From easiest to hardest_test position 1

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Dariusz
Posts: 364
Joined: Sat Jun 13, 2015 10:08 am
Location: Poland
Full name: Dariusz Domagała

From easiest to hardest_test position 1

Post by Dariusz »

I decided to public few positions from my correspondence games.
Enjoy!

Position nb 1: rather easy to solve for top engines.

Could you take the challenge ? :-)

[D]r2qnrk1/p4pp1/1p2b2p/2p1Pp2/2P5/PnPB1QN1/6PP/R1B2RK1 w - - 3 17

Best move: 17.Bxh6!

[Event "Super Puchar"]
[Site "IMPERIUM SZACHУW"]
[Date "2003.01.01"]
[Round "?"]
[White "Domagala, Dariusz"]
[Black "Leszek, Zalewski"]
[Result "1-0"]
[ECO "E29"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.a3 Bxc3+ 7.bxc3 O-O 8.Ne2 b6 9.e4 d6 10.O-O h6 11.f4 Na5 12.e5 Ne8 13.f5 exf5 14.Ng3 dxe5 15.dxe5 Be6 16.Qf3 Nb3 17.Bxh6 Nxa1 18.Bxf5 1-0
Regards, Darius
https://chessengeria.eu
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Henk
Posts: 7216
Joined: Mon May 27, 2013 10:31 am

Re: From easiest to hardest_test position 1

Post by Henk »

If this is the easiest Skipper is already out.
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Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: From easiest to hardest_test position 1

Post by Vinvin »

Yes, 5 seconds :

Code: Select all

FEN: r2qnrk1/p4pp1/1p2b2p/2p1Pp2/2P5/PnPB1QN1/6PP/R1B2RK1 w - - 3 17

Stockfish_15091020_x64_modern:
...
 20/32	00:00	 3.385k	7.572k	+0,01	17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rce1 Ne6 24.Bd5 Rce8 25.g3 h5 26.Rf2 Kh7 27.Kg2 Qg4 28.Qxg4 hxg4
 21/32	00:00	 5.626k	8.129k	 0,00	17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rce1 Ne6 24.Bd5 Rce8 25.g3 h5 26.Qf6 Qd2 27.Bc6 Rd8 28.Bd5 Rde8
 22/32	00:00	 6.999k	8.274k	+0,02	17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Bd5 Ne6 24.Qe4 Rce8 25.Rcd1 Nc7 26.Rde1 Ne6 27.Re2 Rd8 28.Qf3 Qe7
 23/32	00:01	 9.583k	8.633k	+0,06	17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Bd5 Ne6 24.Qe4 Rce8 25.Rcd1 Nc7 26.Rde1 Ne6 27.Re2 Kg7 28.g3 Kh7 29.Rd1 Kg7 30.Bxe6
 24/32	00:01	 12.916k	8.853k	+0,15	17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Bd5 Ne6 24.Qe4 h5 25.Rcd1 Rce8 26.h4 Qg4 27.Qxg4 hxg4 28.Rf6 Kh7 29.Bxe6 Rxe6 30.Rd7
 25/33	00:02	 18.981k	8.954k	+0,24	17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Bd5 Ne6 24.Qe4 h5 25.Rcd1 Rce8 26.Rf6 Kg7 27.Bc6 Re7 28.h4 Qg3 29.Rd3 Qg4 30.Qxg4 hxg4 31.Rd7 Rxd7 32.Bxd7
 26/39+	00:04	 43.154k	9.414k	+0,24	17.Bxh6
 26/39+	00:05	 49.821k	9.254k	+0,34	17.Bxh6
 26/39+	00:07	 68.533k	9.557k	+0,68	17.Bxh6
 26/45	00:10	 104.522k	9.731k	+0,79	17.Bxh6 Qh4 18.Qxa8 Qxh6 19.Rae1 f4 20.Ne4 Nd6 21.Qxa7 Nxe4 22.Bxe4 Nd2 23.Qxb6 Nxf1 24.Rxf1 f3 25.Qxc5 fxg2 26.Rd1 Qh5 27.Qd4 Bxc4 28.a4 Re8 29.Rd2 Be2 30.Bxg2 Rxe5 31.Qd8+ Kh7 32.h4
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MMoisan
Posts: 70
Joined: Thu Sep 13, 2012 1:42 am

Re: From easiest to hardest_test position 1

Post by MMoisan »

This is what I get with Zappa 1.1:

