HexaBlocks (PuzzleMadness)

Each HexaBlocks puzzle shows an irregular grid of hexagonal cells, sometimes with holes in it, and a set of coloured pieces made of joined hexagons lying underneath. The aim is to place every piece inside the grid. There is no spare space: when the puzzle is right, the pieces cover every cell and none overlap.

It plays like a jigsaw with no picture to go by. The awkward edges of the grid and the holes in the middle give the first clues, because only certain pieces can fill a narrow spike or wrap around a gap. The Medium board on 28 October 2026 had ten pieces on an eight by seven grid with three holes, from a single hexagon to a long bent chain.

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. HexaBlocks comes in Easy, Medium and Hard versions. The Mixed page is not a copy of one of them: it serves a fourth dated grid of its own. Each of the four is shared by everyone who opens it that day.

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 HexaBlocks 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.