Author: Uri Blass
Date: 15:22:25 09/30/01
Go up one level in this thread
On September 30, 2001 at 17:36:18, Slater Wold wrote: >When Junior 7 was released a few months back, most people who used it said that >it was too aggressive, and sometimes would give material for almost no reason. > >Those claims were hushed shortly after it won the WMCCC. > >This game was a game against Chess Tiger 14.0, played on playchess.com. It >shows a great example of Deep Junior giving away a piece, for little if any >compensation. > >I understand that in essence, it is trading a piece for 3 pawns. But any human >can look at the board and see, it's a trade that won't pay off in the end. 1)Junior7 also play good sacrifices that other programs do not consider so it is not clear if the alternative not to let it to do it is better. Amir(the programmer of Junior) explained that Juior knows no better way and it means that doing it more materialistic is going to be counter productive(of course there are cases when it is going to be productive but there are more cases when it is going to be counter productive). 2)I have also an example from one of my correspondence games when Junior hesitates if to sacrifice a piece for 3 pawns(it wants to sacrifice a piece after some time but after more time changes it's mind). Deep Fritz in that example likes to sacrifice and it can see a clear advantage but it is not clear if the sacrifice is correct or not correct(I chose to sacrifice the piece and we are already some moves after it). I may post the game later and I do not want to discuss this question here before the game ends. The game is from the championship of Israel in correspondence games and I have 4 out of 5 in the finished games and 3 unfinished games. I have a winning position in 2 out of 3 of my games and the game that I talk about is the only game when I do not feel sure about the result after correct play of both sides. Note that I tried engine-engine games before deciding about the sacrifice and the only thing that I can tell is that there were no draws in these games and none of these games were leading to the position that is today some moves after the sacrifice. Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.