46395153
9781539653585
Willy Canter is the author of 'Happy Horse Sudoku 1,200 Puzzles. 300 Easy, 300 Medium, 300 Hard and 300 Extra Hard.: Take Your Playing To The Next Level With This Jumbo Four In One Book (Volume 24)', published 2016 under ISBN 9781539653585 and ISBN 1539653587.
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