Saturday, April 30, 2011

OCTO Contest on 30 April/01 May

Instruction Book

Puzzle Booklet

  • Download PDF
  • Puzzles used in this contest have been provided by Doug Gardner.

What is OCTO?

    OCTO is a relatively new logic puzzle with a strong influence of Sudoku and Kakuro, but has much more than them. Check the Instruction Booklet for details. provides an interface to solve OCTO puzzles online


    Each of the top three scorers will get two OCTO puzzle books (hard copies).

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