Slant Puzzle Online

Slant is one of the classic one-player logic games in Simon Tatham's Portable Puzzle Collection. Draw a maze of slanting lines that matches the clues.

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Preparing the game board and controls.

Game Objective

Put one diagonal line in every small square. A number on a grid point tells how many line ends must touch that point. The lines also must not form any closed loop.

Draw a maze of slanting lines that matches the clues.

How to Play

Left-click a square to place a diagonal from top-left to bottom-right. Right-click to place the other diagonal from top-right to bottom-left. Click again to cycle or clear the square.

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

  • A 0 means no line end may touch that point.
  • A numbered point is affected only by the small squares touching that corner.
  • Even if all numbers look correct, a closed loop is still not allowed.

Official Rules

For the full original rules, examples, and advanced options, read Simon Tatham's official manual.

Read the official manual

Frequently Asked Questions