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The Knightmate Challenge 2010
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H.G.Muller



Joined: 10 Mar 2006
Posts: 21015
Location: Amsterdam

PostPost subject: Re: The Knightmate Challenge 2010    Posted: Thu Jan 14, 2010 7:47 pm Reply to topic Reply with quote

The FEN caharacters WinBoard uses for Knightmate are:

M for the non-royal King (.k.a. Man or Commoner) that replaces the Knights
K for the Royal Knight (depicted as Unicorn)

So the initial setup would be

[d] rmbqkbmr/pppppppp/8/8/8/8/PPPPPPPP/RMBQKBMR w

The Royal Knight castles like a normal King, so the differences with normal Chess from the engine perspective are tiny. (In converting Joker I did encounter n unexpeced problem, though: Joker's move generator first looks for pinned pieces, and then generates moves along the pin ray separately. But, unlike a Knight, a Commoner can have moves along the pin ray!)

If your eval recognizes certain combinations of material as draw (which Joker doesn't), you would have to make changes there too: KRK is a draw! (Just like KBK and KMK.) I have no idea what that does for the Rook value. (Never tested it!)
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Subject Author Date/Time
The Knightmate Challenge 2010 H.G.Muller Mon Jan 04, 2010 11:22 am
      Re: The Knightmate Challenge 2010 H.G.Muller Mon Jan 04, 2010 4:26 pm
      Re: The Knightmate Challenge 2010 H.G.Muller Sun Jan 10, 2010 10:36 am
      Re: The Knightmate Challenge 2010 H.G.Muller Tue Jan 12, 2010 5:20 pm
      Re: The Knightmate Challenge 2010 H.G.Muller Thu Jan 14, 2010 6:27 pm
            Re: The Knightmate Challenge 2010 Jim Ablett Thu Jan 14, 2010 7:00 pm
      Re: The Knightmate Challenge 2010 Richard Allbert Thu Jan 14, 2010 7:18 pm
            Re: The Knightmate Challenge 2010 H.G.Muller Thu Jan 14, 2010 7:47 pm
                  Re: The Knightmate Challenge 2010 Richard Allbert Sat Jan 16, 2010 11:31 am
                  Re: The Knightmate Challenge 2010 Richard Allbert Sat Jan 16, 2010 12:07 pm
      Re: The Knightmate Challenge 2010 Richard Allbert Sat Jan 16, 2010 12:13 pm
            Re: The Knightmate Challenge 2010 Jim Ablett Sat Jan 16, 2010 1:24 pm
                  Re: The Knightmate Challenge 2010 Richard Allbert Sun Jan 17, 2010 11:20 am
      Re: The Knightmate Challenge 2010 H.G.Muller Mon Jan 18, 2010 10:43 pm
            Re: The Knightmate Challenge 2010 Richard Allbert Tue Jan 19, 2010 6:03 am
                  Re: The Knightmate Challenge 2010 H.G.Muller Tue Jan 19, 2010 7:31 am
                        Re: The Knightmate Challenge 2010 Richard Allbert Tue Jan 19, 2010 4:54 pm
      Re: The Knightmate Challenge 2010 H.G.Muller Fri Jan 22, 2010 1:31 pm
            Re: The Knightmate Challenge 2010 H.G.Muller Fri Jan 22, 2010 1:45 pm
            Re: The Knightmate Challenge 2010 H.G.Muller Fri Jan 22, 2010 2:17 pm
                  Re: The Knightmate Challenge 2010 Richard Allbert Sat Jan 23, 2010 3:19 pm
                  Re: The Knightmate Challenge 2010 Richard Allbert Sat Jan 23, 2010 4:09 pm
                        Re: The Knightmate Challenge 2010 H.G.Muller Sat Jan 23, 2010 6:53 pm
                              Re: The Knightmate Challenge 2010 Richard Allbert Sun Jan 24, 2010 10:05 am
                                    Re: The Knightmate Challenge 2010 H.G.Muller Sun Jan 24, 2010 11:23 am
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