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Get your engine Ready---White to play and Win
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Jorge Pichard



Joined: 09 Mar 2006
Posts: 2559
PostPost subject: Re: Get your engine Ready---White to play and Win    Posted: Tue Mar 20, 2012 12:39 am Reply to topic Reply with quote
When you are letting an engine to solve an endgame position you should avoid using tablebases, otherwise the engine is NOT solving at all.


JVMerlino wrote:
pichy wrote:
[D]8/8/8/8/4n3/K1P5/P1P5/Bk6 w - - 0 1
   ::    ::    ::    ::
::    ::    ::    ::    
   ::    ::    ::    ::
::    ::    ::    ::    
   ::    :: BN ::    ::
WK    WP    ::    ::    
WP :: WP ::    ::    ::
WB BK ::    ::    ::    


Pretty easy with tablebases if even Myrddin can get this one:

1. Bb2 Nd2 {apparently forced?} 2.c4!

And 6-man tablebases say that 2...Nxc4 is Mate in 29 for White after 3.Kb4!!

Here's what Myrddin says:

Code:

 9    36      4      5415 a1b2 b1c2 c3c4 e4d6 c4c5 d6c4 a3b4 c4b2 c5c6 b2d3 b4a3
10    76      4      5681 a1b2!
10   186      4      5950 a1b2!
10   328      6     16606 a1b2 e4d2 c3c4 d2c4 a3b4 c4d2 b2c3 d2e4 a2a3 b1c2 c3d4
11   325      6     18299 a1b2 e4d2 c3c4 d2c4 a3b4 c4d2 b2c3 d2e4 b4b3 e4c5 b3c4 b1c2 a2a3
12   320      7     22775 a1b2 e4d2 c3c4 d2c4 a3b4 c4d2 b2c3 d2e4 b4b3 e4c5 b3c4 b1c2 a2a3 c5e4
13   360     10     28832 a1b2!
13   417     18     98575 a1b2 b1c2 c3c4 e4c5 b2f6 c2d3 a3b4 c5a6 b4b5 a6c7 b5c5 c7e6 c5b4 d3e4 b4a3 e6d4 f6d4 e4d4
14   396     23    120427 a1b2 b1c2 c3c4 e4c5 b2f6 c2d3 a3b4 c5a6 b4b5 a6c7 b5b6 c7e6 c4c5 d3e4 c5c6 e4d5
15   419     29    156618 a1b2 b1c2 c3c4 e4c5 b2f6 c2d3 a3b4 c5a6 b4b5 a6c7 b5b6 c7e6 c4c5 e6f4 f6e5 f4d5 b6a5 d3e4
16   436     71    413610 a1b2 e4c5 c3c4 c5e6 b2f6 b1c2 a3b4 c2d3 a2a3 d3e4 b4b3 e4d3 f6e5 d3e4 e5c3 e6f4
17   441     92    556290 a1b2 e4c5 c3c4 c5e6 b2f6 b1c2 a3b4 c2d3 a2a3 d3e4 b4b3 e4d3 f6e5 d3e4 e5c3 e4d3 c3f6
18   426    152    915315 a1b2 e4c5 c3c4 c5e6 b2f6 b1c2 a3b4 c2d3 a2a3 d3e4 b4b3 e4d3 f6e5 d3e4 e5d6 e4d4 a3a4 d4e4
19   431    282   1800832 a1b2 e4d2 c3c4 d2c4 a3b4 c4d6 b4b3 d6b7 c2c4 b7a5 b3b4 a5c6 b4a3 b1c2 c4c5 c2d3 a3b3 d3e4 b3c4 e4e3 b2c3 e3e4
20   446    354   2293999 a1b2 e4d2 c3c4 d2c4 a3b4 c4d6 b4b3 d6b7 c2c4 b7a5 b3b4 a5c6 b4a3 b1c2 c4c5 c2d3 a3b3 d3e4 b3c4 e4e3 b2c3 e3e4 a2a3
21   444    500   3180700 a1b2 e4d2 c3c4 d2c4 a3b4 c4d6 b4b3 d6b7 c2c4 b7a5 b3b4 a5c6 b4a3 b1c2 c4c5 c2d3 a3b3 d3e4 b3c4 e4e3 b2c3 e3e4 a2a3 c6e5
22   461   1014   6401962 a1b2 e4d2 c3c4 d2c4 a3b4 c4d6 b4b3 d6b7 c2c4 b7a5 b3b4 a5c6 b4a3 b1c2 c4c5 c2d2 a3b3 d2e3 b3c4 e3e4 b2c3 c6e7 c5c6 e7d5 a2a3
23   462   1886  11447288 a1b2 e4d2 c3c4 d2c4 a3b4 c4d6 b4b3 d6b7 c2c4 b7a5 b3b4 a5c6 b4a3 b1c2 c4c5 c2d2 a3b3 d2e3 b3c4 e3e4 b2c3 e4e3 a2a4 e3e4 a4a5 e4e3


