Hanoi Hues

Move top discs only to the next pillar clockwise, never putting a larger disc on a smaller one. First use A→B→C→A to assemble the tower on C. This unlocks D and changes the ring to A→B→C→D→A; deliver the tower there. Free Undo supports exploration. No timer or fail state: seek a shorter route on replay.

Tap controls, or Tab then Enter/Space. R restarts. Every action is turn-based; take time to plan.

Hanoi size constraint with color-tower path unlocking; calm exact puzzle.