On 11/12/07, Don Dailey <[EMAIL PROTECTED]> wrote: > Ok, on 2x2 I get a consistent result now that I implemented PSK. It > gives the same result with SSK too. It's a 1 point win for the first > player. I'm not sure this is in agreement with other peoples > findings. But it appears to be consistent. I can work my way
Yes, this is consistent with my programs at http://www.cwi.nl/~tromp/java/go/twoxtwo.html > through the game and it always returns the same score if I make the > move(s) the search believes is best. > > After black plays the first move, white's best response is to move to > the opposite corner. Otherwise it's a 4 point win for black. > Here are the parameters I use: > 1. positional superko unless otherwise stated. > 2. evaluation function: Each stone is alive - an empty point > belongs to a player if only his stones touch it. > 3. game over after 2 passes. > 4. suicide illegal. Suicide is particularly useless on 2x2 :-) > 3x3 gives a black win by 9 points (the whole board.) > If black plays first move on the edge (a2 for instance) then he wins by > 3 points instead of 9. The only subtlety is that after white B2, black must "clamp" at c2, since the hane moves at b1/b3 only win by 2. > If black plays first move on corner, white wins by 9 points. > Does anyone have any data to check these "facts" ?? matches manual analysis and previous computer search. > It may try this with 4x4 after doing something to improve the move ordering. That should come out as B+2. regards, -John _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
