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]
Archipelago [ARCH-4-004P]
Multiple Snakes [MSNK-4-004P]
Even-Odd Sudoku [EOSU-4-004P]
Aqre [AQRE-4-009P]
