You complete Nagareru when every used vertex belongs to one consistently directed closed route and all arrow or wind directions are obeyed. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
Your unfinished game is saved only in this browser.
You complete Nagareru when every used vertex belongs to one consistently directed closed route and all arrow or wind directions are obeyed. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
Complete guide
Nagareru uses the independently implemented Nikoli Nagareru rules v1 profile (R450). Nagareru is a complete deterministic browser game whose distinct rules centre on a directed loop constrained by arrows and wind marks that determine the permitted travel direction through selected positions.
Nagareru opens from a versioned seeded position built for a directed loop constrained by arrows and wind marks that determine the permitted travel direction through selected positions. Its game ID, rules profile, and deal identity are stored together so restart recreates the same opening without a server request.
Every Nagareru action is checked against the current board, available material, and this defining restriction: each used vertex has exactly one incoming and one outgoing edge, so an undirected-looking cycle is not sufficient. Invalid, stale, or post-terminal actions leave the position unchanged.
You complete Nagareru when every used vertex belongs to one consistently directed closed route and all arrow or wind directions are obeyed. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim. Near the end of Nagareru, recount the remaining obligations needed until every used vertex belongs to one consistently directed closed route and all arrow or wind directions are obeyed. Check the boundary rule after every final placement or transfer because terminal status is enforced immediately.
A practical Nagareru plan is to preserve several legal continuations around a directed loop constrained by arrows and wind marks that determine the permitted travel direction through selected positions. Use the deterministic hint to inspect one legal action, then compare how it affects the documented objective before committing. A common Nagareru error is to ignore the boundary rule that each used vertex has exactly one incoming and one outgoing edge, so an undirected-looking cycle is not sufficient. Undo is useful for studying that decision, while restart deliberately preserves the original seeded position.
Nagareru has its own runtime and save identity because its rules require a directed loop constrained by arrows and wind marks that determine the permitted travel direction through selected positions.
each used vertex has exactly one incoming and one outgoing edge, so an undirected-looking cycle is not sufficient.
Nagareru stores its game ID, rules version, and seeded deal identity. Those values recreate the same opening locally without promising that the position is forced or winnable.