How to play
Success in Kouchoku requires that every cell, edge, region, and fixed clue satisfies the letter segment right angle loop completion test. The game declares completion only after all interacting restrictions agree at the same time.
- The Kouchoku opening separates permanent constraints from player-controlled positions. Join the clue points with straight segments into one nonbranching loop; matching letters must be consecutive, different letters cannot connect directly, and intersections are right angles. Its versioned seed recreates those same constraints locally while keeping unrevealed decisions out of the guide and board labels.
- Kouchoku treats the printed or dealt restrictions as hard constraints, not suggestions. Join the clue points with straight segments into one nonbranching loop; matching letters must be consecutive, different letters cannot connect directly, and intersections are right angles. A move that contradicts the current state has no effect, including after the game has ended.
- Success in Kouchoku requires that every cell, edge, region, and fixed clue satisfies the letter segment right angle loop completion test. The game declares completion only after all interacting restrictions agree at the same time.
Strategy tips
- Pair matching letters through candidate consecutive loop segments and reserve intersection points where both traversals can meet strictly at right angles.
- Letting segments cross obliquely or connect at the crossing changes the loop graph; every intersection must preserve the required right-angle passage.
- Close Kouchoku by auditing the boundary cases first and the obvious placements second. The position is not done until every cell, edge, region, and fixed clue satisfies the letter segment right angle loop completion test.