Codes & ciphers
$7.29 - $8.69
The Mammoth Book Of Brainstorming Puzzles
$5.49 - $5.69
The Giant Book of IQ Puzzles
$4.99
Optical Illusions & Picture Puzzles
$4.69 - $4.79
Visual Vexations
$5.39 - $5.49
The Penguin Sudoku Challenge: Volume 1
$6.49 - $9.01
Penguin Sudoku 2009: A Whole Year's Supply of Sudoku plus some fiendish new Japanese Puzzles
Out of Stock
Universal Sudoku Puzzle
Out of Stock
Penguin Sudoku 2010: A Whole Year's Supply of Sudoku plus some fiendish new Japanese Puzzles
Out of Stock
Lateral puzzles
$4.39
Brain Storming Puzzles
Out of Stock
IQ Puzzles
Out of Stock
Iq Mine Field
Out of Stock
2007 Penguin Sudoku
Out of Stock
Penguin Sudoku 2013: 365 Brand New Sudoku for Every Day of the Year Plus the Latest Addictive Japanes e Puzzles
Out of Stock
Riddles of the Sphinx
Out of Stock
Carnival Puzzles
$26.59
Monster Book of Family Puzzles
Out of Stock
Penguin Sudoku 2006: A Year's Supply of Sudoku and Some Fiendish New Japanese Puzzles
Out of Stock
Pocket Penguin Sudoku 3: The Perfect Book of Protable Puzzles
Out of Stock
The Penguin Sudoku Challenge: Volume 2
Out of Stock
Difficult Sudoku
Out of Stock
Fiendish Sudoku
Out of Stock
Penguin Sudoku 2015
Out of Stock
Moderate Sudoku
Out of Stock
Tricky Sudoku
Out of Stock
Penguin Holiday Sudoku
Out of Stock