The recent mix of “Last Days of SUM-mer” arithmetic puzzles is collected in this PDF and the solutions are in this PDF.

The daily solution videos are on the posts and linked below:

This next week of puzzles will be themed around Spiral Galaxies puzzles.

We have recently added several more Penpa versions of puzzles to the site, completing the main entries for TomTom and LITS styles, to bring us to over 775 puzzles digitized so far this year. The six completed sudoku genres and six completed puzzle genres are listed on our Penpa Notes page.

Later today we’ll be posting the first issue of a new book series, Grandmaster Puzzles Quarterly 1. This book has 60 total puzzles, with six sections containing 7 “regular” puzzles and one variation with 3 more puzzles. The first issue focuses on Sudoku, TomTom, Star Battle, Tapa, Fillomino, and Yajilin. Each section is meant to resemble a full week of GMPuzzles on the web, but packed with extra content. While this first issue took more time than expected to prepare, our managing editor Serkan Yürekli and contributing authors are pretty far along with Grandmaster Puzzles Quarterly 2 which will be out by the end of the year with an even larger size.