Crafty
Crafty is a free, open-source computer chess program developed by Dr. Robert M. (Bob) Hyatt. Crafty is constantly being improved by a small team of contributors, including Dr. Hyatt.
Configuration
Crafty can be configured for a stronger game by setting some optional parameters (examples below). These parameters can be put into the crafty.rc (windows) / .craftyrc (linux) file, or used as start-up parameters from the terminal. A more thorough explanations of Crafty's parameters can be found here.
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 syzygy Endgame Tables)
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=4 (Increases Crafty's MaxThreads to 4 for a quad core computer)
Crafty can be configured for a stronger game by setting some optional parameters (examples below). These parameters can be put into the crafty.rc (windows) / .craftyrc (linux) file, or used as start-up parameters from the terminal. A more thorough explanations of Crafty's parameters can be found here.
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 syzygy Endgame Tables)
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=4 (Increases Crafty's MaxThreads to 4 for a quad core computer)
Download:
armv7-pgo, armv7-nopie, arm64v8 : HERE
1,6 Mnps on my armv7 (4 core), how about you?
It working nice,in C4a it needs config file, otherwise Crafty will use only 1 cpu.
ReplyDeleteI don't like one thing,engine leaves a lot of garbage (games and log files) in C4a GUI.
Anyway, thank you Aprijal :)
You can disable it using "log off" in your .craftyrc
DeleteI don't like it too :)
Aprijal,how can i force the engine to use syzygy?
DeleteI never test it!, see ducumentation at crafty official site.
DeleteGet engine terminated error on armv8
ReplyDeleteWhich gui?, are you choose xboard?
DeleteNevermind, Chose xboard and now it works, but it only uses one core
DeleteThis comment has been removed by the author.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteI've deleted my questions because answers are here: Provided config file works. Multi threads work too. I see 7136 knps with 8 threads on MTK6752 using arm8 build and 256 hash. This new record is really hard to believe but it seems true. Crafty goes to depth 25 in 60 seconds!
ReplyDeleteGrrr. Lucky you :)
DeleteHow did you manage to use multi thread? I changed the settings in the config file but crafty only uses one core
DeleteYou don't need to change anything in config file, just add it as an engine to the C4a GUI.
DeleteShort message will appear "Crafty use 4 cores".
Don't forget to change "log off" in your .craftyrc, otherwise Crafty leaves a lot of garbage in the GUI.
DeleteI reinstalled crafty and left the settings intact, but cfa gui still reports 1 core
DeleteDid you added config file to the C4a GUI, AS ENGINE?
DeleteOh! I see, thank you, now it's working, but how do I set it to 8cores?
Delete2900+kn/s on huawei p8 Lite on 4 cores
DeleteWhith 8 cores almost 4000kn/s
DeleteThis comment has been removed by the author.
DeleteThis comment has been removed by the author.
DeleteIf i'm not mistaken, you need to write on config file->
Deleteponder offmt=4hash=128mhashp=8mxboard=logoff=smpmt=8
Aprijal, am i wrong? :)
log off- is correct..
Deletemt / smpmt, it's same, choose one. And don't forget xboard and newline in the end of your config file
DeleteThank you my friend! Alex :)
DeleteHey buddy, THX for my wishes. I'll send U some very fine French wine.
ReplyDeleteDo you agree? Crafty is ✅!
Alexandrée. ;-)
Hi Aprijal,I'm a newbie here how can I edit or change the parameters of .craftyrc?Is there an app to do it?Thank you.
ReplyDeleteUsing text editor.
DeleteI ordered the file hash=16 and the engine still uses 256 mb why?
ReplyDeleteThank you Aprijal!May I ask if you know the command to make crafty play it's book(book.bin)found on it's official site?I'm trying to test it in CfA.
ReplyDeleteJust install it like engine.
DeleteEngine terminated in droidfish . Armv8
ReplyDeletePlease suggest how address this issue
Thanks in advance
DroidFish don't support winboard engine.
DeleteHi Aprijal,I put on the parameters as prescribed above in jota text editor,how could I transfer it on .craftyrc? BTW,regarding the crafty book it seems that the engine still doesn't recognize the book in CfA.Thank you.
ReplyDeleteJust simply rename your file to .craftyrc
DeleteYour book must be named book.bin and disable your GUI book.
I don't know when you'll be reading this comment but i wanted to keep the record that Crafty 25.2 can't be included in Rapidroid because it can never play a second game with reversed colors vs a round robin opponent. I guess there's something wrong when the gui wants the engine to stop and restart for the next game. I've tried with single core instead of smp too but that didn't help either.
ReplyDeleteLike PC version, this what's I got:
ReplyDeleteWhite(1): new
NOTICE: new command not implemented, please exit and
restart crafty to re-initialize everything for a new game.
Is previous version work fine?
25.0.JA is ok. I always used it without crafty.rc. After trying your 25.2, i tried 25.0 with crafty.rc. It works still ok but mt switch ruins everything and i see no pv, no move either until flag. I've also tried 25.2 without config file but no effect.
DeleteFor the moment i'm replaying Crafty 25.0 games with 256 hash and still single thread. Shame i can't have Crafty Smp... It scales very well in fact and +100 ELO could be added.
Delete