How to build a computer analysis, using either a CECP or a UCI engine

[Roland Chastain]

Hello everybody.

I would like to create a GUI displaying a computer analysis for a game, like the one provided by lichess (for example).



Which commands could I send to an engine, in order to get informations like relative advantage of each player?

Would be interested both by CECP and UCI solutions.

Regards.

Roland

[hgm]

In UCI you would send a comment 'go infinite' after setting up the position to analyse with the usual 'position ... moves ...' command. Terminate with 'stop' before sending any other commands.

In CECP the command is 'analyze', and you terminate that with 'exit' (which brings you back into force mode). In CECP it is allowed to send 'setup' commands, moves and 'undo' during the analysis, after which the engine starts searching the new position.

In both cases the 'thinking output' is as usual. Meaning that in CECP you might need to send a 'post' command to make sure it will be given.