Erich Friedman's Published Math Puzzles

Even Odder (Vacation 2014, World of Puzzles)

Non-Zero Paths (March 2014, Games)

Jumper (Extra 2013, World of Puzzles)

Stackoku (October 2013, Games)

Water Works (Fall 2013, World of Puzzles)

Gerrymandering (Summer 2013, World of Puzzles)

Five & Dime (September 2013, Games)

Bottom Line (July 2013, Games)

Domino Doubles (December 2012, Games)

Sun and Shade (October 2012, Games)

Weird Calculator (September 2012, Games)

Slide Weights (July 2012, Games)

Number Maze (March 2012, Games)

Roman Removal (December 2011, Games)

Frameworks (October 2011, Games)

Middle Sum (September 2011, World of Puzzles)

Digitalization (August 2011, Games)
Figuring Out 2011 (August 2011, Games)

C-Note (July 2011, World of Puzzles)

Balancing Act (April 2011, Games)

C-Note (March 2011, Games)

Precise Pointer (March 2011, World of Puzzles)
Pearl (March 2011, World of Puzzles)
Blackout (March 2011, World of Puzzles)
Fibonacci (March 2011, World of Puzzles)
Middle Sum (March 2011, World of Puzzles)

Roll-of-the-Dice (January 2011, World of Puzzles)

Two Digit (November 2010, Games)

One Of Each (November 2010, World of Puzzles)

Latin Squares (September 2010, World of Puzzles)
Number Crosswords (September 2010, World of Puzzles)

Weird Calculator (August 2010, Games)

Cross-Math (July 2010, Brain Games)

Number Pyramid (May 2010, Games)

Shape Sums (February 2010, Games)

Every Which Way (January 2010, World of Puzzles)

C-Note (November 2009, Games)

Rattle Traps (June 2008, Bash)

Cross-Math (January 2008, Brain Games)

Balancing Act (August 2001, Games)

Chess Wars (September 2001, World of Puzzles)

Balancing Act (April 2001/2007, Games)

Chess Wars (February 2001, Games)

Beelines (Fall 2000, World of Puzzles)

Balancing Act (September 2000, Games)

Battleships (September 2000, World of Puzzles)

Add Ventures (August 2000, Games)

Chess Wars (June 2000, Games)

Rattle Traps (April 2000, Games)

Balancing Act (February 2000, Games)

Beelines (November 1999/2006, Games)