Knight's Tour

The classic chess puzzle: move a knight around the board so that it lands on every square once. First walk the knight freely to the square where you want to begin. Then trace each knight's move in three single steps: two squares in one direction and one at a right angle, or one and then two. Any other pattern is refused and the knight returns to where the move began; so is a step off the board or onto a visited square. Each square the knight lands on gets a ball and adds a point. The starting square stays open, so the knight may return to it: 63 is a full tour, 64 a closed tour that ends where it began. The game ends when the knight has no move left, and the best score is kept.

Controls: The stick moves the knight one square at a time. The left button starts the tour from the knight's square, and the right button takes back the steps of a move half traced. Either controller works.

ColecoVision version credited in the source to Claude (an AI made by Anthropic) for Amy Studio, in Amy, the language by Amy Bienvenu, 2026: a reimagined adaptation of the published rules. From Ahoy! No. 23, November 1985, page 73: original Commodore 64 program by Richard Ramella. Published in the magazine as "The Knight's Tour". This is a modern homebrew adaptation, not a commercial Coleco release.