overview
Shingoki (Semaphores) is a path-logic puzzle played on a dot grid. You draw line segments between adjacent dots to create exactly one closed loop that satisfies circle clues.
Shingoki - online puzzle game
Single-loop deduction puzzle (Semaphores). Keep one cycle, obey white/black circle behavior, and satisfy every clue number.
Mode: 5x5 Easy Shingoki
Puzzle ID: 000,000,000
Time: 0:00
Moves: 0
Hints: 0
Build one closed loop through all shown circles. Use Check for full validation.
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Game Introduction
rules
- The final drawing must be one single closed loop, with no crossings and no branches.
- Every shown circle must lie on the loop.
- White circles must be passed in a straight line; black circles must be passed with a turn.
- Each circle number equals the sum of the two straight line lengths leaving that circle.
controls
- Left click edge: cycle empty -> line -> X.
- Right click edge: reverse cycle.
- Press Check to validate current progress and show a result modal.
- Press Hint for one safe correction, or New Game for a fresh puzzle in current mode.
scoring
Cleaner runs use fewer moves and fewer hints. Time is tracked from puzzle generation until solved. Check helps catch contradictions before they spread.
tips
- Start by locking obvious white-circle straights and black-circle turns.
- Use X marks to block impossible edges and avoid accidental branches.
- When a clue number is large, extend straight legs before adding turns.
- If unsure, run Check first, then spend Hint.
faq
Can the loop split into two smaller loops?
No. The final state must be exactly one loop component.
What if Check says unresolved but no red errors?
Your lines are not contradictory yet, but the board still misses required solution edges.
Do large boards use different rules?
No. All modes keep the same rule signature; only size, clue density, and generation parameters change.
