NN666Tier

Move a stack of numbered disks between pegs, one legal move at a time. Plan ahead, discover the repeating pattern, and compare your result with a clear step target. THREE-PEG CHALLENGES Choose a tower from 3 to 9 disks. The game shows the theoretical minimum of 2ⁿ − 1 moves, while the first three-disk puzzle introduces the pattern gradually: move the upper disks aside, uncover the largest disk, and rebuild the stack. FOUR-PEG VARIANTS Complete the six-disk three-peg challenge to unlock four-peg puzzles with 4, 5, or 6 disks. Each puzzle starts on Peg A and lets you choose a different destination peg. Verified reference counts are shown for full-tower transfers; they are presented as references rather than a universal formula. PLAY YOUR WAY Tap an exposed disk and a destination peg, or drag the disk directly. Legal destinations are outlined, and an illegal move leaves the board and move count unchanged. Undo, redo, restart, pause, and a running timer help you work through each position. Practice mode adds a next-move nudge that points to a peg without playing the move for you. YOUR PROGRESS See your move count, target, completion time, and undo count at the finish. Personal records, the current puzzle, timer, move history, and preferences are saved locally on your device. Choose drag controls, a light or dark appearance, optional move sounds, restrained motion, disk numbers, and legal-move outlines. The puzzle works offline and does not require an account. Your game progress stays in app storage on this device.