In the coming decades, the great American political debates will be less and less likely to feature Franklin Roosevelt-style Democrats squaring off against Ronald Reagan-style Republicans. Although ...

The sign above the counter at The Hamiltonan’s retail store “says it all,” said Mayor Pat Moeller: Our Town, Our Stories, Our Pride. The Hamiltonian, the monthly magazine that focuses exclusively on ...

Flags of the European Union flutter in front of the headquarters of the European Central Bank in Frankfurt on March 12. (Daniel Roland/AFP/Getty Images) Analysis by Mark Copelovitch Last week, German ...

No, not that Hamilton. I meant William Rowan Hamilton, the nineteenth century Irish mathematician. And not that sort of grid. I meant a square grid, like a chessboard or a Sudoku. Today’s two puzzles ...

Earlier today I set you two puzzles based on Hamiltonian paths in a square grid. A Hamiltonian path is one which visits every cell exactly once. (If you want a print out of the puzzles, click here.) 1 ...