Even zero in Spanish (CERO) is so useful that it appears from time to time in puzzles. Numbers in other languages show up as well, though in lesser volume. EINS and DREI in German (one and three ...

Kakuro puzzles combine elements of Sudoku, logic, crosswords and basic math into one. The object is to fill all empty squares using numbers 1 to 9 so the sum of each horizontal block equals the ...

The goal is to fill in each of the cells with a number from one through nine ... It sounds simple written out like this, but some of these puzzles can be quite twisted. Unlike a crossword puzzle ...

It features handmade logic puzzles in familiar genres: object placement, loop/path, shading, region division and number placement. (Sudoku, created by Howard Garns, originally called “Number ...

The objective is to fill in the grid so that each row, column, and 3x3 box contains the numbers 1 to 9, without repeating any ...