Rectangles aka Shikaku

Volume One: Easy 5x5 Grids


Rectangles is a pure logic challenge for serious thinkers.

Also known as Shikaku, this elegant puzzle asks you to divide a grid into perfect rectangles - each containing exactly one number, and each matching that number's area.

Simple rules. Powerful reasoning.

Inside this volume, you'll train your brain to:

¿ Analyze spatial relationships
¿ Think in factor pairs
¿ Eliminate impossibilities
¿ Manage limited space
¿ Solve with precision - not guessing

Every puzzle is carefully constructed to provide a satisfying logical path to the solution. No tricks. No randomness. Just clean deduction.

Whether you are new to Rectangles or already a seasoned solver, this collection is designed to strengthen your structured thinking skills while delivering hours of focused, satisfying challenge.

If you enjoy Sudoku, Shikaku, Numbrix, or other grid-based logic puzzles, Rectangles will quickly become a new favorite.

Great Puzzle Books - where logic gets sharper.

$5 Worldwide Shipping
  • 72 pages
  • Paperback
  • 6in × 9in
  • Black & White
  • 979-890384007-6