Code: Select all

New game
r2qnrk1/p4pp1/1p2b2p/2p1Pp2/2P5/PnPB1QN1/6PP/R1B2RK1 w - - 0 1

Analysis by Zappa 1.1:

17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Qb8 
  =/+  (-0.56)   Depth: 7   00:00:00  64kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Bd7 20.Bc2 
  =  (-0.28)   Depth: 7   00:00:00  81kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Bd7 20.Bc2 
  =  (-0.28)   Depth: 7   00:00:00  96kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Bd7 20.Qf4 Kh7 
  =/+  (-0.66)   Depth: 8   00:00:00  131kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Bd7 20.Qf4 Kh7 
  =/+  (-0.66)   Depth: 8   00:00:00  201kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Bd7 20.Bxf5 Qg5 
  =/+  (-0.36)   Depth: 9   00:00:00  301kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Qb8 20.Qf4 Ng7 21.Qxh6 Qxe5 
  =/+  (-0.35)   Depth: 9   00:00:00  349kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Qb8 20.Qf4 Ng7 21.Qxh6 Qxe5 
  =/+  (-0.35)   Depth: 9   00:00:00  483kN
17.Rb1 Nxc1 18.Bxf5 Bxc4 19.Rfxc1 Bd5 20.Qf2 Nc7 21.c4 Bc6 
  =/+  (-0.63)   Depth: 10   00:00:00  940kN
17.Rb1 Nxc1 18.Bxf5 Bxc4 19.Rfxc1 Bd5 20.Qf2 Nc7 21.c4 Bc6 
  =/+  (-0.63)   Depth: 10   00:00:01  2006kN
17.Rb1 Nxc1 18.Rbxc1 g6 19.Rcd1 Qb8 20.Be2 Ng7 21.Qf4 g5 22.Qe3 
  =/+  (-0.46)   Depth: 11   00:00:01  3317kN
17.Bxf5 Bxf5 18.Nxf5 Nxa1 19.e6 Qb8 20.e7 Nc2 21.exf8Q+ Kxf8 
  =/+  (-0.33)   Depth: 11   00:00:02  5552kN
17.Bxf5 Nc7 18.Qg4 Kh8 19.Rb1 Nxc1 20.Rbxc1 Qd2 21.Kh1 g6 22.Bxe6 Nxe6 
  =  (-0.24)   Depth: 11   00:00:02  7684kN
17.Bxf5 Nc7 18.Qg4 Kh8 19.Rb1 Nxc1 20.Rbxc1 Qd2 21.Kh1 g6 22.Bxe6 Nxe6 
  =  (-0.24)   Depth: 11   00:00:03  9823kN
17.Bxf5 Nc7 18.Qg4 Kh8 19.Rb1 Nxc1 20.Rbxc1 Qd2 21.Ne4 Qe3+ 22.Kh1 Bxc4 23.Rfd1 
  =/+  (-0.43)   Depth: 12   00:00:04  12987kN
17.Nxf5 Nxa1 18.Nxh6+ gxh6 19.Qe4 f5 20.exf6 Rf7 21.Qg6+ Kh8 22.Qxh6+ Kg8 23.Qg6+ Kh8 24.Qh6+ 
  =  (0.00)   Depth: 12   00:00:05  17176kN
17.Nxf5 Nxa1 18.Nxh6+ gxh6 19.Qe4 f5 20.exf6 Rf7 21.Qg6+ Kh8 22.Qxh6+ Kg8 23.Qg6+ Kh8 24.Qh6+ 
  =  (0.00)   Depth: 12   00:00:06  18134kN
17.Nxf5 Nxa1 18.Nxh6+ gxh6 19.Qe4 f5 20.exf6 Qd7 21.Qg6+ Kh8 22.Qxh6+ Kg8 23.Qg6+ Kh8 24.Rf4 Bg4 25.Qh6+ Kg8 26.Qg6+ Kh8 
  =  (0.00)   Depth: 13   00:00:07  23883kN
17.Nxf5 Nxa1 18.Nxh6+ gxh6 19.Qe4 f5 20.exf6 Qd7 21.Qg6+ Kh8 22.Qxh6+ Kg8 23.Qg6+ Kh8 24.Rf4 Bg4 25.Qh6+ Kg8 26.Qg6+ Kh8 
  =  (0.00)   Depth: 13   00:00:09  28825kN
17.Nxf5 Nxa1 18.Nxh6+ gxh6 19.Qe4 f5 20.exf6 Qd7 21.Qg6+ Kh8 22.Qxh6+ Kg8 23.Qg6+ Kh8 24.Rf4 Qb5 25.cxb5 
