Does any engine find the best move here...

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MikeB
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Does any engine find the best move here...

Post by MikeB »

[d]r3r1k1/1b1nbp1p/1qn1p3/1p1pPp2/p2P4/P2BNN2/1P1Q1BPP/R4RK1 w - - 2 19

Clearly white has the initiative, but there is one move the that stands far above the rest.

Might be an excellent position for Lc0 on fast hardware...

As I was typing this (McCain X4) - really not sure of this is a good search or no - found after a 6B node search :

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 37	+78.20 	6.93G	5:26.05	Ng4 Rf8 Nh6+ Kh8 Rae1 b4 g4 f4 Bb1 bxa3 bxa3 Ba6 Qc2 f5 exf6 Nxf6 Rxe6 Qb3 Rfe1 Rac8 Rxc6 Qxc2 Rxc2 Bxa3 Rxc8 Bxc8 g5 Ng8 Nxg8 Kxg8 Ba2 Rd8 Kg2 Kg7 Rb1 Bf5 Rb7+ Kf8 Ne5 Be4+ Kg1 Be7 Nd7+ Rxd7 Rxd7 Ke8 Rc7 Bxg5 
 37	+75.14!	6.55G	5:08.32	Ng4! 
 37	+71.70!	6.36G	4:59.34	Ng4! 
 37	+68.89!	6.28G	4:55.73	Ng4! 
 37	+66.66!	6.25G	4:54.35	Ng4! 
 37	+64.96!	6.19G	4:51.30	Ng4! 
 37	+63.71!	6.08G	4:46.07	Ng4! 
 36	+62.45 	3.98G	3:06.86	Kh1 Kh8 Nxf5 exf5 Bxf5 Nf8 Qh6 Ra6 Be3 Bc8 Bxc8 Rxc8 Ng5 Nxe5 Qxb6 Rxb6 dxe5 Bc5 Nxf7+ Kg7 Rac1 Rbc6 Bd2 Ng6 h4 h5 Rcd1 d4 Bg5 Re8 Nd8 Rc8 Nb7 Nxe5 Nxc5 Rxc5 Rxd4 Ng4 Bd2 Re6 Bc3 Kg6 Rd8 Nh6 Kh2 Ng4+ Kh3 Re3+ Rf3 Nf2+ Kh2 Ng4+  
 35	+62.95 	3.35G	2:37.11	Kh1 b4 g4 bxa3 bxa3 Ncxe5 Nxe5 Nxe5 dxe5 Bg5 Ng2 Bxd2 Bxb6 fxg4 Bd4 Rec8 Bxh7+ Kxh7 Rxf7+ Kg6 Rxb7 Rc1+ Rxc1 Bxc1 Rc7 Bg5 Kg1 Rb8 Ra7 Rb3 Rxa4 Kf5 Bf2 Kxe5 Rxg4 Kf5 Rg3 Rb1+ Ne1 e5 Rd3 d4 Kg2 Rb2 Rf3+ Ke4 Kh3 Ra2 Rg3 Kf5 Nf3 Rx 
 35	+64.62!	3.10G	2:25.66	Kh1! 
 35	+63.37!	2.97G	2:18.96	Kh1! 
 34	+62.10 	2.79G	2:10.59	Kh1 Kh8 Nxd5 exd5 Bxf5 Nf8 Qh6 Ra6 Be3 Bc8 Bxc8 Rxc8 Ng5 Nxe5 Qxb6 Rxb6 dxe5 Rg6 Nxf7+ Kg7 Rad1 Bc5 Rc1 Rgc6 Bd2 Ng6 h4 h5 Rcd1 d4 Bg5 Re8 Nd8 Rc8 Nb7 Nxe5 Nxc5 Rxc5 Rxd4 Ng4 Bd2 Re6 Bc3 Kg6 Rd8 Nf6 Kh2 Rc4 Kh3 Rg4 Rxf6+ Rxf6 B 
