The Number Puzzler av Roy Mullins

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<p>All the puzzles in this book take the form of number sequences and always some of the terms are missing.</p><p>Sometimes the missing terms are at the end and the puzzle is to work out how the sequence continues.</p><p>Sometimes there are gaps to fill within it.</p><p>Logical thinking is needed to discover the hidden rules and the book systematically explains how to set about solving this intriguing type of puzzle.</p>