Castle Wall [CAWA-4-009P]
Mirroring Tiles [MIRT-4-004P]
Renkatsu [RNKA-4-009P]
Girandola Sudoku [GIRA-4-004P]
Douieru [DOUI-4-009P]
Lighthouses [LGHT-4-009P]
Sudoku XV [SUXV-4-009P]
Dominion [DION-4-009P]
Ripple Effect [REFF-4-009P]
Sashikazune [SAZU-4-004P]
Anti-King Sudoku [KING-4-004P]
Futoshiki [FUTO-4-009P]
Border Block [BORB-4-009P]
Corner Loop [CORN-4-004P]