 34	+62.60?	2.60G	2:01.72	Kh1 Kh8? 
 34	+64.36!	2.54G	1:59.06	Kh1! 
 34	+63.56?	2.28G	1:46.54	Kh1 Kh8? 
 34	+64.17?	2.25G	1:45.18	Kh1 Kh8? 
 33	+64.77 	2.03G	1:34.95	Kh1 Kh8 Nxf5 exf5 Bxf5 Nf8 Qh6 Ra6 Be3 Bc8 Bxc8 Rxc8 Ng5 Nd8 e6 Kg8 exf7+ Nxf7 Nxf7 Qxh6 Nxh6+ Kh8 Rf5 Re6 Ng4 Nd7 Rxd5 Nf6 Re5 Rxe5 Nxe5 Kg7 Rc1 Rxc1+ Bxc1 Bd6 Bh6+ Kg8 Bf4 Bxe5 dxe5 Ne4 Be3 Kf7 g4 Ke6 Kg2 Kxe5 Kf3 Kd5 h4 Nd6  
 32	+64.20 	1.67G	1:18.36	Kh1 Kh8 Nxf5 exf5 Bxf5 Nf8 Qh6 Ra6 Be3 Bc8 Bxc8 Rxc8 Ng5 Nxe5 Qxb6 Rxb6 dxe5 Rg6 Nxf7+ Kg7 Rad1 Bc5 Bg1 Bxg1 Kxg1 Rc2 g3 Rc5 Nd6 Kg8 Rc1 Rxc1 Rxc1 d4 Rd1 Re6 Nxb5 Rxe5 Nxd4 Rd5 
 32	+63.71!	1.60G	1:15.13	Kh1! 
 31	+62.45 	1.43G	1:07.26	Kh1 Kh8 Nxf5 exf5 Bxf5 Nf8 Qh6 Ra6 Be3 Bc8 Bxc8 Rxc8 Ng5 Nxe5 Qxb6 Rxb6 dxe5 Bc5 Nxf7+ Kg7 Bd2 d4 Rac1 Rbc6 h4 Be7 Bh6+ Kg8 Rcd1 Rg6 h5 Rg4 Bd2 Rh4+ Kg1 Rxh5 Nh6+ Kh8 Nf5 Ng6 e6 Kg8 Nh6+ Kh8 Rf7 Rf8 Rdf1 Rxf7 
 31	+62.10!	1.37G	1:04.20	Kh1! 
 31	+60.46?	1.26G	0:59.41	Kh1 Kh8? 
 31	+62.02!	1.22G	0:57.42	Kh1! 
 31	+61.09?	1.15G	0:53.97	Kh1 Kh8? 
 30	+61.71 	1.11G	0:52.07	Kh1 Kh8 Nxf5 exf5 Bxf5 Nf8 Qh6 Ra6 Qh5 Bc8 Bd3 Nd8 Be3 Qb7 Nh4 b4 axb4 Bd7 Nf5 Bxf5 Rxf5 Bxb4 Bxa6 Qxa6 Qd1 Be7 Kg1 Qc6 Rxa4 Nfe6 Rh5 Ng7 Rh6 Qd7 Rh3 h5 Bh6 Nde6 Bxg7+ Kxg7 Ra6 Nf4 Rg3+ Kf8 
 30	+63.44!	1.09G	0:51.17	Kh1! 
 30	+60.62?	998.4M	0:46.95	Kh1 Kh8? 
 30	+62.91!	960.0M	0:45.10	Kh1! 
 30	+62.02?	921.5M	0:43.26	Kh1 Kh8? 
 30	+62.99?	904.1M	0:42.45	Kh1 Kh8? 
 30	+63.60?	897.8M	0:42.15	Kh1 Kh8? 
 29	+64.20 	779.5M	0:36.55	Kh1 b4 g4 Ncxe5 Nxe5 Nxe5 dxe5 bxa3 bxa3 Bg5 Ng2 Bxd2 Bxb6 Bc3 Rac1 Rac8 gxf5 Bxe5 fxe6 fxe6 Bc5 d4 Kg1 Rc7 Rfe1 Bg7 Bb4 Rf7 Rf1 Rxf1+ Rxf1 e5 Nh4 Bd5 Nf5 e4 Be2 Kh8 Nd6 Re5 Nf7+ Bxf7 Rxf7 
 28	+64.36 	573.1M	0:26.78	Kh1 b4 g4 Ncxe5 Nxe5 Nxe5 dxe5 bxa3 bxa3 Bg5 Ng2 Bxd2 Bxb6 Bc3 Rac1 Rac8 gxf5 Bxe5 fxe6 fxe6 Bc5 Rc7 Rce1 Bc3 Bd6 Rc6 Rb1 Ba6 Bxa6 Rxa6 Bg3 e5 Rb7 Rae6 Rf5 d4 Rff7 
