Slant

Fill every square with a single diagonal so each numbered dot touches exactly that many lines — and no loop ever closes.

How to play

Slant is a logic puzzle played on a grid bordered by a lattice of dots. Every cell must hold one diagonal line, either a backslash or a forward slash. Some dots carry a number telling you exactly how many of the diagonals touching that dot must point at it. Satisfy every numbered clue, fill all cells, and make sure no diagonals ever form a closed loop.

Each cell gets exactly one of the two diagonals — none can be left blank in a finished grid.
A numbered dot must be touched by precisely that many diagonal ends; a green dot is satisfied, a red dot is over its clue.
No loop may form anywhere in the grid; a closed cycle is highlighted in red.
The puzzle is solved when every cell is filled, all clues are green, and there are zero loops.

Game modes

Sizes: 5x5 for a quick solve, 8x8 for a meatier grid, or 10x10 for a real challenge.
Daily: one shared puzzle per size each day. Practice: endless fresh boards.

Controls

Desktop: left-click a cell to cycle backslash, forward slash, then empty; right-click drops a forward slash directly.
Phone & tablet: tap a cell to cycle through the two diagonals and back to empty.

Tips & strategy

Start with the forced clues — a 0 dot turns every diagonal away from it, and a corner 1 or 2 pins its cell immediately.
Treat loop avoidance as a constraint: if a diagonal would close a small cycle, the other orientation is forced.
Work outward from edges and high or low numbers where choices are most restricted.
Use the live colour feedback to spot a dot that has already gone over its clue and backtrack early.

About Slant

Slant is a pencil-and-paper style logic puzzle in the tradition of Japanese grid deduction games. This is an original, free browser version with multiple sizes, daily puzzles, and endless practice — no download or sign-up required.

A free, original browser game on PlayPendium — no download, no install. Browse all games →