Drawn ending, Stockfish evaluates -+ ?

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

User avatar
Ponti
Posts: 493
Joined: Wed Mar 15, 2006 6:13 am
Location: Curitiba - PR - BRAZIL

Drawn ending, Stockfish evaluates -+ ?

Post by Ponti »

Isn't this a draw ?
Ponti - DGT Centaur (intermediate level)

[d]8/4k3/b2p1p2/2pPpPp1/1pP1B1Pp/1P1P3P/2K5/8 w - - 0 42
A. Ponti
AMD Ryzen 1800x, Windows 10.
FIDE current ratings: standard 1913, rapid 1931
User avatar
Guenther
Posts: 4605
Joined: Wed Oct 01, 2008 6:33 am
Location: Regensburg, Germany
Full name: Guenther Simon

Re: Drawn ending, Stockfish evaluates -+ ?

Post by Guenther »

Ponti wrote: Fri Jan 03, 2020 4:47 am Isn't this a draw ?
Ponti - DGT Centaur (intermediate level)

[d]8/4k3/b2p1p2/2pPpPp1/1pP1B1Pp/1P1P3P/2K5/8 w - - 0 42
No idea what you are doing? You provided zero infos, no version, no analysis, just your word that 'SF' 'evaluates' '-+'.
Ofc already the first version I tried only shows draw as expected (at least after 0.07s with 1 thread on a slow pc until infinity)...

