Here are the last six Jigsaw-doku-1 puzzles.
Jigsaw-doku-1 is distinctive in that it has no 3x3 groups of cells unless by accident. The blocks from the
heavier cell boundaries show you where those blocks border with others. This one has numbers.
To download a PDF of the last six Jigsaw-doku-1 puzzles on one sheet, click here or on the image on the right.