A daily tiling puzzle. The white cells have been cut into tetronimoes — four cell pieces — and your job is to work out where every piece is.
Click a cell to cycle it through the shapes on offer today, writing in which shape covers it, and right click to wipe it in one go. Every white cell belongs to exactly one piece, and only the shapes listed below were used. Pieces may be turned and mirrored freely, so a shape and its mirror image count as the same one.
Between some cells there is a mark, and every mark falls on a join between two pieces. × means the two pieces either side are different shapes. = means they are two different pieces of the same shape.
Some cells are hatched. No single piece may cover more than one hatched cell.
There is exactly one answer. A mark turns red when the letters either side of it break it, and a finished piece is outlined in red if it has swallowed two hatched cells. Finish a piece correctly and it is coloured in, so you can see it as a piece rather than four letters.
— three a day. The bigger boards need more clues to pin their answer down, which is most of what makes them harder.
Every puzzle has a name, shown in the heading below: today's is the date, and a random puzzle gets a number. Type a name in to play that exact puzzle, which is also how you set a friend the same one.