Crafty can be configured for a stronger game by setting some optional parameters (examples below). These parameters can be put into the crafty.rc file, or used as start-up parameters from the terminal.
ponder on (Allows Crafty to think on your time)
hash=256m (Increases Crafty's position hash to 256MB)
hashp=64m (Increases Crafty's pawn hash to 64MB)
egtb (Tells Crafty to use Nalimov Endgame Tables (up to 6-Men))
cache=32m (Increases Crafty's Endgame Table Cache to 32MB)
swindle on (Allows Crafty to try to win drawn games (according to Endgame Tables))
mt=2 (Increases Crafty's MaxThreads to 2 for a dual CPU computer)
timebook 80 8 (Tells Crafty to think 80% longer on the first move out of book, then decrease the time over the next 8 moves)
download
http://www.craftychess.com/crafty-23.3.zip
book
http://www.craftychess.com/book.bin
:sm4:
ponder on (Allows Crafty to think on your time)
hash=256m (Increases Crafty's position hash to 256MB)
hashp=64m (Increases Crafty's pawn hash to 64MB)
egtb (Tells Crafty to use Nalimov Endgame Tables (up to 6-Men))
cache=32m (Increases Crafty's Endgame Table Cache to 32MB)
swindle on (Allows Crafty to try to win drawn games (according to Endgame Tables))
mt=2 (Increases Crafty's MaxThreads to 2 for a dual CPU computer)
timebook 80 8 (Tells Crafty to think 80% longer on the first move out of book, then decrease the time over the next 8 moves)
download
http://www.craftychess.com/crafty-23.3.zip
book
http://www.craftychess.com/book.bin
:sm4: