BikJump 2.0

[abik]

BikJump v2.0 is available. The mailbox representation of the first generation (v1.x) has been replaced by a home-brewed bitboard representation with corresponding move generator and evaluation function. In addition, the source has undergone a major refactoring. The UCI engine can be downloaded at http://www.aartbik.com/MISC/chess.html for the following platforms:

(1) 64-bit Windows
(2) 32-bit Windows
(3) 64-bit Linux
(4) 64-bit MacOS

Please note that the logo has changed slightly, so kindly update these in engine summaries.

The 64-bit versions exhibit highest performance (so use these if you can), but even the 32-bit improved somewhat in the raw nodes-per-second rate over the first generation. The playing strength seems to have improved, although I must admit that I had hoped for much more gains from this major rewrite than I have observed in initial testing. It is time to release this next generation, however, if only to get some free time back again

Some ongoing thoughts on BikJump development can be found on my blog at http://aartbik.blogspot.com/.

[Olivier Deville]

Hi Aart

Well done BikJump updated in the ongoing OpenWar test.

Olivier

[gerold]

BikJump v2.0 is available. The mailbox representation of the first generation (v1.x) has been replaced by a home-brewed bitboard representation with corresponding move generator and evaluation function. In addition, the source has undergone a major refactoring. The UCI engine can be downloaded at http://www.aartbik.com/MISC/chess.html for the following platforms:

(1) 64-bit Windows
(2) 32-bit Windows
(3) 64-bit Linux
(4) 64-bit MacOS

Please note that the logo has changed slightly, so kindly update these in engine summaries.

The 64-bit versions exhibit highest performance (so use these if you can), but even the 32-bit improved somewhat in the raw nodes-per-second rate over the first generation. The playing strength seems to have improved, although I must admit that I had hoped for much more gains from this major rewrite than I have observed in initial testing. It is time to release this next generation, however, if only to get some free time back again

Some ongoing thoughts on BikJump development can be found on my blog at http://aartbik.blogspot.com/.

Thanks Abik. Nice program.
Nice layout of your blogspot.

Best to you,

Gerold.

[abik]

Thanks to Olivier who kindly reported a castling while in check bug!



I have updated all versions (Windows, Linux, MacOS). Please update. The engine identifies itself as v2.01 but, except for the bug fix, is otherwise identical to v2.0.