Author: Christophe Theron
Date: 09:27:10 04/20/01
Go up one level in this thread
On April 19, 2001 at 21:00:50, Jeff Lischer wrote:
>On April 19, 2001 at 10:23:47, Robert Hyatt wrote:
>
>>
>>Somebody's confused somewhere. It is a mate in 26 starting with Ne4. IE
>>counting Ne4, white needs exactly 26 moves to force mate. What's with all
>>the other numbers these programs are getting???
>
>I did some experimenting Tiger and it seems that Tiger rounds down! If the mate
>is in 1 ply (or 0.5 moves) Tiger calls it Mate in 0. Tiger calls mate in 2 plies
>(1.0 moves) Mate in 1. And so on. Since the position above is mate in 51 plies
>(25.5 moves), Tiger calls it Mate in 25. :)
>
>I don't know about the other programs.
Tiger announces the number of moves to mate from the position AFTER the first
move is made.
So Tiger computes the solution, makes the first move on the board, then
announces the remaining number of moves to mate from THIS position.
I have received so much complains about this that now I have enough. I'll TRY to
change this in the next version, IF it is possible. The problem is that I can
change the number announced by the engine, but I have to check that all the GUIs
that can run the Tiger engines will accept the change.
Christophe
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