Defeat the White Knight Boss.
Destroy a White Queen.
Get a attack recharge upgrade.
Defeat the White Pawn Boss.
Get +100 of Damage Bonus.
Get +50 of Damage Bonus.
Get a health upgrade.
Find a Black Piece.
Destroy a White Rook.
Destroy a White Bishop.
Destroy a White Knight.
Destroy a White Pawn.
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