Daily puzzle challenges to test your mind. New puzzles every day.
Place numbers 1-16 in a 4x4 grid so every row, column, and diagonal sums to 34. A magic square puzzle.
Shade cells so no row or column has duplicate unshaded numbers. Shaded cells can't touch. All unshaded cells must connect.
Place numbers 1-19 in a hexagonal grid so every line of cells in all 3 directions sums to 38.
Fill the grid so every row and every column forms a valid English word. A crossword-meets-anagram challenge.
Transform one word into another by changing one letter at a time. Each step must form a valid word.
Move a chess knight to visit every cell on the board exactly once. A classic mathematical puzzle.
Divide the grid into galaxies. Each region must contain one marker and be rotationally symmetric around it.