 28	+63.25!	530.5M	0:24.80	Kh1! 
 28	+61.32!	514.8M	0:24.11	Kh1! 
 28	+59.91!	500.2M	0:23.42	Kh1! 
 28	+58.91!	489.2M	0:22.91	Kh1! 
 27	+57.91 	393.5M	0:18.30	Kh1 Qa5 Nxf5 Qxd2 Nxe7+ Nxe7 Nxd2 Ba6 Bh4 Ng6 Be1 Reb8 Rc1 Rc8 Rxc8+ Rxc8 h4 Ndxe5 dxe5 Nxe5 Bb1 b4 Rg1 Nd3 axb4 Nxb2 Nf3 a3 Bd2 Bc4 Kh2 a2 Bc2 Ra8 Ra1 Nd3 Bc3 Bb5 
 27	+58.16!	388.5M	0:18.07	Kh1! 
 27	+57.27!	371.1M	0:17.27	Kh1! 
 26	+56.38 	352.7M	0:16.42	Kh1 Qa5 Nxf5 Qxd2 Nxe7+ Nxe7 Nxd2 Ba6 b4 Nb6 Bh4 Nc4 Ra2 Rac8 Bg5 Nc6 Rf4 Nxd2 Rxd2 Nxd4 Rd1 Nf5 Bxf5 exf5 Rxf5 Rc3 Bf6 Rxa3 Rh5 Rc3 
 26	+61.87!	336.3M	0:15.64	Kh1! 
 26	+58.83!	297.9M	0:13.83	Kh1! 
 26	+56.50!	282.3M	0:13.08	Kh1! 
 26	+54.76!	194.8M	0:08.95	Bxf5! 
 26	+54.06?	168.7M	0:07.76	Bxf5 exf5? 
 26	+54.72?	163.0M	0:07.50	Bxf5 exf5? 
 25	+55.37 	142.5M	0:06.58	Bxf5 exf5 Nxf5 Kh8 Ng5 Bxg5 Qxg5 Rg8 Qh5 Rae8 Nd6 Nd8 Nxe8 Rxe8 Rac1 b4 axb4 Ba6 Rfd1 Rg8 Bh4 Bc4 Bxd8 Rxd8 Rc3 Rg8 Qf5 Qg6 Qxg6 Rxg6 Ra3 Bb5 Rf3 Kg7 Kf2 
 25	+53.16?	141.9M	0:06.56	Bxf5 exf5? 
 25	+55.49!	131.3M	0:06.07	Bxf5! 
 25	+54.64?	115.9M	0:05.38	Bxf5 exf5? 
 25	+55.65?	91.9M  	0:04.28	Bxf5 exf5? 
 25	+56.30?	82.4M  	0:03.85	Bxf5 exf5? 
 24	+56.95 	67.3M  	0:03.17	Bxf5 exf5 Nxf5 Kh8 Ng5 Bxg5 Qxg5 Rg8 Qh5 Raf8 Nd6 f5 Rae1 Na5 Nf7+ Rxf7 Qxf7 Qg6 Qxg6 hxg6 g4 Nc6 Bg3 Kg7 gxf5 Nxd4 f6+ Kf7 Rf4 Ne6 Rh4 Rd8 Rh7+ Kg8 Re7 Ndc5 
 24	+57.79!	64.5M  	0:03.04	Bxf5! 
 23	+56.02 	56.9M  	0:02.71	Bxf5 exf5 Nxf5 Kh8 Ng5 Bxg5 Qxg5 Rg8 Qh5 Raf8 Nd6 f5 Rae1 Na5 Nf7+ Rxf7 Qxf7 Qg6 Qxg6 hxg6 Bh4 g5 e6 Nb6 e7 Bc6 Bxg5 Rxg5 Re6 Rg8 h3 Kg7 Rxf5 Nbc4 g4 
 22	+54.68 	49.4M  	0:02.38	Bxf5 exf5 Nxf5 Kh8 Ng5 Bxg5 Qxg5 Rg8 Qh5 Rae8 Rae1 Nd8 Bh4 Qg6 Qxg6 Rxg6 Bxd8 Rxd8 Nd6 Rb8 Rxf7 Bc6 Rc1 Rb6 
 21	+54.80 	43.7M  	0:02.12	Bxf5 exf5 Nxf5 Kh8 Ng5 Bxg5 Qxg5 Rg8 Qh5 Rae8 Nd6 Nd8 Nxe8 Rxe8 Rae1 Rg8 Qh4 Qg6 Bg3 Bc6 Qe7 Qd3 Kh1 Qg6 Rf2 Qg4 
