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CPW Eval issues
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Matthew R. Brades



Joined: 17 Jul 2011
Posts: 800
PostPost subject: CPW Eval issues    Posted: Thu Jul 05, 2012 4:10 pm Reply to topic Reply with quote
I implemented the King tropism function in FruitFly 1.1 'Banana' and it was a little too powerful.

In this complex Ruy Lopez, Breyer Variation (my personal favourite), Sigma Chess proudly exclaims mate in -4871!

[D]r2qrbk1/1b3p2/p2p1np1/1pnPp2p/P1p1P3/2P1BNNP/1PBQ1PP1/R3R1K1 w - - 0 19
BR ::    BQ BR BB BK ::
:: BB ::    :: BP ::    
BP ::    BP    BN BP ::
:: BP BN WP BP    :: BP
WP :: BP :: WP ::    ::
::    WP    WB WN WN WP
   WP WB WQ    WP WP ::
WR    ::    WR    WK    


And from the horse's mouth:
Quote:

info depth 14 seldepth 30 score cp 29543 time 73478 nodes 9806465 pv a1b1


It also ruins the chess engine's strength (it thinks Bxc5 dxc5 then Qh6?? is the best move)

Matthew:out
_________________
Well, that's that.

Account. Gone.
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Display posts from previous:   
Subject Author Date/Time
CPW Eval issues Matthew R. Brades Thu Jul 05, 2012 4:10 pm
      Re: CPW Eval issues Robert Hyatt Fri Jul 06, 2012 3:28 pm
            Re: CPW Eval issues Yves Lejeail Sat Jul 07, 2012 12:11 pm
                  Re: CPW Eval issues Matthew R. Brades Sat Jul 07, 2012 3:04 pm
                        Re: CPW Eval issues Robert Hyatt Sat Jul 07, 2012 10:42 pm
                              Re: CPW Eval issues Matthew R. Brades Sun Jul 08, 2012 5:45 am
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