# Solution to Better Bridges

There are four puzzles that look like Hashi (or Hashiwokakero), although they cannot be solved with the original ruleset listed at the beginning of the puzzle. In order for each puzzle to be (uniquely) solvable, one or all of the three bullet-pointed rules need to be “upgraded”, based on the color(s) of the border(s) around the puzzles:

Taking all the bridges that used the improved rules gives SA for the first puzzle, SS for the second puzzle, IL for the third puzzle, and Y for the last puzzle, which combine to give the answer SASSILY.

- Red: There can be three bridges between pairs of islands.
- Green: Bridges can be in diagonal directions (45 degrees from horizontal/vertical).
- Blue: Bridges can intersect with each other.

Taking all the bridges that used the improved rules gives SA for the first puzzle, SS for the second puzzle, IL for the third puzzle, and Y for the last puzzle, which combine to give the answer SASSILY.