Author: Gian-Carlo Pascutto
Date: 00:24:52 07/10/02
Go up one level in this thread
A version of my program that played crazyhouse chess used two hashkeys, one for the pieces in hand and one for the pieces on the board. Both 32 bits. Used for both evaluation caching and ttable. After about 1.5 years I discovered a bug that erronously always returned a hit regardless of the hash of the pieces in hand. Because in crazyhouse this totally changes kingsafety, it was essentially returning random evaluations each time. I fixed this. Some of the weird scores I saw were gone, but playing strength was basically unaffected. The reasoning is simply this. I am doing about 599 999 totally wrong evaluations per second. The search corrects for them. What are 100 hash collisions going to change? -- GCP
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.