Chain Sudoku - 200 Hard Puzzles 5x5 Vol.3 - Paperback

by David Smith (Author)

The Sudoku Chain is similar to the Jigsaw Sudoku, each one have regions of irregular shapes.Consists of a group of circles arranged in a square grid and containing given clues in various places. The object is to fill all empty circles so that the digits appear exactly once in each row, column and chain.