Skip to main content

Version 9 step 3

Not many news:

  • Analisys of a game:
    • Option to indicate format points/depth/time (Johannes Reimers)

  • Tournaments between engines:
    • Added option to set initial position from Norman Pollock openings-database (40H-Openings)

  • Playing against any engine:
    • Thougth of engine, more information. (Michele)
Info: Score | depth/sel. depth | time | nodes/nodes per second

  • And some bugs fixed, thanks to Stolcius, Phillip Watts, ...


  1. Hi, Lucas,
    option "Thougth of engine" appears truncated on the panel's bottom.

    Best regards,

    1. Hi,
      It needs a greater box, and there is two options, or you can do greater the pgn panel, or when configuring add some pixels to the Box height value.

    2. I'm afraid I dont' understand: do you mean resizing the chessboard window?

      I've tried it: it doesn't work...

      The box is incapsulated into the layout frame: resizing the chessboard window doesn't affect layout frame at all.

      Best regards,

    3. Two options:

  2. When viewing a PGN, the scroll wheel can be used to quickly go through the game. The functionality seems inverted ( ie . scrolling up moves forward in the game, and scrolling down moves backwards) - is this the intended function?

    1. Yes it is intended.
      When focus is on pgn-table, then info goes top-down.
      When focus is on board, then info goes down-top.
      This is one solution.

    2. I didn't notice that.. perfect! So the program has no flaws :-)

      thank you.


Post a Comment

Popular posts from this blog

LINUX - First binary version

The first official binary version of Lucas Chess on Linux has just been released. It has only been made possible by the great work done by Laudecir Daniel , choosing and compiling the 67 engines, as well as laying the groundwork so that the binaries can be more widely used and others such as shortcut creation, installation scripts, ...... In addition,  Graham O'Neill  has provided Linux-specific drivers for several digital boards. This version has two limitations : 64-bit Linux OS only. Minimum GNU libc version: 2.26 (ldd --version shows it) Installation has been made as simple as possible: The installer is a .sh file, generated with the  makeself  tool, and can be downloaded from: SourceForge , GitHub The file must be run from a terminal with user permissions only: sh ./ Launches a GUI with very basic options: Install: Installs in LucasChessR folder inside the home user folder. Generates a shortcut in Applications > Games Launch the application at the end

R 1.06 Maia

 This update contains a major improvement with the inclusion of Maia. Maia is a neural network chess engine, created with the purpose of making her movements as human as possible. The Maia creation team has prepared 9 versions, from 1100 to 1900 of elo, and thus they have been included in Lucas Chess. You have all the information about Maia at:

Setting analysis parameters

Since version 2.04, you can change the parameters used by the program to determine whether a move is good or bad and also the elo calculated for an analyzed game. The parameters are as follows: limit_score Default value: 2000 Minimum value: 1000 Maximum value: 4000 Data type: integer Determines the score in centipawns from which the position is considered to be totally won, that the probability of winning is 100%. curve_degree Default value: 50 Minimum value: 1 Maximum value: 100 Data type: decimal percentage Expresses the correlation between the score in centipawns and the probability of winning/losing. It associates -limit_score with 0 and +limit_score with 100. Curve formula created based in  python-chess/Engine/Score/wdl    difmate_inaccuracy Default value: 3 Minimum value: 1 Maximum value: 99 Data type: integer If the difference between the best move and the move made means going