Pokémon Go Efficiency
This Riddler puzzle is about a topic near and dear to many hearts: Pokémon! Your neighborhood park is full of Pokéstops — places where you can restock on Pokéballs to, yes, catch more Pokémon! You are...
View ArticleNon-intersecting chessboard paths
This Riddler classic puzzle is about finding non-intersecting paths on a chessboard: First, how long is the longest path a knight can travel on a standard 8-by-8 board without letting the path...
View ArticleRig the election with math!
This Riddler problem is about gerrymandering. How to redraw borders to sway a vote one way or another. Below is a rough approximation of Colorado’s voter preferences, based on county-level results from...
View ArticleBaby poker
Another game theory problem from the Riddler. This game is a simplified version of poker, but captures some interesting behaviors! Baby poker is played by two players, each holding a single die in a...
View ArticleTiming a stoplight just right
This Riddler is about how to perfectly time a stoplight, something we’ve all had to deal with! You are driving your car on a perfectly flat, straight road. You are the only one on the road and you can...
View ArticleSquaring the square
This Riddler puzzle is about tiling a square using smaller squares. You are handed a piece of paper containing the 13-by-13 square shown below, and you must divide it into some smaller square pieces....
View ArticleOstomachion coloring
The following problems appeared in The Riddler. And it features an interesting combination of an ancient game with the four-color theorem. The famous four-color theorem states, essentially, that you...
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