KnightX Winboard engine released

[chrisjly]

v2.8, May 2021
Tree searching improvements
Positional evaluation improvements
Fixed a crash that occured when the "logfile" option was activated

http://technochess.free.fr

[chrisjly]

v2.91, September 2021
Fixed two regressions in v2.9
Positional evaluation improvement
Tuned search parameters and eval parameters

http://technochess.free.fr

[chrisjly]

v3, October 2021
Tree searching improvements
Positional evaluation improvements

http://technochess.free.fr

[chrisjly]

v3.1, November 2021
Positional evaluation improvements in rooks endings, knights endings
Increased search selectivity, modified evaluation of backward pawns
Optimisation of the evaluation, better search speed
Tuned search parameters and eval parameters

http://technochess.free.fr

[chrisjly]

v3.2, February 2022
Tree searching improvements
Positional evaluation improvements
Tuned search parameters and eval parameters
+40 elo points (game in 2mn+1s)

http://technochess.free.fr

[chrisjly]

Knightx v3.3, June 2022
+70 elo points

http://technochess.free.fr

[chrisjly]

Knightx v3.4, July 2022

+40 elo points (estimated)
Sends the principal variation in algebraic notation in the XBoard/Winboard output window (instead of coordinate notation)

http://technochess.free.fr

[Roland Chastain]

Downloaded. Thank you!

[chrisjly]

v3.6a, December 2022
+109 elo vs knightx 3.5
Bug fixes in the capture search transposition table, the root search, the null move pruning conditions
Passed pawns evaluation, King safety evaluation for uncastled king
The Windows executable is now compiled with the Mingw-w64 Linux cross compiler
The 3.6 version has been used in one CCRL tournament and has not been released

http://technochess.free.fr

[chrisjly]

Hello,

A new version of KnightX is available at http://technochess.free.fr

Regression tests v3.8 vs v3.7b (136 games): +51 Elo

Christophe