Brain training Puddle JumpTrace the puddle jumps ! FLASH CalculationLet's try flash calculation ! Drunk WalkingTrace the men's footprints ! Stepping-StonesTrace the boy and girl's footprints ! Leaf PeepingTrace the boy and girl's footprints ! Seeside FootprintsTrace the lovers' footprints! No-Change Cash Desk 2Trace the coins! Match Puzzle (Complicated ver.2)Mathematical puzzle using matches. Complicated ver No-Change Cash DeskTrace the coins! Fractional Match 2Puzzle using matches. Fractional number version! Frog JumpingTrace the frog jumping! Panel Calculation DivisionNumerical panel puzzle. Toilet ConciergeOpen unoccupied toilets ! Panel Calculation MultiplicationNumerical panel puzzle. Match Puzzle Division 2Puzzle using matches. Division version ! Match Puzzle (Residue ver.)Puzzle using matches. Residue version ! Matrix CalculationMake correct numerical formulas! Match Puzzle (Complicated ver.2)Puzzle using matches. Complicated version 2 ! Next>>