Many thanks, Gerardo!

The levels A1-B8 are clear (even in Spanish), so I'd need only the meaning of the other ones.
Edit: Ok, now I know the other levels, too:
c1-c8 ... beginner levels with reduced strength
d1-d8 ... search depth 1-8 plies
e1-e8 ... mate in 1-8 moves

And for position mode the most important thing would be, how to clear the board after entering the setup mode with POSITION
(I guess setting up the pieces will work as in other engines).

Regards,
Franz

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