  =  (0.30)   Depth: 14   00:00:15  47967kN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Qxe5 
  =  (0.28)   Depth: 14   00:00:23  77489kN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Qxe5 
  =  (0.28)   Depth: 14   00:00:26  87851kN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Rfe8 
  +/=  (0.58)   Depth: 15   00:00:58  190MN
17.Nxf5 Nxa1 18.Nxh6+ gxh6 19.Qe4 f5 20.exf6 Rf7 21.Qg6+ Kh8 22.Qxh6+ Kg8 23.Qg6+ Kh8 24.Rf4 Qxf6 25.Rxf6 Nxf6 
  +/=  (0.59)   Depth: 15   00:01:13  247MN
17.Nxf5 Nxa1 18.Nxh6+ gxh6 19.Qe4 f5 20.exf6 Rf7 21.Qg6+ Kh8 22.Qxh6+ Kg8 23.Qg6+ Kh8 24.Rf4 Qxf6 25.Rxf6 Nxf6 
  +/=  (0.59)   Depth: 15   00:01:23  280MN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Qxe5 24.Rd7 f5 
  +/=  (0.42)   Depth: 16   00:01:58  386MN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Qxe5 24.Rd7 f5 
  +/=  (0.42)   Depth: 16   00:02:20  453MN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Qxe5 24.Rd5 Qe6 25.Qf4 
  +/=  (0.43)   Depth: 17   00:03:03  583MN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Qxe5 24.Rd5 Qe6 25.Qf4 
  +/=  (0.43)   Depth: 17   00:05:22  999MN
17.Nxf5 Bxf5 18.Qxf5 g6 19.Qf3 Ng7 20.Rb1 Nxc1 21.Be4 Rc8 22.Rbxc1 Qg5 23.Rcd1 Qxe5 24.Rd7 Rc7 25.Rd5 Qe6 
  +/=  (0.34)   Depth: 18   00:07:00  1298MN
17.Bxf5 Nc7 18.Bxh6 Qh4 19.Nh5 gxh6 20.Nf6+ Kg7 21.Bxe6 Nxe6 22.Rab1 Qxc4 23.Qf5 Ng5 24.Nh5+ Kg8 25.Qf6 Ne6 26.Qxh6 f5 
  +/=  (0.51)   Depth: 18   00:11:18  2124MN
17.Bxf5 Nc7 18.Bxh6 Qh4 19.Nh5 gxh6 20.Nf6+ Kg7 21.Bxe6 Nxe6 22.Rab1 Qxc4 23.Qf5 Ng5 24.Nh5+ Kg8 25.Qf6 Ne6 26.Qxh6 f5 
  +/=  (0.51)   Depth: 18   00:12:10  2124MN
17.Bxf5 Nc7 18.Bxh6 Qh4 19.Nh5 gxh6 20.Nf6+ Kg7 21.Bxe6 Nxe6 22.Rab1 Qxc4 23.Qf5 Ng5 24.Nh5+ Kg8 25.Qf6 Ne6 26.Qxh6 Nd8 
  +/=  (0.51)   Depth: 19   00:17:33  2124MN
17.Bxf5 Nc7 18.Bxh6 Qh4 19.Nh5 gxh6 20.Nf6+ Kg7 21.Bxe6 Nxe6 22.Rab1 Qxc4 23.Qf5 Ng5 24.Nh5+ Kg8 25.Qf6 Ne6 26.Qxh6 Nd8 
  +/=  (0.51)   Depth: 19   00:20:02  2124MN
17.Bxf5 Nc7 18.Bxh6 Qh4 19.Nh5 gxh6 20.Nf6+ Kg7 21.Bxe6 Nxe6 22.Rab1 Ng5 23.Qe2 Nd4 24.cxd4 Qxd4+ 25.Kh1 Rfd8 26.Rbc1 Qh4 
  +/-  (0.80)   Depth: 20   00:36:03  2124MN
17.Bxf5 Nc7 18.Bxh6 Qh4 19.Nh5 gxh6 20.Nf6+ Kg7 21.Bxe6 Nxe6 22.Rab1 Ng5 23.Qe2 Nd4 24.cxd4 Qxd4+ 25.Kh1 Rfd8 26.Rbc1 Qh4 
  +/-  (0.80)   Depth: 20   00:42:01  2124MN
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jdart
Posts: 4366
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Re: From easiest to hardest_test position 1

