Sometimes when a tutor suggest a better move clicking on There are XXX best moves -> Show tutor just ignored.

I made this changes (marked with # <--) to GestorEntMaq.py to see wtf is going on:

                    if siTutor:
                    
                        sys.stderr.write("TUTORR!") # <--
                    
                        tutor = Tutor.Tutor(self, self, jg, desde, hasta, False)

                        if self.aperturaStd:
                            liApPosibles = self.listaAperturasStd.listaAperturasPosibles(self.partida)
                        else:
                            liApPosibles = None
                        sys.stderr.write("1") # <--
                        if tutor.elegir(self.ayudas > 0, liApPosibles=liApPosibles):
                            sys.stderr.write("2") # <--
                            if self.ayudas > 0:  # doble entrada a tutor.
                                sys.stderr.write("3") # <--
                                self.reponPieza(desde)
                                self.ayudas -= 1
                                desde = tutor.desde
                                hasta = tutor.hasta
                                coronacion = tutor.coronacion
                                siBien, mens, jgTutor = Jugada.dameJugada(self.partida.ultPosicion, desde, hasta, coronacion)
                                if siBien:
                                    sys.stderr.write("4") # <--
                                    jg = jgTutor
                                    self.setSummary("SELECTTUTOR", True)
                        else:
                            sys.stderr.write("self.ayudas: " + str(self.ayudas) + "\n") # <--
                            sys.stderr.write("self.aperturaStd: " + str(self.aperturaStd) + "\n") # <--
                            sys.stderr.write("liApPosibles: " + str(liApPosibles) + "\n") # <--
                        sys.stderr.write("5") # <--
                        if self.configuracion.guardarVariantesTutor:
                            sys.stderr.write("6") # <--
                            tutor.ponVariantes(jg, 1 + self.partida.numJugadas() / 2)

                        del tutor
                        sys.stderr.write("7\n") # <--

Here is the result:

TUTORR!1234567
TUTORR!1234567
TUTORR!1234567
TUTORR!1234567
TUTORR!1234567
TUTORR!1self.ayudas: 2
self.aperturaStd: None
liApPosibles: None
567

So in a normal case it went through all the branches, in case of error it breaks with self.aperturaStd==None. I have no idea what that means.

File "Lucas.py", line 44, in import Code.Init File "./Code/Init.py", line 4, in from Code import Util File "./Code/Util.py", line 17, in import scandir ImportError: No module named scandir

Scandir issue is resolved.

Can someone help me out in this. I tried installing Lucaschess in ubuntu 18.04 and this error came up. python Lucas.py gives me this now:

Traceback (most recent call last): File "Lucas.py", line 44, in import Code.Init File "./Code/Init.py", line 5, in from Code import Procesador File "./Code/Procesador.py", line 6, in from Code import AperturasStd File "./Code/AperturasStd.py", line 1, in import LCEngine4 as LCEngine ImportError: No module named LCEngine4

(Tenative) Steps to reproduce:

with the tutor on, make a move (or perhaps it has to be one that the tutor faults); take the move back (and perhaps one needs to do this not via the tutor pop-up window, but in the normal fashion); the tutor then re-analyses the move, or at least something stalls the system.

Windows 8.1. Lucas Chess 11.07a

Screenshot (in case it is of use):

Hi, thanks for the great work!

I have managed to install 11.04a on Linux 32-bit (with some issues, see below). The game starts up and I can do options and trainings. However it seems to hang immediately when a chess engine is used:

1. Play against Kids engine: Hangs (Black Hand) after choosing white or black, for any engine chosen.
2. compete: engines Roccinante, tutor mcbrain or stockfish: first 2-3 moves are alright but as soon it gets out of the book it hangs (Black hand). Checking the process list I never found any process of a chess engine running. Maybe loading of engines fails. Maybe this has to do with the issues I had during Linux 32-bit installation:

My Installation installation process & issues:

1. System is an 32-bit ubuntu derived distro, modern (2017) kernel etc.
2. I followed the advice given in Linux/LinuxInstallation.md. However that file seems to be truncated on the 64-bit explanation and has no explanation on 32 bit at all.
3. I copied all files to /usr/local/share/lucaschess. In ./Engines I deleted all windows and linux 64 bit folders. BTW: In the linux32 bit folder, in cheng, there seems to be an 64-bit engine only.
4. I did the chmod 777
5. I ran the package install xlinux_install.sh . There I had two observations: a) it seems that pip should be called without sudo - with sudo there are warnings about different user and access rights b) the package python-chess was not available as an apt package. Actually it is a python module and I was able to identify it on e.g. pypi.org and install it using 'pip install python-chess'
6. I started using Linux/xlucas.sh . I got the runtime error in DBgames.py xpv2pgn no member of LCEngine. To fix this I re-compiled LCEngine and libirina doing the steps indicated for 64-bit in LinuxInstallation.md plus running xcython_linux.sh:

• cd LCEngine/irina
• ./xmk_linux.sh
• cd LCEngine
• ./xcython_linux.sh #copies over to Engines/_tools/Linux32..

7. After this lucaschess started up without any complaints, however it hangs as soon as an eninge is required.

. . even when I have set the opening to 'undetermined'. The computer always opens with nf3 or, as black against e3, always plays Nf6. The problem occurs with the Deep Tonga engine and one other engine that I tried.

Recently upgraded my system and tried installing lucaschess again.

I seem to get the error when i run the command bash xmk_linux.sh. This is the error

lc.c: In function ‘pgn2pv’:
lc.c:169:13: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  169 |             if( promotion ) sprintf(pv, "%s%c", pv, promotion);
      |             ^~
lc.c: In function ‘getMove’:
lc.c:211:5: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  211 |     if( move.promotion ) sprintf(pv, "%s%c", pv, tolower(NAMEPZ[move.promotion]));
      |     ^~
lc.c: In function ‘getMoveEx’:
lc.c:255:5: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  255 |     sprintf(info, "%s%c%c%c", info, promotion, castle, en_passant);
      |     ^~~~~~~
lc.c: In function ‘toSan’:
lc.c:288:13: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  288 |             sprintf(sanMove, "%s=%c", sanMove, toupper(NAMEPZ[move.promotion]));
      |             ^~~~~~~
lc.c:306:9: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  306 |         if( is_amb_ah ) sprintf(sanMove,"%s%c", sanMove, POS_AH[move.from][0]);
      |         ^~
lc.c:307:9: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  307 |         if( is_amb_18 ) sprintf(sanMove,"%s%c", sanMove, POS_AH[move.from][1]);
      |         ^~
lc.c:308:9: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  308 |         if(move.capture) sprintf(sanMove,"%sx", sanMove);
      |         ^~
lc.c:309:9: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  309 |         sprintf(sanMove,"%s%s", sanMove, POS_AH[move.to]);
      |         ^~~~~~~
lc.c:316:13: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  316 |             sprintf(sanMove,"%s#", sanMove);
      |             ^~~~~~~
lc.c:318:13: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  318 |             sprintf(sanMove,"%s+", sanMove);
      |             ^~~~~~~
board.c: In function ‘board_fen’:
board.c:250:5: warning: passing argument 1 to restrict-qualified parameter aliases with argument 3 [-Wrestrict]
  250 |     sprintf(fen, "%s %d %d", fen, board.fifty, board.fullmove);
      |     ^~~~~~~
util.c: In function ‘get_ms’:
util.c:53:5: warning: ‘ftime’ is deprecated [-Wdeprecated-declarations]
   53 |     ftime(&buffer);
      |     ^~~~~
In file included from util.c:2:
/usr/include/x86_64-linux-gnu/sys/timeb.h:39:12: note: declared here
   39 | extern int ftime (struct timeb *__timebuf)

Not sure what i have done wrong and it would be nice if somebody can help.

While doing some tactics I looked at saving the puzzle via Options. No I can no longer get into tactics. Selecting 'Play' returns me to the main screen. Can I fix this without restarting?

I now this was a coincidence. The supplied tactics file was incorrect.