Code: Select all

 79	  0.00 	119.2M	0:39.54	c2d2 a6b7 d2e3 b7c8 e3d2 c8d7 d2e2 e7d8 e2e3 d8c7 e4f3 c7c8 f3g2 c8b7 g2h1 b7b6 h1f3 d7e8 f3e4 e8f7 e4f3
 78	  0.00 	104.5M	0:35.29	c2d2 a6b7 d2e3 b7c8 e3d2 c8d7 d2e2 e7d8 e2e3 d8c7 e4f3 c7c8 f3g2 c8b7 g2h1 b7b6 h1f3 b6c7 f3e4 d7e8 e4f3
 77	  0.00 	93.5M  	0:32.40	c2d2 a6b7 d2e3 b7c8 e3d2 c8d7 d2e2 e7d8 e2e3 d8c7 e4f3 c7c8 f3g2 c8b7 g2h1 b7b6 h1f3 d7e8 f3g2 b6a5 e3d2 e8d7 g2f3 a5b6
 76	  0.00 	85.7M  	0:30.50	c2d2 a6b7 d2e3 b7c8 e3d2
 75	  0.00 	55.1M  	0:15.45	c2d2 a6b7 d2e3 b7c8 e3d2
 74	  0.00 	52.8M  	0:14.87	c2d2 a6b7 d2e3 b7c8 e3d2
 73	  0.00 	47.7M  	0:13.40	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 72	  0.00 	45.7M  	0:12.86	c2d2 a6b7 d2e3 b7c8 e3d2
 71	  0.00 	42.6M  	0:11.83	c2d2 a6b7 d2e3 b7c8 e3d2
 70	  0.00 	38.1M  	0:10.55	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2 e8d8 d2e3
 69	  0.00 	36.5M  	0:10.16	c2d2 a6b7 d2e3 b7c8 e3d2
 68	  0.00 	24.6M  	0:06.53	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2
 67	  0.00 	22.4M  	0:05.99	c2d2 a6b7 d2e3 b7c8 e3d2
 66	  0.00 	22.2M  	0:05.94	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2 e8d8 d2e3 d7e8 e4f3 d8c7 f3e4 c7b6 e4f3 b6a5 f3e2 e8d7 e2f3 d7c8 f3g2 c8b7 g2e4 a5b6 e4f3 b6a6 f3h1 a6a7 h1f3
 65	  0.00 	19.6M  	0:05.30	c2d2 a6b7 d2e3 b7c8 e3d2
 64	  0.00 	16.0M  	0:04.19	c2d2 a6b7 d2e3 b7c8 e3d2
 63	  0.00 	15.5M  	0:04.02	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 62	  0.00 	15.0M  	0:03.88	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 61	  0.00 	11.8M  	0:02.99	c2d2 a6b7 d2e3 b7c8 e3d2
 60	  0.00 	11.5M  	0:02.93	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2
 59	  0.00 	11.3M  	0:02.88	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 58	  0.00 	9.11M  	0:02.30	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2
 57	  0.00 	8.17M  	0:02.06	c2d2 a6b7 d2e3 b7c8 e3d2
 56	  0.00 	6.66M  	0:01.69	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2 e8d8 d2e3
 55	  0.00 	5.41M  	0:01.38	c2d2 a6b7 d2e3 b7c8 e3d2
 54	  0.00 	5.27M  	0:01.35	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 53	  0.00 	4.61M  	0:01.18	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2
 52	  0.00 	3.90M  	0:01.00	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2
 51	  0.00 	3.59M  	0:00.92	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 50	  0.00 	2.97M  	0:00.77	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 49	  0.00 	2.89M  	0:00.75	c2d2 a6b7 d2e3 b7c8 e3d2
 48	  0.00 	2.68M  	0:00.70	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e3d2
 47	  0.00 	2.52M  	0:00.65	c2d2 a6b7 d2e3 b7c8 e3d2
 46	  0.00 	1.88M  	0:00.49	c2d2 a6b7 d2e3 b7c8 e3d2
 45	  0.00 	1.73M  	0:00.46	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 44	  0.00 	1.35M  	0:00.36	c2d2 a6b7 d2e3 b7c8 e3d2
 43	  0.00 	1.28M  	0:00.34	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 c8d7 e3d2
 42	  0.00 	1.12M  	0:00.30	c2d2 a6b7 d2e3 b7c8 e3d2
 41	  0.00 	1.10M  	0:00.30	c2d2 a6b7 d2e3 b7c8 e3d2
 40	  0.00 	959646	0:00.26	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4f3 c8d7 f3e4
 39	  0.00 	854622	0:00.23	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 38	  0.00 	751213	0:00.21	c2d2 a6b7 d2e3 b7c8 e3d2
 37	  0.00 	682312	0:00.19	c2d2 a6b7 d2e3 b7c8 e3d2
 36	  0.00 	640378	0:00.17	c2d2 a6b7 d2e3 b7c8 e3d2
 35	  0.00 	582626	0:00.16	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4f3 c8d7 f3e4 d7e8 e4g2 d8c7 g2e4
 34	  0.00 	536214	0:00.15	c2d2 a6b7 d2e3 b7c8 e3d2
