You complete Kurodoko when every clue's visibility total is exact, no two black cells share an edge, and all white cells form one component. The full Kurodoko position determines the outcome; visual shortcuts never replace the documented Kurodoko terminal rule.
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You complete Kurodoko when every clue's visibility total is exact, no two black cells share an edge, and all white cells form one component. The full Kurodoko position determines the outcome; visual shortcuts never replace the documented Kurodoko terminal rule.
Complete guide
Kurodoko uses the independently implemented Nikoli Kurodoko rules v1 profile (R360). Kurodoko is a complete deterministic browser game built around white clue cells reporting their total orthogonal visibility, with nonadjacent black cells and a single connected white region.
Kurodoko begins with a rectangular grid containing several numeric cells that are necessarily white while other cells remain undecided. The Kurodoko deal identity and Nikoli Kurodoko rules v1 are stored together. Restarting Kurodoko reproduces this opening exactly.
During Kurodoko, you mark cells black or white and compare each clue with visible white cells in four directions until a black cell or border stops sight. The Kurodoko engine rejects profile violations, unavailable material, and every action attempted after Kurodoko reaches a terminal result.
You complete Kurodoko when every clue's visibility total is exact, no two black cells share an edge, and all white cells form one component. The full Kurodoko position determines the outcome; visual shortcuts never replace the documented Kurodoko terminal rule. In the Kurodoko endgame, recount each open ray after placing the final black stops and verify that the remaining white corridors still connect. Check every remaining Kurodoko action before committing because its terminal rule is enforced immediately.
A reliable Kurodoko plan is to extend minimum visible rays from large clues and place black stops where two clue ranges cannot both continue. A Kurodoko hint is legal and deterministic. The next Kurodoko hint exposes one bounded action; it never claims a forced Kurodoko win. A costly Kurodoko mistake is to exclude the clue cell from its own count; Kurodoko visibility totals include the numbered white cell itself. Undo supports studying that Kurodoko decision, while restart preserves the original seeded Kurodoko opening.
Kurodoko uses white clue cells reporting their total orthogonal visibility, with nonadjacent black cells and a single connected white region. That rule belongs to the Kurodoko engine and storage identity rather than a cosmetic preset.
Visibility travels only orthogonally, includes the clue cell, and ends immediately at the first black cell or board boundary.
Kurodoko records its game ID, rules version, and seeded deal identity. Those Kurodoko values recreate the same opening without a server request.