Yajilin: Line Logic

Yajilin logic puzzles

Yajilin: Line Logic is a PC logic puzzle game based on Yajilin, also known as Arrow Ring. You shade some cells black, then draw a single loop through the centers of every remaining white cell. The loop can’t cross or branch, and shaded cells can’t touch along their sides, though corner contact is allowed.

Gray cells contain numbered arrow clues. Each number tells you how many black cells lie in the arrow’s direction, counting to the edge of the board. The loop must go around the gray clue cells. Every puzzle has one solution, and its next step can be worked out with logic rather than guesses, much like Sudoku.