Yajilin

Numbered arrows count black cells along a sightline. Draw one closed loop through the rest.

About

Classic Yajilin on a 6×6 grid. Each clue cell carries a number and a direction arrow — the number counts the black cells along that direction's sightline to the grid edge (clue cells themselves don't block or count). Place black cells and draw a single closed loop through every non-clue, non-black cell. Black cells never touch orthogonally. Unique-solution generation verified by backtracking solver.

How to play

Arrow keys move the cursor. Space toggles the cell black/unmarked. L cycles the cell's loop state through the loop-edge configurations. X clears the cell. Clue cells are read-only. Win when every non-clue, non-black cell is on a single closed simple cycle, every clue's count matches the black cells along its arrow direction to the edge, and no two black cells touch orthogonally.

Features

• 6×6 grid with mixed loop-cell + black-cell + clue-cell rules
• Sightline-counting clues to grid edge
• Single closed simple cycle through every non-clue, non-black cell
• Loop-first generator with iterative pearl refinement
• Day-one tier-targeted difficulty distribution (E≥35%, M≥30%, H≥20%, X≥10%)
• Two-color palette, single-bundle vanilla TypeScript

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