Goal

Make the board look like the GOAL card. Tap a peg to pick up its top ball, then tap another peg to put it there. Pegs hold 3, 2 and 1 balls. Each puzzle has a par — the fewest moves it can be done in — and doing it in exactly that many is a perfect plan.

Levels

• 2 perfect plans at a level moves you up; 2 over-par puzzles in a row move you down.
• Par grows from 2 moves to 7; levels 7 and 8 add a fourth ball (pegs of 4, 3 and 2).
• Tapping a ball's own peg puts it back — that isn't a move.

Scoring

A perfect plan earns 10 + 5 × par. Over par still finishes the puzzle, for 2 × par.

Planning Ahead

Based on the Tower of London, the classic test of planning: seeing several steps ahead, and noticing when the obvious first move is the wrong one.