Fabien Letouzey wrote:
_Position after (7-12) 39-33
Black to move
For the time being I do not see any good move for black.
Actually black has good chances, but it's probably hard to prove: (7-12 39-33) 3-9 49-43 9-13 33-28 14-20 28x37 20-25.
Does that mean that the sequence played 7-12 40-35 15-20 was a succession of three mistakes?
I confess I did not imagine Scan could have made a mistake in this game!
It seems to me that you are trying to analyse, with infinite resources, a game that had to be played at about 30 seconds per move. Apparently, this game required extreme precision from both players (fight between win and draw); of course you'll find mistakes.
Yes Fabien I do not forget that it was a rapid game. For your information, even with a lot of time, Damy chooses 40-35 instead of 39-33!
My goal is to try and understand if an improvment of my program is possible!
Maybe I can say that 39-33 looks like a great centre move compare to 40-35 and it seems it remains true through the different sequences. When analysing the work done on this game I conclude that the centre is far more important in the endgame. The draws indentified are always the results of a big center in compensation of the man down.
I will experiment some modification of my eval function to give more importance to the center.
BTW is your centre evaluation depending of the number of pieces remaining on the board?