Achieve an ELO of 2500 or a Grandmaster Pure Chess rating.
Complete Tournament mode on all three difficulties.
Deliver checkmate where the king is blocked on both sides by his own rooks.
Solve 100 mate problems.
Win a game online.
Perform an En Passant during any full game.
Capture 100 pieces.
Perform a castling move on the queenside during any full game.
Deliver a check by two pieces at the same time.
Complete all the tutorials.
Win an exhibition game against the computer.
Put an opponent in check in an exhibition game.
Advance a pawn to the eighth rank in an offline game.