Bridges (BrainBashers)

Bridges is BrainBashers' version of Hashiwokakero. Each island is a numbered circle or square on the grid, and the number is how many bridges must leave it. Bridges run in straight horizontal or vertical lines between two islands, any pair of islands can be joined by one or two bridges, and bridges may not cross each other or pass over another island. When you are done, every island must be reachable from every other, so the whole map forms one network.

Kevin Stone's site posts 7x7, 10x10, 15x15 and 20x20 maps every day, each at Easy, Medium and Hard, with a 25x25 weekly special. There is an option to play with the arrow keys. The page has check, answer, print and restart buttons, an option to show mistakes and an optional clock, and a help page with a walkthrough.

The puzzles change at midnight GMT or at the time zone you set, and the date list keeps about four weeks of earlier days, with Random buttons for extra Easy, Medium and Hard maps. The pages carry no adverts and need no account.

It suits players who like drawing their way to an answer; the small maps are quick and the 20x20 Hard ones can fill an evening.