Just beat the game for the first time... on practice mode.
 ChessRogue 0.3.0 game score  You played at practice difficulty. You reached level 25 and at 20080605 21:26:43 you were victorious!
Along the way you captured: Pawns : 509 @ 1 point Sergeants : 110 @ 2 points Bishops : 138 @ 3 points Generals : 53 @ 2 points Mantraps : 93 @ 3 points Lances : 38 @ 3 points Knights : 66 @ 3 points Eagles : 41 @ 4 points Rooks : 48 @ 5 points Tigers : 29 @ 6 points Queens : 10 @ 9 points Crocodiles : 7 @ 9 points Your longest continuous run of captures was 8 moves
From this you gained 12 powers and 10 superpowers!
You captured the Archbishop (+30 points) You also scored 1851 bonus points!
Your score was then doubled for winning!
Your total score was therefore 5202 points. 
Wow. Even with the game telling me exactly when I was about to commit suicide, that was still hard as hell. I shudder to think of how many times I will die in the actual game.
Powers were fun, though. Teleportation, attacking all adjacent squares simultaneously, capturing pieces between you and your destination, the Archbishop's Staff... very very fun. Once you actually get them, that is.
