Andscacs - New version 0.86

[brtzsnr]

Sorry - with black to move there is no difference:

I see. It depends on how do you setup the position also.
A new updated version that should work for this case:

www.andscacs.com/andscacs086.zip

Standards are there for a reason and producing a correct FEN is not that complicated. Schredder should fix this bug, especially because the GUI costs money.

[cdani]

Finally I added the BMI2 compile to the zip file:

www.andscacs.com/andscacs086.zip

Now you have four versions:
* andscacsb.exe for 64 bit Windows, requires a Cpu with BMI2 support for the instruction PEXT and is the faster one: (https://en.wikipedia.org/wiki/Bit_Manip ... n_Set_2.29)
* andscacs.exe for 64 bit Windows, requires a Cpu with support for POPCNT instruction and is a little faster than the next two: (http://en.wikipedia.org/wiki/Bit_Manipu ... ction_Sets).
* andscacsn.exe for 64 bit Windows, has not special requirements.
* andscacs32.exe for 32 bit windows. Is something like 50 elo points weaker.

[supersharp77]

a new version, 0.86.

Changes:

* Solved little bugs.
* Improved various evaluation parameters.
* Improvements on king safety.
* Improved lmr.
* Improved some endgames.
* Added uci option "AlwaysFullPv" to show more complete principal variation.
* Some small speed improvements.

http://www.andscacs.com/andscacs086.zip

Should be clearly stronger, probably over 3100 CCRL with one core. But as always let's see if that is true

Excellent work as always Daniel.........Thx AR

[jpqy]

Thank you very much Daniel

JP.

[cdani]

Ingo has run already the gauntlet of Andscacs 0.86 for his rating. Thanks!!

http://www.inwoba.de/A086.html

[cdani]

Detailed changes:

* Don't stop early by low number of changes on first move if it just changed or the evaluation is going badly.
* Penalization for rook advanced that cannot go back as there are own pawns behind.
* Added uci option "AlwaysFullPv" to show more complete principal variation.
* Various parameters where tuned by hand.
* Some parameters where tuned with texel tuning method.
* Improved king safety.
* Attack is less valuable if queen not atacking.
* Increase attack value if there is a pawn break next to king, now or possible in next move.
* Penalization if king cannot move.
* Bug solving and speed improvements.
* krrkrb, krrkrn mostly draw.
* Improved lmr.
* Imbalance: If much material, less compensation.
* Rook in semi open column is less valuable if is heading to a pawn defended by another pawn.
* Minor is less valuable if it cannot go to rival's half.
* Added little bonus for candidate passer.

[Sylwy]

Schredder should fix this bug, especially because the GUI costs money.

WOW, Alex ! Something like Volkswagen emissions scandal ?!?!?