Ring Border

Ring Border is a loop puzzle. A grid of dots with numbers scattered between them, and one rule: draw a single closed loop along the dots so that every number counts exactly how many of its cell's four sides the loop uses.

Tap the run between two dots to lay a piece of fence, tap again to mark it as definitely empty, once more to clear it. Those "definitely empty" marks are half the game — ruling a side out is usually what makes the next cell obvious.

The finished fence has to be one loop. No loose ends, no branches, and no second small loop tucked away in a corner. Getting all the numbers right is not enough on its own.

Every field in Ring Border was built as a region first, then its numbers were removed one at a time for as long as the solution stayed unique. What you see is close to the minimum set of clues, and there is exactly one loop that fits them.

Ten fields, from four by four up to eight by eight, with the clues thinning out as you go. Each field is fixed to its level.

Offline, no accounts, no forced ads, nothing to buy.

Features:
- One closed loop, checked for loose ends and stray loops
- Three-state edges: fence, ruled out, blank
- Clues trimmed to the minimum that still gives one answer
- Ten fields, four by four up to eight by eight
- Each field fixed to its level
- Works fully offline