You complete Dosun Fuwari when each room contains exactly one balloon of each colour and every balloon occupies a position allowed by gravity or buoyancy. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
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You complete Dosun Fuwari when each room contains exactly one balloon of each colour and every balloon occupies a position allowed by gravity or buoyancy. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
Complete guide
Dosun Fuwari uses the independently implemented Nikoli Dosun-Fuwari rules v1 profile (R464). Dosun Fuwari is a complete deterministic browser game whose distinct rules centre on one black and one white balloon placed in every room, with black balloons falling and white balloons floating inside their columns.
Dosun Fuwari opens from a versioned seeded position built for one black and one white balloon placed in every room, with black balloons falling and white balloons floating inside their columns. Its game ID, rules profile, and deal identity are stored together so restart recreates the same opening without a server request.
Every Dosun Fuwari action is checked against the current board, available material, and this defining restriction: a black balloon cannot have unused room space beneath it and a white balloon cannot have unused room space above it. Invalid, stale, or post-terminal actions leave the position unchanged.
You complete Dosun Fuwari when each room contains exactly one balloon of each colour and every balloon occupies a position allowed by gravity or buoyancy. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim. Near the end of Dosun Fuwari, recount the remaining obligations needed until each room contains exactly one balloon of each colour and every balloon occupies a position allowed by gravity or buoyancy. Check the boundary rule after every final placement or transfer because terminal status is enforced immediately.
A practical Dosun Fuwari plan is to preserve several legal continuations around one black and one white balloon placed in every room, with black balloons falling and white balloons floating inside their columns. Use the deterministic hint to inspect one legal action, then compare how it affects the documented objective before committing. A common Dosun Fuwari error is to ignore the boundary rule that a black balloon cannot have unused room space beneath it and a white balloon cannot have unused room space above it. Undo is useful for studying that decision, while restart deliberately preserves the original seeded position.
Dosun Fuwari has its own runtime and save identity because its rules require one black and one white balloon placed in every room, with black balloons falling and white balloons floating inside their columns.
a black balloon cannot have unused room space beneath it and a white balloon cannot have unused room space above it.
Dosun Fuwari 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.