CT800 V1.43 released

[Ras]

A new release V1.43 of the CT800 engine is available, about 50 Elo stronger. It might even take a shot at the 2500 CCRL bar.

• Added late move pruning near the main search leaves.
• Simplified quiescence search.
• Quiescence delta pruning cuts off remaining moves if the current one has no hope of improving alpha.
• The en passant square is cleared before a null move search and restored afterwards.
• Null move search is skipped if the null depth is zero and the static node evaluation below beta.
• Always reward the right to move, not only in the opening.
• Added hash and PV move priorisation in early move generation.
• Improved bishop corner capture with enemy pawn.
• Fixed winning KBN:K.

UCI version:

• More strength throtteling at the low end around 1000 Elo.

Microcontroller version:

• Enabled multi-page PV display in "pretty print" format.
• Changed the dialogue display order from OK/CL to CL/OK.
• Fixed a bug where undoing moves and then entering a new position would not clear the move list in the main screen.

Download: https://www.ct800.net/download.htm

[Gabor Szots]

A new release V1.43 of the CT800 engine is available, about 50 Elo stronger. It might even take a shot at the 2500 CCRL bar.

Thank you Ras, I hope it will.

Oh, where is the file? What I can see is v1.42.

[sovaz1997]

Congratulations on the new version, a good increase in the strength of the game!

[amanjpro]

Congrats Ras, don't forget to submit your binary for next season's ZaTour

[AdminX]

A new release V1.43 of the CT800 engine is available, about 50 Elo stronger. It might even take a shot at the 2500 CCRL bar.

Thank you Ras, I hope it will.

Oh, where is the file? What I can see is v1.42.

Same here ...

[Scally]

A new release V1.43 of the CT800 engine is available, about 50 Elo stronger. It might even take a shot at the 2500 CCRL bar.

Thank you Ras, I hope it will.

Oh, where is the file? What I can see is v1.42.

Same here ...

+1

[AdminX]

A new release V1.43 of the CT800 engine is available, about 50 Elo stronger. It might even take a shot at the 2500 CCRL bar.

Thank you Ras, I hope it will.

Oh, where is the file? What I can see is v1.42.

Same here ..., but if you edit the link for 1.42 and change it to 1.43 you can grab it!

https://www.ct800.net/download/ct800-v1.43.zip

[Ras]

Oh, where is the file? What I can see is v1.42.

Uh? The download page has V1.43, but maybe there's a caching problem. Here's the direct V1.43 release page: https://www.ct800.net/sw_release_v143.htm

[sovaz1997]

Congrats Ras, don't forget to submit your binary for next season's ZaTour

Interesting tournament series, I also send a form for participation)

[Carlos777]

Oh, where is the file? What I can see is v1.42.

Uh? The download page has V1.43, but maybe there's a caching problem. Here's the direct V1.43 release page: https://www.ct800.net/sw_release_v143.htm

Thanks Ras for this new version, I will include it in my tournaments.