Penguin Books, 1988. — 196 p.
Acknowledgements
Puzzles with Numbers
Interesting Integers
Joshua and His Rats
The Powers That Be
Alphanumerics
Prime Scores
Large Numbers
Smugs Golf Club
Number Play
Telephone Numbers
Three of the Best
Ten-Digit Numbers
Solutions
Unusual Chess Puzzles
Retrochess
Black or White?
Three-Dimensional Chess
Which Mates in Four
Tread Boldly
Detective Chess
Mate in Sixty
A Tricky Mate
Mate in Four
The Crusader
Three Winks and 99/100 Seconds
A Master Blunder
Solutions
Puzzles with Shapes
The Happy Dog
Mahatma's Triangle
Samos Farm
Argand Island
The Four-Five-Six Triangle
A Cunning Plot
The Floating Ball
Unsquare Squares
Gilbert's Stud
Isosceles, Usosceles, We All Sosceles
Solutions
Crossclue Puzzles
Crosswumber
Black Out
Amicable Rings
XXXXX
Crossreference
Little Pigley
Lucky Numbers
Curiosities
Key of the Door
Crossanagram
Roman Squares
Solutions
Puzzles for Clear Thinkers
Standard and Poor
Age-Old Problems
The Sons of Eumaeus
Strategies
Eddington's Cricket Match
Sweetpea Planes
Name the Numbers
The Hoax
Weighty Problems
Switchback
Solutions
Miscellaneous Puzzles
Figuratively Speaking
Coconuts
Practical Life
Garfath Park
Potpourri
Magic Squares
Blue Moon
Practical General
Selected Chestnuts
The Ticket to Heaven
Solutions
Supplement
Alphanumerics (iv)
Alphanumerics (v)
Number Play (ii)
Number Play (iii)
Number Play (iv)
Ten-Digit Numbers (iv)
Mahatma's Triangle
The Floating Ball
Amicable Rings
Switchback
Coconuts (i)
Magic Squares