Mnemo- & tanketeknik

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  • Big Book of Su Doku 12

    häftad, 2023, Engelska, ISBN 9780008671167

    A bumper collection of easy, medium and difficult Su Doku puzzles to test your mental dexterity, powers of logic and deduction. You will find 100 easy, 100 medium and 100 hard

  • Big Book of Su Doku 11

    häftad, 2022, Engelska, ISBN 9780008608842

    A bumper collection of easy, medium and difficult Su Doku puzzles to test your mental dexterity, powers of logic and deduction. You will find 100 easy, 100 medium and 100 hard