Contents of Volume 11,

**Journal of Recreational Mathematics,**1978-79# Number 1

Editor’s Page, by Harry L. Nelson

“Help Treat 1978 in an Orderly Manner,” by C. S. Metchette

“The Graph of Positions for the Game of Sim,” by G. L.
O’Brien

“Some Interesting Reversible 4-Digit Primes,” by L. E. Card

“Peekers vs. Stackers, Part I,” by Henry Larson

“Isolated Primes,” by Richard L. Francis

“Acute vs. Obtuse – Revisited,” by Dan Shine

“Cryptarithmetic Puzzles with a Unique Solution Both for
Addition and Multiplication,” by Saburo Tamura, Masahiko Tanaka and Naoyuki
Tamura

Alphametics and Solutions to 10(1) Alphametics, edited by Steven
Kahan

Problems and Conjectures, edited by Friend H. Kierstead, Jr.

Letters to the Editor

Solutions to the Computer Challenge Corner, edited by Friend
H. Kierstead, Jr.

Solutions to Problems and Conjectures, edited by John Brinn
and Romae Cormier

List of Solvers to Alphametics, Computer Challenges,
Problems and Conjectures

# Number 2

“Towards an Optimum Mastermind Strategy,” by Robert W.
Irving

“Peekers vs. Stackers, Part 2,” by Henry Larson

Little Puzzles

“Data on the Reduced Numbers of Fibonacci Numbers,” by I.
Gratton-Guinness

Solutions to Little Puzzles

“Perimeter Antimagic Tetrahedrons and Octahedrons,” by
Charles W. Trigg

“New Dissections of Pentagon and Pentagram,” by Philip
Graham Tilson

“More on Large Primes,” by Rudolf Ondrejka

Announcement of Anecdotes Wanted

“Humanistic Equations,” by Lee D. Ratzan

Book Reviews, edited by Charles W. Trigg

Alphametics and Solutions to 10(2) Alphametics, edited by
Steven Kahan

Problems and Conjectures, edited by Friend H.Kierstead, Jr.

Solutions to Computer Challenge Corner, edited by Friend
H.Kierstead, Jr.

Solutions to Problems and Conjectures, edited by John Brinn
and Romae Cormier

List of Solvers to Alphametics, Computer Challenge Corner
and Problems and Conjectures

# Number 3

“Several Prism Dissections,” by Greg N. Frederickson

“Magic Triangular Regions of Order 4 and 5,” by Zalman
Usiskin and Adam Stephanides

Conference Announcements

“Octal Crossnumber Puzzle,” by Henry Larson

“Pentomino Alphanumerics,” by R. L. Judd and M. E. Zosel

“A Simple Proof of an Old Divisibility Test,” M. J. DeLeon

“Articulating Polyhedral Models,” by Ian P. Howard

Book Reviews, edited by Charles W. Trigg

Letters to the Editor

“How to Play Backgammon Without Dice,” by Dorom Zeilberger
and Jane Legrange

Alphametics and Solutions to 10(3) Alphametics, edited by
Steven Kahan

Problems and Conjectures, edited by Friend H. Kierstead Jr.

Solutions to Octal Crossnumber Puzzle

Solutions to Problems and Conjectures, edited by John Brinn
and Romae Cormier

“Full Digital Fractions,” by Steven Kahan

Solvers List

# Number 4

“Magic Cubes of Prime Order,” by K. W. H. LeeFlang

Big or Little Problems?

“Searching for the 27

^{th}Mersenne Prime,” by David Slowinski
“Cutting Casino Check Cycles Coincidentally,” by Martin J.
Gardner and C. A. McMahan

Solutions to Big or Little Problems

“Extended Fibonacci Series and Binary Golden Numbers,” by
Thomas J. O’Reilly

“A Big Loop,” Nobuyuki Yoshigahara

“The Soma Puzzle: Two Sets, Two Colors,” by David M.
Collison

“Distinct-Digit Sums,” by Stewart Metchette

“Black and White Vertices of a Hypercube,” by B. L. Schwartz

Letters to the Editor

Book Reviews, edited by Charles W. Trigg

Alphametics and Solutions to 10(4) Alphametics, edited by
Steven Kahan

Problems and Conjectures, edited by Friend H. Kierstead, Jr.

Solutions to Problems and Conjectures, edited by Romae
Cormier and John Brinn

Solvers List

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