53115901
9781729104040
Basford Holmes is the author of 'Сlassic 400 + Killer Medium levels sudoku 12 x 12: Holmes presents a logical puzzle book with proven Sudoku. Medium level Sudoku book. (plus 250 ... be printed). (Killer classic Sudoku 12x12)', published 2018 under ISBN 9781729104040 and ISBN 1729104045.
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