Tracks Puzzle Online

Tracks is one of the classic one-player logic games in Simon Tatham's Portable Puzzle Collection. Fill in the railway track according to the clues.

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Preparing the game board and controls.

Game Objective

Complete one railway route from A to B. The numbers above and to the right of the grid tell how many squares in each column or row must contain track. The route can go straight or turn 90 degrees, but it cannot split, cross itself, or make extra disconnected pieces.

Fill in the railway track according to the clues.

How to Play

Left-click the edge between two squares to draw track between them.
Right-click an edge to mark that no track can pass there.
Left-click inside a square to mark that it must contain track, and right-click inside a square to mark it empty.
These puzzles reward careful deduction more than speed. Start with the most constrained clues, eliminate impossible choices step by step, and avoid guessing unless the puzzle specifically calls for it.

Beginner Tips

Rows or columns with a clue of 0 contain no track, so mark their empty squares as empty.
Except for A and B, every used track square must connect to exactly two neighboring track squares.
Use no-track marks when a row or column has already reached its required count.