Cover of Extreme Sudoku: 200 Hardest Sudoku Puzzles for Adults, SER 8.5 to 9.0 Rated, Four Per Page, Answers in Back (Pixel Wizard Calibrated)

Pixel Wizard Calibrated · Vol. 1

Extreme Sudoku: 200 Hardest Sudoku Puzzles for Adults, SER 8.5 to 9.0 Rated, Four Per Page, Answers in Back (Pixel Wizard Calibrated)

200 SER 8.5 to 9.0 extreme Sudoku puzzles for adults, four per page, with answers in back.

About this book

Extreme Sudoku is written for adults who find ordinary hard puzzles over too quickly. Every one of the 200 puzzles is rated between SER 8.5 and 9.0 on the Sudoku Explainer scale, and each carries its individual SER rating so you know what you are taking on.

The layout is dense by design. Four puzzles share each 8.5 x 11 inch page, packing a long stretch of solving into one paperback, with answers in back.

What is included

  • 200 Sudoku puzzles
  • SER 8.5 to 9.0 rated
  • Four puzzles per page
  • Individual SER ratings
  • Answers in back

Format

Paperback. 8.5 x 11 in. Four puzzles per page for advanced adult solvers.

More in this series

This book is the entry point to the Pixel Wizard Calibrated line. The step above is Unhinged Sudoku, rated SER 9.0 to 9.5. If you want the same difficulty with bigger grids, the large print edition prints one puzzle per page.

Common questions

What does SER 8.5 to 9.0 mean?

SER is the Sudoku Explainer rating, a scale for Sudoku difficulty. The 8.5 to 9.0 band is extreme territory meant for advanced adult solvers. Each puzzle in the book lists its own rating.

Are the answers included?

Yes, answers in back cover all 200 puzzles. Each puzzle has one solution to check against when you finish.

Why four puzzles per page?

The 8.5 x 11 inch trim is large enough to hold four grids at a workable size. That keeps the book compact for solvers who go through many puzzles. A large print, one-per-page edition is available separately.

Buy the paperback

Amazon ASIN: B0H3P11388 · Current Amazon price checked: $9.99.