Post by jdart »

I also get Bxf5 after 33 ply:

Code: Select all

test \chess\temp\bh6.epd 900 -v
 bm Bxh6
1       0.00    Bxf5    -4.04   17
1       0.00    Bb2     -2.64   85
1       0.00    Bf4     -2.60   170
1       0.00    Rb1     -1.03   323
1       0.01    Ra2     -0.99   340
1       0.01    Ra2     -0.99   455
2       0.01    Ra2     -0.99   749
3       0.01    Ra2     -0.99   1747
4       0.01    Rb1     -0.95   2155
4       0.01    Rb1     -0.95   2402
5       0.01    Rb1     -0.96   3205
6       0.01    Ra2     -0.97   5806
6       0.01    Ra2     -0.97   5815
7       0.02    Ra2!    -0.78   7617
7       0.02    Ra2     -0.61   12283
8       0.02    Ra2     -0.59   18232
9       0.03    Ra2     -0.64   24314
10      0.04    Ra2!    -0.45   44017
10      0.05    Ra2     -0.40   73155
11      0.06    Ra2     -0.47   104520
12      0.08    Rb1     -0.53   163136
12      0.08    Rb1     -0.53   163137
13      0.13    Nxf5!   -0.34   323413
13      0.15    Nxf5    +0.00   419091
14      0.19    Nxf5    +0.00   540580
15      0.23    Nxf5    +0.00   697092
16      0.28    Nxf5    +0.00   905707
17      0.57    Nxf5    +0.00   2051915
18      1.09    Nxf5    +0.00   4351044
19      1.79    Nxf5    +0.00   7160475
20      2.87    Nxf5    +0.00   12092383
21      4.67    Nxf5!   +0.19   13769297
21      6.21    Nxf5    +0.23   20761674
22      7.35    Nxf5    +0.21   26076180
23      9.86    Nxf5    +0.11   35025802
24      12.56   Nxf5!   +0.29   43215943
24      14.96   Nxf5    +0.49   52044959
25      31.75   Bxf5!   +0.68   122079570
25      41.88   Bxf5    +0.57   165311637
26      53.47   Bxf5    +0.50   212845035
27      60.55   Bxf5!   +0.68   241250913
27      67.17   Bxf5    +0.57   268503509
28      111.68   --     +0.39   453415307
28      123.33  Bxf5!   +0.76   497223457
28      132.02  Bxf5    +0.76   527300690
29      153.70  Bxf5    +0.93   608647144
30      184.36   --     +0.74   743455943
30      218.06  Bxf5    +0.84   888467983
31      299.41  Bxf5    +0.83   1248182628
32      390.06  Bxf5    +0.90   1630345918
33      477.56  Bxf5    +0.99   2027826051
4.31M nodes/second.
0 tablebase probes, 0 tablebase hits
168638 splits, average thread usage=3.93
result: Bxf5    score: +0.99            ** not solved in 900.02 secs. (3880.27M
nodes)
Bxf5 Bxc4 Rd1 Qe7 Qxa8 Nxa1 Qe4 Be6 Bh7+ Kh8 Nf5 Bxf5 Bxf5 Nb3 Rd7 Nf6 exf6 Qxe4 fxg7+ Kxg7 Bxh6+ Kxh6 Bxe4 Re8 Bd5 Nc1 Bxf7 Re3 Rxa7 Rxc3 Rb7 Nd3 h4 b5 Rxb5 Rxa3 Rb6+ Kg7
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kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: From easiest to hardest_test position 1

Post by kgburcham »