 20	+56.83 	38.4M  	0:01.88	Bxf5 exf5 Nxf5 Kh8 Ng5 Bxg5 Qxg5 Rg8 Qh5 Raf8 Nd6 Rg6 Rae1 f5 Nxf5 b4 Be3 Ba6 Nh4 Rxf1+ Rxf1 Ncxe5 Nxg6+ Qxg6 Qxg6 Nxg6 Rf7 
 19	+54.72 	28.6M  	0:01.40	Bxf5 exf5 Nxf5 Kh8 Ng5 Nd8 Bh4 Bxg5 Qxg5 Rg8 Qe3 Nc6 Nd6 Qxd4 Qxd4 Nxd4 Nxb7 Rg4 g3 Kg8 Rad1 Ra6 h3 Re4 Nd6 Rxe5 Nxf7 
 18	+54.02 	17.1M  	0:00.84	Bxf5 exf5 Nxf5 Kh8 Ng5 Bxg5 Qxg5 Rg8 Qh5 Nd8 Bg3 Rg6 Rf2 Ne6 Raf1 Rf8 Nd6 Qxd4 Nxb7 Rg5 Qd1 Nxe5 Qxd4 Nxd4 
 17	+56.63 	9.15M  	0:00.44	Bxf5 exf5 Nxf5 Kh8 Qh6 Rg8 Be3 Rg6 Qh5 Rag8 Kh1 Bd8 N3h4 Bxh4 Nxh4 Nd8 Rf5 Qe6 Raf1 R6g7 R1f3 
 16	+55.37 	6.81M  	0:00.32	Bxf5 exf5 Nxf5 Kh8 Qh6 Rg8 Qh5 Rg6 Nxe7 Nxe7 Ng5 Rxg5 Qxg5 Re8 Qf4 f6 Bh4 f5 Bxe7 Rxe7 
 15	+52.67 	4.27M  	0:00.20	Nxf5 exf5 Bxf5 Nf8 Qh6 Bc8 Bc2 Ng6 Be3 Be6 Rf2 Rec8 Ng5 Bxg5 Qxg5 Na5 Raf1 
 14	+52.47 	3.59M  	0:00.17	Nxd5 exd5 Bxf5 Nf8 Qh6 Bc8 Bc2 Ng6 Be3 b4 axb4 Ba6 Rf2 Nxb4 Ng5 Bxg5 Qxg5 Nxc2 Rxc2 
 13	+51.97 	2.71M  	0:00.13	Nxf5 exf5 Bxf5 Bc8 Qh6 Nf8 Bc2 Ng6 Be3 Bd7 Rf2 b4 Ng5 Bxg5 Qxg5 Nxd4 
 12	+50.74 	1.17M  	0:00.06	Nc2 Nf8 Qh6 b4 Nxb4 Nxb4 axb4 Qxb4 Rfb1 Ng6 Be2 Ba6 Bxa6 Rxa6 Ng5 Bxg5 Qxg5 Qb6 
 11	+53.20 	372066	0:00.02	Nc2 Nf8 Qh6 b4 axb4 Nxb4 Nxb4 Qxb4 Qh5 Qb3 Rad1 Ba6 Bxa6 Rxa6 Ng5 Bxg5 Qxg5+ Ng6 
 10	+53.16 	310368	0:00.02	Nc2 Nf8 Qh6 b4 axb4 Nxb4 Nxb4 Qxb4 Qh5 Ba6 Bxa6 Rxa6 Ng5 Bxg5 
  9	+53.49 	158482	0:00.01	Nc2 Na5 Qh6 Nc4 Rab1 Nf8 b3 axb3 Rxb3 
  8	+56.67 	59491  	0:00.00	Bxf5 exf5 Nxf5 Kh8 Qf4 Rf8 Rfc1 b4 Ng5 
  7	+66.04 	24648  	0:00.00	Bxf5 Nxd4 Nxd4 exf5 Nexf5 Nxe5 Bg3 
  6	+71.97 	9507    	0:00.00	Bxf5 
  5	+56.63 	5250    	0:00.00	Bxf5 b4 Bb1 bxa3 
  4	+54.15 	3542    	0:00.00	Bxf5 b4 Bb1 b3 
  3	+53.33 	1940    	0:00.00	Bxf5 exf5 Nxf5 
  2	+49.75 	1059    	0:00.00	Nc2 b4 
  1	+49.01 	458      	0:00.00	Nc2 
  1	Found 1511 tablebases
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Max
Posts: 247
Joined: Tue Apr 13, 2010 10:41 am

