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CFish

descriptionCFish - Page 21 EmptyRe: CFish

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@Zippo wrote:
@lisandr wrote:
ChessMan:

CF_test_290421


https://pixeldrain.com/u/zf2amrDS


Hopely someone who's capable would like to compile this engine into Android platform.. Amien 🤲


If the sources came with it, I would. Sadly though, they do not.

descriptionCFish - Page 21 EmptyRe: CFish

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@SwiftSnips wrote:
@lisandr wrote:
ChessMan

Unofficial Cfish 280421 x32-x64

Added patches:
Bad Outpost Pawn Scale
Add penalty for doubled pawns in agile structure
Tune ordering of moves at internal nodes
Pawns Tuning
Search Parameters Tuning
PV-Nodes likely to fail low
Tune search parameters (with Unai Corzo)
Introduce ProbCut for check evasions (20 Feb 2021)

Bench 3660782

https://pixeldrain.com/u/o7xgJWy8


Ive compiled this engine for Android (aarch64/armv8... no armv7, sorry) for anyone that wants it... Ive also included the default net (nn-62ef826d1a6d.nnue) in a file simply named "network"...

extra=yes lto=yes sparse=yes numa=no ... This combo produced the fastest engine on my phone...

A special thank you to Chessman for adding these addition patches in Cfish...
Heres the dropbox link -- https://www.dropbox.com/s/dr7uc0h92w9l39b/cfish_280421.zip?dl=0


Also, @jorge91 ... If you want to use this compile on your site... You are more than welcome to. Although, this is an "unofficial" version produced by Chessman, its still a solid version and is identical to the original... Just further along in patches.

Doubtful there is another compile that will outperform this one in speed.

descriptionCFish - Page 21 EmptyCFish

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@ SwiftSnips

Sir can u do the same compile for Corchess engine?

descriptionCFish - Page 21 EmptyRe: CFish

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ChessMan:

Unofficial Cfish 020521 x32-x64


Added:
More extensions if SE search is very low (Apr 25 2021)
Use classical eval for Bishop vs Pawns
Simplification: last capture extension
Replace distanceFromPv with a better logic
Remove advanced_pawn_push()
Change advanced pawn push threshold
Use Bitboard over Square in movegen
Introduce DistanceFromPV


Bench 4605329

https://pixeldrain.com/u/nfAU9Twj

descriptionCFish - Page 21 EmptyRe: CFish

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@bikas wrote:
@ SwiftSnips

Sir can u do the same compile for Corchess engine?



Sure let me download the updated one and Ill compile one. Ill leave it in the CorChess section when finished.

descriptionCFish - Page 21 EmptyRe: CFish

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Thanks for including 32-bit.

I have a question:

If the contempt is set to "24", and the Analysis contempt is "off", does that mean that when analyzing the engine won't use contempt? And how does the engine know that it is analyzing and not playing?

descriptionCFish - Page 21 EmptyRe: CFish

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@stardot wrote:
Thanks for including 32-bit.

I have a question:

If the contempt is set to "24", and the Analysis contempt is "off", does that mean that when analyzing the engine won't use contempt? And how does the engine know that it is analyzing and not playing?



Correct, if its off, regardless of what the # is set at... It wont use contempt when analyzing.

And whatever GUI you are using, "talks" to the engine & tells it what to do based on what you are telling, or doing with the GUI yourself.

descriptionCFish - Page 21 EmptyRe: CFish

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–°hessMan:

Unofficial Cfish 090521 x32-x64

Patchess added over latest Cfish (Updated to "Improve play for closed positions".):
Simplify check extension
Thread based reduction tweak
Improve play for closed positions
More extensions if SE search is very low
Use classical eval for Bishop vs Pawns
Simplification: last capture extension
Replace distanceFromPv with a better logic
Remove advanced_pawn_push()
Change advanced pawn push threshold
Use Bitboard over Square in movegen
Introduce DistanceFromPV
Introduce ProbCut for check evasions
Tune search parameters (with Unai Corzo)
PV-Nodes likely to fail low
Search Parameters Tuning
Pawns Tuning
Tune ordering of moves at internal nodes

Bench 3431834

https://pixeldrain.com/u/iUpg8U76

descriptionCFish - Page 21 EmptyRe: CFish

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@SwiftSnips wrote:
@lisandr wrote:
ChessMan

Unofficial Cfish 280421 x32-x64

Added patches:
Bad Outpost Pawn Scale
Add penalty for doubled pawns in agile structure
Tune ordering of moves at internal nodes
Pawns Tuning
Search Parameters Tuning
PV-Nodes likely to fail low
Tune search parameters (with Unai Corzo)
Introduce ProbCut for check evasions (20 Feb 2021)

Bench 3660782

https://pixeldrain.com/u/o7xgJWy8


Ive compiled this engine for Android (aarch64/armv8... no armv7, sorry) for anyone that wants it... Ive also included the default net (nn-62ef826d1a6d.nnue) in a file simply named "network"...

extra=yes lto=yes sparse=yes numa=no ... This combo produced the fastest engine on my phone...

A special thank you to Chessman for adding these addition patches in Cfish...
Heres the dropbox link -- https://www.dropbox.com/s/dr7uc0h92w9l39b/cfish_280421.zip?dl=0


The engine won't start in Droidfish for android. I put the engine in the uci folder. I put the nnue file in a folder called network and put that folder in the uci folder. Anything else I should do?

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