TieredTransit

Move a numbered stack between columns, one careful transfer at a time.

Learn the layered pattern, plan around limited space, and compare your route with a clear move reference. The first guided puzzle helps you discover why smaller disks must move aside before a larger disk can travel.

THREE-COLUMN CHALLENGES
Work through stacks of increasing size. Each standard challenge shows the theoretical minimum of 2ⁿ − 1 moves for a complete transfer. Your move count and elapsed time make it easy to try again and refine your plan.

FOUR-COLUMN VARIANTS
After completing the six-disk challenge, explore transfers with an extra temporary column. Each level shows its specified start and goal columns along with a reference move count derived from a verified transfer plan.

PRACTICE AT YOUR PACE
Explore selected three-column puzzles without a move target. Ask for a hint to see one recommended disk and destination; the hint never moves a disk for you.

MAKE EVERY MOVE YOURS
Select a top disk and a destination column, or drag the disk when drag controls are enabled. Clear outlines mark useful destinations. Illegal moves leave the board unchanged. Undo, redo, restart, and pause are available during play.

YOUR PROGRESS STAYS LOCAL
Continue an unfinished board with its timer and move history. Personal challenge records, preferences, and guided-puzzle progress are stored on your device. The puzzle can be played offline without an account.