Re: Does any engine find the best move here...

Post by Max »

How did you get these high scores?

Stockfish 10 at depth 27 shows only +1.xx:
Hope we're not just the biological boot loader for digital super intelligence. Unfortunately, that is increasingly probable - Elon Musk
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sandro Necchi
Posts: 150
Joined: Thu Mar 09, 2006 11:18 pm

Re: Does any engine find the best move here...

Post by sandro Necchi »

Hi,

Yes, Kh1 is winning, but the best is Ng4 which my engine Ratassada 10.43X finds in 1.16 minutes on my PC.

1 + 4.31 Ng4 Kh8 2. Nh6 Rg8 3. Nxf7 Kg7 4. Nh6 Kh8 etc...

Best regards,

Sandro
Sandro Necchi
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Does any engine find the best move here...

Post by zullil »

Max wrote: ↑Thu Jun 27, 2019 10:34 am How did you get these high scores?

Stockfish 10 at depth 27 shows only +1.xx:
He has modified the evaluation to give an approximate (percentage) probability of a win. So his engine's scores range from 0 to 100.
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
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Full name: Louis Zulli

Re: Does any engine find the best move here...

Post by zullil »

MikeB wrote: ↑Thu Jun 27, 2019 9:14 am [d]r3r1k1/1b1nbp1p/1qn1p3/1p1pPp2/p2P4/P2BNN2/1P1Q1BPP/R4RK1 w - - 2 19

Clearly white has the initiative, but there is one move the that stands far above the rest.
Cfish-dev:

+2.97 19. Ng4 Kh8 20. Nh6 Rf8 21. Rae1 b4 22. g4 bxa3 23. bxa3 f4 24. Qxf4 Ba6 25. Bxa6 Qxa6 26. Bh4 Bxh4 27. Nxh4 Nd8 28. Ng2 Rc8 29. g5 Qd3 30. Rf3 Qc2 31. Qh4 Rc3 32. Ne3 Qe4 33. Rf4 Qxe3+ 34. Rxe3 Rxe3 35. Rf1 Rxa3 36. Ng4 (depth 33, 0:01:27)
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Max
Posts: 247
Joined: Tue Apr 13, 2010 10:41 am

Re: Does any engine find the best move here...

Post by Max »

zullil wrote: ↑Thu Jun 27, 2019 12:09 pm
Max wrote: ↑Thu Jun 27, 2019 10:34 am How did you get these high scores?

Stockfish 10 at depth 27 shows only +1.xx:
He has modified the evaluation to give an approximate (percentage) probability of a win. So his engine's scores range from 0 to 100.
Thanks Louis, I didn't know.
Hope we're not just the biological boot loader for digital super intelligence. Unfortunately, that is increasingly probable - Elon Musk
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AdminX
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Re: Does any engine find the best move here...

Post by AdminX »

LC0 running on weak Laptop GPU (MX150) for 5 minutes ID: LD2 (128x10.T17.6-swa-20000)

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"Good decisions come from experience, and experience comes from bad decisions."
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AdminX
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Re: Does any engine find the best move here...

Post by AdminX »

Repeating on 2x1060 GPU's after 5 minutes. ID: JH.T8.610

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"Good decisions come from experience, and experience comes from bad decisions."
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AdminX
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Re: Does any engine find the best move here...

Post by AdminX »

AdminX wrote: ↑Thu Jun 27, 2019 1:59 pm Repeating on 2x1060 GPU's after 5 minutes. ID: JH.T8.610

Image
Finally, after a longer think.

Image
"Good decisions come from experience, and experience comes from bad decisions."
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chrisw
Posts: 4313
Joined: Tue Apr 03, 2012 4:28 pm

Re: Does any engine find the best move here...

Post by chrisw »

AdminX wrote: ↑Thu Jun 27, 2019 2:49 pm
AdminX wrote: ↑Thu Jun 27, 2019 1:59 pm Repeating on 2x1060 GPU's after 5 minutes. ID: JH.T8.610

Image
Finally, after a longer think.

Image
that’s a nice graphic
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