Smart ShikakuPlay Shikaku online
Find the rectangles hiding in the numbers.
Opening your puzzle…
Nicely reasoned. Puzzle complete!
How to play
Tap two opposite corners to draw a rectangle. Each rectangle contains exactly one numbered clue and has that area. Respect its shape symbol: square, wider, taller or unrestricted. Rectangles must not overlap and must cover the board.
A selection of starter puzzles with local progress on this browser. The iOS apps have their own features and purchase plans.