Slant (PuzzleMadness)

The Slant grid starts empty, with circled numbers from 0 to 4 sitting on some of the points where grid lines cross. Every cell must get one diagonal, either from top left to bottom right or from top right to bottom left. A circled number says how many of the diagonals in the cells around it end at that point. The one other rule is that the diagonals may not form a closed loop anywhere in the grid. Clues turn green once they are satisfied.

The first moves come from clues that can only be met one way: a 0 sends every surrounding line away from it, a 4 pulls all four in, a 2 on the edge or a 1 in a corner leaves no choice. After that the no-loop rule does a lot of the work, since a line that would close a ring has to go the other way. On 30 October 2026 the Easy grid was 6x6 and the Hard one 12x12.

PuzzleMadness is a free puzzle website run by Dewi, a software developer who started out making games for the PlayStation 2, Nintendo Wii and DS and now builds the site as a hobby. It carries dozens of puzzle types, from classic sudoku to newer logic grids, and each one gets its own dated puzzle every day at each difficulty. Slant comes in Easy, Medium and Hard versions, and the Mixed page serves a fourth grid of its own whose level changes from day to day. Each day's grids are the same for everyone who opens them.

The site checks your grid as you go and tells you when it is finished; it does not publish solutions. Each completed puzzle earns a score, and scores feed a monthly and an all-time Slant leaderboard, where only your best attempt at a puzzle counts. Older days stay in the archive, so a missed puzzle can still be played later and still counts toward the current month. Playing needs no account; a free registration gives you a username on the leaderboards and a cloud save. The pages carry adverts.