A few months ago we had a full week of Kurotto puzzles and promised that an e-book would be available later this year with more of this great shading puzzle style. Today we’ve released that e-book, Kurotto by Prasanna Seshadri, and it is one of my favorite books that we’ve published because it takes this puzzle style much further than others have, including with a few new variations from Prasanna.

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Our most recent mix of Sudoku puzzles and variations can be found in this PDF and the solutions are all grouped in this PDF and have also been linked to the individual posts.

We have a solving video for the Thursday XV Sudoku by Ashish Kumar:

and another video for the Saturday Thermo-Sudoku by Thomas Snyder:

If you prefer to see Simon from Cracking the Cryptic work on this grid, we have that video too:

This upcoming week will feature Kakuro puzzles.