I'm not sure if this is specific to openings training, but Kibitzers generally don't work in this mode - I had some luck using a kibitzer based on Stockfish, but not with others, e.g Komodo 32bit. Once I add first kibitzer and it works (stockfish), it opens a kibitzer window, but then when I add kibitzer (komodo), it doesn't show and also the first one disappears. Restarting lucachess doesn't help, I cannot start any of the created kibitzers in openings training. I have to remove the definitions of both kibitzers using Kibitzer -> Remove...

In Lucas Chess 11.17, and unless I make some mistake, if I must move my King - because of check, say - and can move him to only one square, then, upon touching the King, the computer moves him. I would like an option to disable that automatic moving.

For now tracebacks are flushed to disk only after you close the program. It really inconvenient for catching bugs. All tracebacks should be saved immediately. When I played with https://github.com/lukasmonk/lucaschess/issues/29 I had to make some changes to Init.py.

DEBUG = False
VERSION = "10.11"

import os
import sys

from Code.Constantes import *

if DEBUG:
    prlkn("DEBUG " * 20)

from Code import VarGen
from Code import Procesador
from Code import Sonido

from Code.QT import Gui

class loghelper:
    def __init__(self, logname):
        self.logname = logname
    def write(self, buf):
        ferr = open(self.logname, "at", 0)
        ferr.write(buf)
        ferr.close()

def init():
    if not DEBUG:
        sys.stderr = loghelper("bug.log")

    mainProcesador = Procesador.Procesador()
    mainProcesador.setVersion(VERSION)
    runSound = Sonido.RunSound()
	
[...snip...]

And remove this
    if not DEBUG:
        if okFerr:
            ferr.close()

[...snip...]

But I'm really bad at Python so I guess you can invent better solution.

Sadly, the native Linux version runs much worse on my system (Mint 18 Cinnamon) than does the Windows version under Wine (on the same system).

For, on the native version:

1. configuration windows open behind the main one;
2. the program does not restart when it is meant to;
3. startup is slow and indeed in general the problem is slow (why? why slower than under Wine?);
4. I experienced a hang when it was the computer's move during a game.

On Lucas Chess 11.15b (note: it would be useful were the version information available from the program mid-game - call that problem '0'), (1) to set up a position and play it seemingly one needs to do: tools -> create your own game -> arrange position -> (wonder what to do, and) -> Utilities -> Play game -> choose colour.

(2) When one starts playing, the animation speed seems to have changed from what it normally is (at least if one has changed the default - and one presumes, though falsely, global animation speed). This is jarring.

Please note finally that (3) trying to adjust the starting position, after one has started playing, if unintuitive and fiddly. One problem (3a) is a path box which one expects to be able to type into, but which, upon being clicked, opens a finder window. Another problem (3b) is that to save changes one needs to make them and then manage to locate a rather small, somewhat hidden little save icon.

Finally (4) somehow I ended up with three windows each showing their own board. At this point I was boggled and closed the program (by finding and closing all the windows).

All in all: a lot of 'papercuts' here. Indeed 4 is more than a papercut.

I find this feature in lichess so simple yet so helpful for learning ... I'm currently practicing with 'create your own game' but I think this feature would be more helpful for beginners like me

In the situation shown below, and at other times in the same game, the wait pointer - the hand - shows when it is my move.

Now admittedly perhaps some tutor option I choose caused this. For, when the options are displayed, I cannot see them. Screenshot:

I suppose resetting my theme to default would fix that latter problem.

I am happy to provide further details.

LucasChess 11.18.

The Initial Moves window - to give details only about that (but see also #130) is rather small on my main PC - it looks like this:

(I show that Initial Moves window against something other than the main LucasChess window, because when I open the Initial Moves window, the main window disappears.)

Also, on a laptop (with x2 HiDPI scaling, if that matters, and running LucasChess under Wine), the Initial Moves window is, if anything, slightly smaller! The smallness of the window make it hard to use.

Thank you for LucasChess.

In many chess GUIs, like in Arena, you get to see the live output of the engine as it's analyzing. In Lucas Chess, you're only able to see the results after manually running it for a certain depth.