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descriptionCheng EmptyChengSat Jan 21, 2012 4:45 pm

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Cheng3 ver. 1.07 01/2012 include sources

changes:
v1.07 some more minor tweaking, more aggressive futility pruning, added support for personalities,
replaced old ugly precomputed zobrist table (~400kB of source code saved, ~200kB binary),
recompiled opening book due to change in zobrist hashes (now cheng3.cbk instead of cheng3.binbook)
added preliminary Linux and OSX (intel) builds
(assume ~+20-30 elo over previous version)

http://www.vlasak.biz/cheng/

descriptionCheng EmptyRe: ChengSun Jan 22, 2012 4:25 pm

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Cheng Cheng

Cheng3 v.1.07 mirror download

descriptionCheng EmptyRe: ChengMon Jan 23, 2012 10:06 am

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Cheng 1.07 for Android (Compiled by Jim Ablett)
http://www.vlasak.biz/cheng/

descriptionCheng EmptyRe: ChengTue Sep 24, 2013 12:59 pm

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Cheng4 0.35 http://www.vlasak.biz/cheng
It supports FRC and lazy SMP, the entire engine has been rewritten from scratch.

descriptionCheng EmptyRe: ChengFri Oct 04, 2013 6:09 am

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Cheng 4 ver. 0,35a
(poderbug in UCI mode fixed! UCI/Xboard, also Linux, OSX & sources!)
-ver 0.35a corrects ponder error in UCI engine

Code:

http://www.vlasak.biz/cheng/

descriptionCheng EmptyRe: ChengTue Nov 12, 2013 1:51 am

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Cheng 4.0.36
- "estimated Elo gain: +28.5"
- this is large download file of 36 MB (includes large book)
http://www.vlasak.biz/cheng

descriptionCheng EmptyRe: ChengFri Nov 15, 2013 3:39 am

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Cheng 4.0.36a
- FRC fix (castling when opponent slider on back rank)
- fix analyzing checkmate returns null move
- WB st command fix (seconds instead of centiseconds)
http://www.vlasak.biz/cheng/

descriptionCheng EmptyRe: ChengSun Jan 18, 2015 7:41 am

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Cheng 4.0.38

Most of the gain (I expect some 30 real elo, maybe more) is due to eval tuning using "Texel tuning method" by Peter Osterlund

http://vlasak.biz/cheng/

descriptionCheng EmptyRe: ChengMon Jul 20, 2015 11:34 pm

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Cheng 4.39

New version (temporarily) available here: http://www.crabaware.com/cheng4/cheng4_39.zip
I guess Emil is on holidays so it should be available soon at the usual http://www.vlasak.biz/cheng

The estimated gain should be around 30 elo (hopefully).
Roughly half of the gain is due to retuning eval using Peter's method.

I changed the versionning a bit so now it's Cheng 4.39 instead of the usual weird cheng4 0.39.

I also fixed a minor bug related to smp (minimum qs depth); I have no idea how (if at all) this will impact smp, we shall see.

For more details see readme.txt.

descriptionCheng EmptyRe: Cheng

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