WARNING: Please only use GitHub issues for BUG REPORTS and FEATURE REQUESTS
Lengthy algorithm discussions etc are fine too, but also consider creating a wiki page or a page on website.
If you are filing a bug report, please fill the fields below.
Otherwise, feel free to remove this text and type a free-form issue as usual.
BUG REPORT
Describe the bug
A clear and concise description of what the bug is.
Steps to Reproduce
Expected behavior:
Observed behavior:
Lc0 version
Include Lc0 version/operating system/backend type.
Lc0 parameters
Command line, if not default.
Include screenshot of configuration window, if using through GUI.
Hardware
Number and model of GPUs that you use.
Amount of RAM in the system
Other specs (CPU etc) if it may be relevant
Lc0 logs
Please attach Lc0 logs. Here is how to produce them (e.g. for D:\logfile.txt):
Set the following UCI option:
Logfile: D:\logfile.txt
OR
pass this as a command line argument:
--logfile=D:\logfile.txt
OR
Create lc0.config file in the same directory as your lc0.exe is located, with the following contents:
logfile=D:\logfile.txt
After running Lc0, D:\logfile.txt should appear.
Chess GUI logs
If there is a problem with particular GUI (cutechess/arena/etc), also attach logs of that program.
WARNING: Please only use GitHub issues for BUG REPORTS and FEATURE REQUESTS Lengthy algorithm discussions etc are fine too, but also consider creating a wiki page or a page on website.
Here is what to do with other types of questions:
If you are filing a bug report, please fill the fields below. Otherwise, feel free to remove this text and type a free-form issue as usual.
BUG REPORT
Describe the bug A clear and concise description of what the bug is.
Steps to Reproduce
Expected behavior: Observed behavior:
Lc0 version Include Lc0 version/operating system/backend type.
Lc0 parameters Command line, if not default. Include screenshot of configuration window, if using through GUI.
Hardware
Lc0 logs Please attach Lc0 logs. Here is how to produce them (e.g. for D:\logfile.txt):
Set the following UCI option: Logfile: D:\logfile.txt OR pass this as a command line argument:
--logfile=D:\logfile.txtOR Create lc0.config file in the same directory as your lc0.exe is located, with the following contents:After running Lc0, D:\logfile.txt should appear.
Chess GUI logs If there is a problem with particular GUI (cutechess/arena/etc), also attach logs of that program.