 33	  0.00 	501294	0:00.14	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 32	  0.00 	459366	0:00.13	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 31	  0.00 	429208	0:00.12	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4f3 c8d7 f3e4
 30	  0.00 	410820	0:00.11	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4f3 c8d7 f3e4 d7e8 e4g2 d8d7 g2e4 d7e7 e4f3 e7d8
 29	  0.00 	394320	0:00.11	c2d2 a6b7 d2e3 b7c8 e3d2
 28	  0.00 	354550	0:00.10	c2d2 a6b7 d2e3 b7c8 e3d2
 27	  0.00 	344211	0:00.10	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 26	  0.00 	332962	0:00.09	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 25	  0.00 	325682	0:00.09	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4f3 c8d7 f3e4 d8c7 e4f3
 24	  0.00 	316880	0:00.09	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3
 23	  0.00 	293773	0:00.08	c2d2 a6b7 d2e3 b7c8 e3d2
 22	  0.00 	284480	0:00.08	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4f3 c8d7 f3e4
 21	  0.00 	282597	0:00.08	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4f3 c8b7 e3d2 d8d7 d2e3 d7c7 f3h1 b7a6 h1e4 a6c8 e4f3
 20	 -0.01 	249341	0:00.07	c2d2 a6b7 d2e3 b7c8 e3d2 e7e8 d2e3 e8d8 e4h1 d8e7 h1e4 c8d7 e3d2 e7e8 e4h1 e8d8 d2e3 d8c7 h1f3
 19	 -0.24 	195966	0:00.05	c2d2 e7d7 d2e3 a6b7 e4f3 d7d8 e3d2 b7c8 d2e3 c8d7 f3e4 d7e8 e3d2 d8c7 d2e3 c7b7 e4f3 b7a6 f3e4
 18	 -0.53 	103535	0:00.03	c2d2 e7d7 d2e3 d7c7 e4g2 a6c8 g2f3 c7b7 e3d2 c8d7 d2e3 d7e8 f3e4 b7c8 e4f3 c8d8 e3d2 d8e7 d2e3
 17	 -0.65 	89035  	0:00.03	c2d2 e7d7 d2e3 d7c7 e4g2 a6c8 g2f3 c8b7 f3e4 c7b6 e4f3 b7a6 f3e4 a6c8 e4f3 b6c7 e3d2 c8b7
 16	 -0.65 	86361  	0:00.03	c2d2 e7d7 d2e3 d7c7 e4g2 a6c8 g2f3 c8d7 e3d2 c7b6 d2e3 b6a6 f3e4 a6b7 e4f3 b7b6 f3e4 d7e8
 15	 -0.65 	64274  	0:00.02	c2d2 a6c8 d2e3 e7d8 e4f3 d8d7 f3e4 d7e7 e4f3 e7d8 f3e4 c8d7 e4f3 d7e8 f3e4
 14	 -0.87 	56721  	0:00.02	c2d2 a6c8 d2e3 e7d8 e4f3 d8c7 e3d2 c8b7 d2e3 c7d7 f3e4 d7d8 e3d2 d8c7 e4f3
 13	 -0.87 	42692  	0:00.01	c2d2 a6c8 e4f3 e7d8 f3e4 d8c7 d2e2 c8d7 e4f3 d7e8 f3e4 c7d7 e2e3
 12	 -1.15 	40605  	0:00.01	c2d2 a6c8 e4f3 c8d7 d2e2 d7e8 e2e3 e7d7 f3e4 d7c7 e3d2 c7d8
 11	 -1.03 	30803  	0:00.01	c2d2 a6b7 d2e2 e7d7 e2e3 d7d8 e4f3 b7c8 e3e2 d8c7 f3e4 c8d7
 10	 -0.98 	17582  	0:00.00	c2d2 a6b7 d2e2 e7d8 e2d2 b7c8 d2d1 c8d7 d1d2 d7e8 d2e3
  9	 -1.02 	10782  	0:00.00	e4f3 a6c8 c2d2 c8b7 d2d1 e7d7 d1d2 d7c7 d2e3
  8	 -1.21 	3821    	0:00.00	c2d2 a6b7 e4g2 e7d8 g2f3 d8c8 d2e3 c8c7 f3e2
  7	 -1.10 	2373    	0:00.00	c2d2 a6b7 e4g2 e7d7 g2f3 d7c7 d2e3 c7b6
  6	 -1.18 	1873    	0:00.00	c2d2 a6b7 e4g2 e7d7 g2f3 d7c7
  5	 -1.17 	1020    	0:00.00	c2d2 a6b7 d2e3 e7d7 e4f3
  4	 -1.05 	334      	0:00.00	e4f3 a6b7 c2d2
  3	 -1.16 	281      	0:00.00	e4f3 a6b7 c2d2
  2	 -0.92 	95        	0:00.00	c2d2 a6b7
  1	 -1.04 	37        	0:00.00	c2d2
  0	Found 145 tablebases
https://rwbc-chess.de

trollwatch:
Chessqueen + chessica + AlexChess + Eduard + Sylwy
User avatar
MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: Drawn ending, Stockfish evaluates -+ ?

Post by MikeB »

Ponti wrote: Fri Jan 03, 2020 4:47 am Isn't this a draw ?
Ponti - DGT Centaur (intermediate level)

[d]8/4k3/b2p1p2/2pPpPp1/1pP1B1Pp/1P1P3P/2K5/8 w - - 0 42
I’m not sure why you are asking - but I prefer to use computers for what we don’t know and not for what we know. That’s just me - I have no issues with folks being different from me - diversity is good.
Image
User avatar
M ANSARI
Posts: 3707
Joined: Thu Mar 16, 2006 7:10 pm

Re: Drawn ending, Stockfish evaluates -+ ?

Post by M ANSARI »

Only way for black to break through is to sac his bishop for a pawn, but that seems easy enough to prevent … so obviously a draw.