Using logic, try to figure out which number (from 1 to 99) belongs in each square (“box”). The numbers form a chain— 1 will be next to 2, 2 next to 3, and so on (diagonals don’t count). You can click on gray dots to make “queries” that tell you the numbers in the surrounding four boxes.

For additional help, try the HELP button or the solving example.

Other puzzles: 5x5 7x7 9x9 10x10 7x15 14x14 19x21 20x20

Back to Bob’s main Numerichain page.