Test your planning ability

Rearrange the coloured balls to match the goal in the fewest possible moves. It sounds simple — but solving optimally takes real forethought. Your moves, planning time, and efficiency are all measured.

Your name (for the leaderboard)

How it works

Three pegs hold up to 3, 2, and 1 balls.
Drag a ball to another peg — or tap a ball, then tap a peg.
Only the top ball of a peg can move, and a peg can't overflow.
Match the goal using as few moves as possible. Each puzzle has a known minimum.

Choose a stage

Problem 1 of 15

Warm-up

2

target

0

moves

0.0s

planning

0.0s

total

Goal

Planning… Your workspace

Session score

0

Per-problem breakdown

“Excess” = moves beyond the known minimum. Planning time is the delay before your first move — a key marker of forethought.

Save to leaderboard

Leaderboard

Ranked by puzzles solved, then fewest moves, then total time. “Avg plan” and “Avg total” are the mean planning and total time per puzzle.

Leaderboard admin

🔒

Enter admin password

Manage the leaderboard: remove players, end the current board, or start a new season.