Crosswords that run three ways at once. Each cube holds twelve interlocking grids — four facing each way — built on the British newspaper rule generalised to three dimensions, so every face and every slice reads as an ordinary crossword.
Not a box either. Five square sheets stood one behind another, each one square higher than the last, so the answers that thread from sheet to sheet run three letters where the stack overlaps and five where it does not.
Print — 5 flat gridsThe Tower laid on its side. Nine letters go Across and five every other way, so the long answers and the short ones swap directions.
Print — 5 flat gridsNot a cube. Taller than it is wide, so the Down entries run nine letters while everything else runs five — and eleven crosswords sit inside it rather than twelve.
Print — 5 flat gridsThe same cube, reclued throughout with political cryptics.
Print — 7 flat gridsSix of the answers belong to the theme. Finding them is half of it.
Print — 5 flat gridsStart here. Small enough to hold in your head while you learn the shape.
Print — 5 flat gridsEmpty solver. Drop a puzzle in, or cut a grid and fill it in the browser.
It is an ordinary crossword, three times over. Words run left to right (Across), top to bottom (Down) and away into the depth of the cube (Through), and every letter is shared by the words that meet on it — so an answer you are sure of gives you letters in two other directions at once.
Tap a square and type. The clue you are on is at the top, with the
entries that cross it beside the number: tap one of those to follow it.
Drag the cube to turn it, and use Show to look at one
crossword at a time, or all of them laid out flat like an ordinary
puzzle.
Open the workshop. Click squares to cut the black ones, press Fill grid to have it find words that fit, then write the clues against the cube as you turn it. It will tell you as you go whether the grid you have drawn can be filled at all, which is the thing that decides everything else.
When it is done, Export playable HTML gives you a single file that is the whole puzzle — email it to somebody and it opens and plays with nothing installed.
Install it and the puzzles work with no connection at all — on a plane, on the Tube, anywhere.
Your browser will offer this from its own menu (“Install app” or “Add to Home Screen”).
Open any puzzle and press Share link. The whole thing — grid, answers, clues — is packed into the address itself, about 2 kB. Nothing is uploaded anywhere.