Suguru puzzle book for Adults: 200 Hard to Very Hard Puzzles 11x11 (Volume9) - Paperback

by Alena Gurin (Author)

The book contains 200 excellent Suguru puzzles 11x11.

• Hard puzzles 100
• Very Hard puzzles 100
• All riddles have only 1 solution.
• 2 puzzles per page.
• The font size is correct you will not have to strain your eyes when solving puzzles.
• High quality paper and print (all puzzles read well, easy to write with pen and pencil without worry of bleed-through).
  
  

Suguru, also known as Tectonics or Number Blocks, is a Japanese puzzle invented by Naoki Inaba. The goal is to fill a given rectangular grid with numbers, so that every designated area contains a sequence of non-repeating, consecutive numbers, starting from 1 and going up. Also, adjacent (touching) cells should not contain the same number, even diagonally.