[D] r2qnrk1/p4pp1/1p2b2p/2p1Pp2/2P5/PnPB1QN1/6PP/R1B2RK1 w - -

8 cores at 4.3 HT off
Engine: Arasan 18.0 (2048 MB)
by Jon Dart
19.01 0:01 0.00 1.Nxf5 Nxa1 2.Nxh6+ gxh6 3.Qe4 f5 4.exf6 Qd7 5.Qg6+ Kh8 6.Qxh6+ Kg8 7.Qg6+ Kh8 8.Qh6+ (10.496.613) 6719
20.01 0:01 +0.18++ 1.Nxf5 Nxa1 (13.054.586) 7022
20.01 0:02 +0.24 1.Nxf5 Bxf5 2.Qxf5 g6 3.Qf3 Ng7 4.Rb1 Nxc1 5.Rbxc1 Qg5 6.Rce1 Rae8 7.Re2 Rb8 8.Be4 Rbe8 9.Bd5 Re7 10.Qe3 Nf5 11.Qxg5 hxg5 (19.890.482) 7488
21.01 0:03 +0.24 1.Nxf5 Bxf5 2.Qxf5 g6 3.Qf3 Ng7 4.Rb1 Nxc1 5.Rbxc1 Qg5 6.Rce1 Rae8 7.Re2 Kh8 8.Qb7 Re7 9.Qd5 Ree8 10.Rxf7 Rxf7 11.Qxf7 (23.672.021) 7462
22.01 0:04 +0.21 1.Nxf5 Bxf5 2.Qxf5 g6 3.Qf3 Ng7 4.Rb1 Nxc1 5.Rbxc1 Qg5 6.Rce1 Rae8 7.Re2 Kh8 8.Qb7 Re7 9.Qd5 Ne6 10.Qf3 Nc7 11.Qc6 Ne6 (31.642.324) 7338
23.01 0:07 +0.30 1.Nxf5 Bxf5 2.Qxf5 g6 3.Qf3 Ng7 4.Rb1 Nxc1 5.Be4 Nb3 6.Rxb3 Rb8 7.Rbb1 Qg5 8.Rbe1 Rbe8 9.Bd5 Re7 10.Qf4 Qxf4 11.Rxf4 Rd8 12.Kf2 (57.241.729) 7648
24.01 0:09 +0.31 1.Nxf5 Bxf5 2.Qxf5 g6 3.Qf3 Ng7 4.Rb1 Nxc1 5.Be4 Nb3 6.Rxb3 Rb8 7.Rbb1 Qg5 8.Rbe1 Rbe8 9.Bd5 Re7 10.Qf6 Qxf6 11.Rxf6 Kh7 12.g4 Ne6 (76.406.103) 7861
25.01 0:17 +0.20 1.Nxf5 Bxf5 2.Qxf5 g6 3.Qf3 Ng7 4.Rb1 Nxc1 5.Be4 Nb3 6.Rxb3 Rb8 7.Rbb1 Qg5 8.Bd5 Nf5 9.Rbe1 Kh8 10.Be4 Ng7 11.Qf6 Rbe8 12.Bd5 Qxf6 13.exf6 (139.332.179) 8150
26.01 0:52 +0.39++ 1.Bxf5 (467.294.224) 8890
26.01 0:56 +0.76++ 1.Bxf5 Bxf5 (508.153.928) 8936
26.01 1:18 +0.85 1.Bxf5 Nc7 2.Bxh6 Qh4 3.Bxg7 Kxg7 4.Rad1 Kh8 5.Bxe6 Nxe6 6.Nf5 Qh7 7.Nd6 Ng5 8.Qf4 Rg8 9.Qf6+ Qg7 10.h4 Qxf6 11.exf6 Ne6 12.Nxf7+ Kh7 13.Rde1 Nf8 14.Ng5+ (712.936.352) 9067
27.01 1:54 +0.66-- 1.Bxf5 Nc7 2.Bxh6 Qh4 3.Bxg7 Kxg7 4.Rad1 Kh8 5.Bxe6 Nxe6 6.Nf5 Qh7 7.Nd6 Ng5 8.Qf4 Rg8 9.Qf6+ Qg7 10.h4 Qxf6 11.exf6 Ne6 12.Nxf7+ Kh7 13.Rde1 Nf8 14.Ng5+ (1.037.680.229) 9097
27.01 2:12 +0.85 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Kh8 4.Rxa1 Qg5 5.Qxa8 fxe6 6.Qe4 Rf4 7.Qc6 Ng7 8.Re1 Rf8 9.Qd7 Qf4 10.Ne4 Rf7 11.Qd8+ Rf8 12.Qc7 Rf7 13.Qb8+ Kh7 14.g3 (1.199.728.377) 9083
27.01 2:12 +0.85 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Kh8 4.Rxa1 Qg5 5.Qxa8 fxe6 6.Qe4 Rf4 7.Qc6 Ng7 8.Re1 Rf8 9.Qd7 Qf4 10.Ne4 Rf7 11.Qd8+ Rf8 12.Qc7 Rf7 13.Qb8+ Kh7 14.g3 (1.199.728.384) 9083
28.01 2:22 +0.85 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Kh8 4.Rxa1 Qg5 5.Qxa8 fxe6 6.Rf1 Qe3+ 7.Kh1 Kg8 8.Rxf8+ Kxf8 9.Qf3+ Qxf3 10.gxf3 Ng7 11.Kg2 Ke7 12.Kf2 Nf5 13.Nxf5+ exf5 14.Ke3 (1.297.499.824) 9088