jm
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Subject Author Date/Time
Get your engine Ready---White to play and Win Jorge Pichard Tue Mar 20, 2012 12:00 am
      Re: Get your engine Ready---White to play and Win gerold daniels Tue Mar 20, 2012 12:25 am
            Re: Get your engine Ready---White to play and Win Ignacio Garcia Tue Mar 20, 2012 1:11 am
                  Re: Get your engine Ready---White to play and Win Alex Brown Tue Mar 20, 2012 1:33 am
                        Re: Get your engine Ready---White to play and Win Ignacio Garcia Tue Mar 20, 2012 1:55 am
                        Re: Get your engine Ready---White to play and Win Jorge Pichard Tue Mar 20, 2012 6:40 am
                              Re: Get your engine Ready---White to play and Win Alex Brown Tue Mar 20, 2012 8:17 am
                                    Re: Get your engine Ready---White to play and Win Jorge Pichard Tue Mar 20, 2012 11:18 am
                        Re: Get your engine Ready---White to play and Win Alex Brown Tue Mar 20, 2012 8:43 am
      Re: Get your engine Ready---White to play and Win John Merlino Tue Mar 20, 2012 12:28 am
            Re: Get your engine Ready---White to play and Win Jorge Pichard Tue Mar 20, 2012 12:39 am
                  Re: Get your engine Ready---White to play and Win Louis Zulli Tue Mar 20, 2012 11:23 am
                        Re: Get your engine Ready---White to play and Win Matthew R. Brades Tue Mar 20, 2012 4:07 pm
      Re: Get your engine Ready---White to play and Win Charles Roberson Tue Mar 20, 2012 2:50 am
            Re: Get your engine Ready---White to play and Win Jorge Pichard Thu Mar 22, 2012 5:49 pm
                  Re: Get your engine Ready---White to play and Win Ernest Bonnem Thu Mar 22, 2012 6:21 pm
                        Re: White to play and Win, allow your engine to solve it Jorge Pichard Thu Mar 22, 2012 6:35 pm
                  Re: Get your engine Ready---White to play and Win Louis Zulli Fri Mar 23, 2012 12:10 pm
                        Re: Get your engine Ready---White to play and Win Jorge Pichard Fri Mar 23, 2012 5:12 pm
                              Re: Get your engine Ready---White to play and Win Jorge Pichard Fri Mar 23, 2012 5:36 pm
      Re: Get your engine Ready---White to play and Win Gabriel LEPERLIER Sat Mar 24, 2012 11:08 pm
            Re: For the best Engines----White to play and Mate in 262! Jorge Pichard Sun Mar 25, 2012 1:05 am
                  Re: For the best Engines----White to play and Mate in 262 Seb Dragulic Sun Mar 25, 2012 1:12 am
                  Re: For the best Engines----White to play and Mate in 262! Terry McCracken Sun Mar 25, 2012 2:02 am
                        Re: For the best Engines----White to play and Mate in 262! Jorge Pichard Sun Mar 25, 2012 3:21 am
                  Re: For the best Engines----White to play and Mate in 262! Mike Libanan Sun Mar 25, 2012 10:44 pm
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