Strategy Puzzles
Strategy puzzles using logic, probability, and number theory. Do one puzzle a day for a month!
Change Some of the Operators
This Puzzle Has Two Solutions
Here's a Simple Matchstick Design
You Decide To Play a Hard Game
Can You Find Them All?
Compare the Ranges
Is Statement #1 True or False?
Gina's on a Roll!
Make It All Add Up
What Happens if You Choose Randomly?
Where's the Gold?
Don't Use a Calculator
How Tall Is Kim?
Can You Do It Differently?
Which One Is Lacking in Factors?
You Find a List of Six Strange Statements
Compare These Two Approximations of 2 Pi
Let's mix up some candy!
What's Bob's Number?
How Worried Should You Be?
Let's Find Some Primes!
Is One Question Enough?
Start With Two Bottles of Sand
Meet the Cuboctahedron
The High Roll Wins!
Which Cards Do You Turn?
What Happens to This Ball?
Who Gets There First?
It's a Gift Swap!
Odd or Even?
Who Ate Donnie's Pizza?
Course description
A one-month puzzle-a-day challenge! Topics include: logic, probability, and number theory.