Hard Difficulty Sudoku Puzzles

5 primary works

Hard Difficulty Sudoku Puzzles Volume 1

by Simon Cross

Published 23 December 2016

Hard Difficulty Sudoku Puzzles Volume 2

by Simon Cross

Published 23 December 2016

Hard Difficulty Sudoku Puzzles Volume 3

by Simon Cross

Published 24 December 2016

Hard Difficulty Sudoku Puzzles Volume 4

by Simon Cross

Published 24 December 2016

Hard Difficulty Sudoku Puzzles Volume 5

by Simon Cross

Published 24 December 2016