Aqua is a showcase world. It uses five piece types in puzzles designed to highlight how they work together. Where other worlds lean on a specific mechanic, Aqua leans on composition. A level might pair a king with two bishops, testing whether you can make limited local control complement long diagonal sweeps.
Aqua uses five piece types, everything but the pawn, in balanced combinations that show how different pieces complement each other. No mechanic twist, just boards that reward understanding every piece.
Five piece types in balanced, complementary puzzles
Consistent 6x6 to 8x8 boards with 1-4 pieces. Difficulty is in the piece combinations rather than board complexity.