29.01 3:40 +0.90 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Kh8 4.Rxa1 Qg5 5.Qxa8 fxe6 6.Rf1 Qe3+ 7.Kh1 Kg8 8.Rxf8+ Kxf8 9.Qf3+ Qxf3 10.gxf3 Ng7 11.Kg2 Ke7 12.Kf2 Nf5 13.f4 Nh4 14.Ke3 (2.029.266.174) 9219
30.01 5:06 +1.09++ 1.Bxh6 Nxa1 (2.852.565.940) 9312
30.01 6:10 +1.05 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Qe7 4.Bd5 Qxe5 5.Bxa8 Nb3 6.Ne4 f5 7.Bd5+ Kg7 8.Rf2 Nc7 9.Ng3 Kh8 10.Nxf5 Nd2 11.Qd1 Qxc3 12.g4 Nxd5 13.Qxd2 Qxd2 14.Rxd2 (3.470.349.828) 9379
31.01 8:02 +1.23++ 1.Bxh6 Nxa1 (4.547.880.752) 9432
31.01 10:25 +1.44 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Qe7 4.Bd5 Qxe5 5.Bxa8 Nb3 6.Nf5 Nd6 7.Nxd6 Qxd6 8.Bd5 Qe7 (5.932.174.553) 9480
32.01 12:15 +1.25-- 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Qe7 4.Bd5 Qxe5 5.Bxa8 Nb3 6.Nf5 Nd6 7.Nxd6 Qxd6 8.Bd5 Qe7 (6.999.673.916) 9522
32.01 14:38 +0.87-- 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Qe7 4.Bd5 Qxe5 5.Bxa8 Nb3 6.Nf5 Nd6 7.Nxd6 Qxd6 8.Bd5 Qe7 (8.396.490.873) 9560
32.01 18:06 +1.35 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Qe7 4.Bd5 Qxe5 5.Bxa8 Nb3 6.Nf5 Nd6 7.Nxd6 Qxd6 8.Bd5 Kg7 9.Qg4+ Qg6 10.Qe2 Qg5 11.a4 Qg6 12.Qe5+ Kg8 13.Rf6 Qg7 14.Qe7 (10.421.953.253) 9593
33.01 28:24 +1.17-- 1.Bxh6 Nxa1 2.Bxf5 gxh6 3.Bxe6 Qe7 4.Bd5 Qxe5 5.Bxa8 Nb3 6.Nf5 Nd6 7.Nxd6 Qxd6 8.Bd5 Kg7 9.Qg4+ Qg6 10.Qe2 Qg5 11.a4 Qg6 12.Qe5+ Kg8 13.Rf6 Qg7 14.Qe7 (16.446.027.026) 9651
no chess program was born totally from one mind. all chess programs have many ideas from many minds.
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elcabesa
Posts: 855
Joined: Sun May 23, 2010 1:32 pm

Re: From easiest to hardest_test position 1

Post by elcabesa »

Vajolet needs to reach depth 28, in 25 minutes, to understand Bxh6 is a good move:

info multipv 1 depth 28 seldepth 50 score cp 61 lowerbound pv c1h6
info multipv 1 depth 28 seldepth 47 score cp 69 lowerbound pv c1h6
info multipv 1 depth 28 seldepth 50 score cp 77 pv c1h6 b3a1 d3f5 g7h6 f5e6 g8h8 f1a1 e8c7 e6d5 c7d5 c4d5 d8g5 g3f5 a8e8 h2h4 g5g6 f3f4 h6h5 f5d6 e8e7 g2g3 f8g8 d6f5 e7d7 c3c4 b6b5 a1f1 a7a5 g1g2
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jdart
Posts: 4366
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Re: From easiest to hardest_test position 1

Post by jdart »

Current dev version has LMR scaled back a bit. Doesn't seem to hurt overall but may make it slower on this position.

--Jon
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