I've just discovered that all commands apard from ones for move typing (such as e4, nf3 etc.) used when playing (such as 'l', 'c' and so on) are case sensitive.
I had capslock key toggled on accidentally before the game started and during the game i couldn't use these commands, i could type moves only, the outpood for any other command was, say, 'invalid move: c' if it was my turn or 'this is not your turn' in other case. I found out that the key had been pressed only after i finished the game :)
By no means this is important subject, but it might be useful to make all commands insensitive,
or may be simpler - just inform accessibility users that some of them are sensitive. For example, such info may be added at the 'commands' section of the page.
I had capslock key toggled on accidentally before the game started and during the game i couldn't use these commands, i could type moves only, the outpood for any other command was, say, 'invalid move: c' if it was my turn or 'this is not your turn' in other case. I found out that the key had been pressed only after i finished the game :)
By no means this is important subject, but it might be useful to make all commands insensitive,
or may be simpler - just inform accessibility users that some of them are sensitive. For example, such info may be added at the 'commands' section of the page.