Loop and Bridge Puzzles

These puzzles are solved by drawing lines. Make a closed loop in Slitherlink or Masyu, or connect numbered islands with bridges. The Slitherlink solver checks any puzzle you type for a unique loop.

Tools in this group

• Bridges Puzzle — Connect the islands with horizontal and vertical bridges so each island has as many bridges as its number.
• Masyu — Draw one closed loop through every circle: go straight through white circles and turn on black ones.
• Slitherlink — Draw one closed loop between the dots; each number says how many sides of its cell the loop uses.
• Slitherlink Solver — Type the numbers of any Slitherlink puzzle and get its loop, a uniqueness check and the solving steps.