Skip to main content

Version 9.08b: Fixed elo engines + new language: Greek

New language added: Greek, thanks to Nick Delta

Bug fixed when playing against fixed elo engines, thanks to elvirais and EscherehcsE from to help me to find the bug.

Version installable: InsLucasChess908b.exe
Version portable: LucasChessPortable908b.exe


  1. Hi, Lucas,
    I wonder if it is possible to choose a range of move numbers while creating "Find best move" training set from mass analysis. It would be very good to be able to generate exercises from, say, only middlegame positions (moves #7 throug #20, for example), and skip endgame positions, or vice-versa.
    Or it could be one of the "Generate new trainigs" utilities in Find the best moves. In addition to the exisiting "divide" and "extract" options, we could generate a subset based on move numbers. Shouldn't be very hard, right?
    Thanks for all the effort!

  2. In Create a Game, I click "help to move". Is there a way to copy the PGN of the moves suggested by the engine? I can only see copy FEN. Thankz in advance.

    1. I have used the easy way, using analysis processes, then as the move is not done, it is not possible to add other moves as variations.
      You must move and analyze again.

  3. Hi, how can I convert the Tactics by UNED chess school to pgn? I want to merge them as one.

    1. I´ll try to include in Database Positions option, the possibility to import from fns files.

    2. Just checking - I would also like to be able to access all of the UNED tactics as one mixed file. Is this possible?

    3. Manually, exec cmd to create a terminal, go to program directory (Program Files (x86)/LucasChess) subfolder Trainings\Tactics by UNED chess school, then copy *.fns uned.fns, then cut that file and copy in the folder:
      ..\..\UsrData\Personal Training\

    4. Got it - thank you very much!

  4. Hello Lucas,
    I was wondering if you can add some kind of "alert" when there is a tactics
    for example in :
    after your opponent make a move : it alerts you,
    Thank you.

    1. Tactics ?
      You could use kibitzers to know which is the state of the game.
      Probably I don´t understand, explain me more if so.


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