Move every disk to the goal peg without putting a larger disk on a smaller one.
Three pegs and a stack of disks create a focused planning challenge: move the full stack to the goal peg while keeping every larger disk below a smaller one.
Select a peg to lift its top disk, then select a legal destination. The move counter compares your route with the minimum target: 7, 15, or 31 moves.
The legal-destination cue, Hint, and Undo make the next decision visible without moving a disk for you.
Easy, Medium, and Hard use three, four, and five disks with minimum targets of 7, 15, and 31 moves.
The classic rule set stays visible while legal-destination cues and recovery controls make experimentation understandable.
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