 Nc7 Kh2 Nh7 Na4 Ng5 Rb6 Qd7 Nc3 Nb5 Rf1 Na3 Rb4 Nb5 Na4 Qd8 Nb6 Re 
 47	+0.41!	22.1G	17:08.62	a6! 
 47	+0.31?	20.6G	15:57.52	a6 bxc6? 
 47	+0.45!	15.9G	12:23.88	a6! 

[Dann Corbit]

That is a very interesting result and somewhat convincing