You complete Juosan when all room orientation requirements are met and the final black and white run restrictions hold across the complete grid. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
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You complete Juosan when all room orientation requirements are met and the final black and white run restrictions hold across the complete grid. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
Complete guide
Juosan uses the independently implemented Nikoli Juosan rules v1 profile (R465). Juosan is a complete deterministic browser game whose distinct rules centre on black-cell runs in each room that must follow its horizontal or vertical orientation clue without creating overlong consecutive shading.
Juosan opens from a versioned seeded position built for black-cell runs in each room that must follow its horizontal or vertical orientation clue without creating overlong consecutive shading. Its game ID, rules profile, and deal identity are stored together so restart recreates the same opening without a server request.
Every Juosan action is checked against the current board, available material, and this defining restriction: a room's marked orientation governs its internal black adjacency, while board-wide run limits still cross room boundaries. Invalid, stale, or post-terminal actions leave the position unchanged.
You complete Juosan when all room orientation requirements are met and the final black and white run restrictions hold across the complete grid. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim. Near the end of Juosan, recount the remaining obligations needed until all room orientation requirements are met and the final black and white run restrictions hold across the complete grid. Check the boundary rule after every final placement or transfer because terminal status is enforced immediately.
A practical Juosan plan is to preserve several legal continuations around black-cell runs in each room that must follow its horizontal or vertical orientation clue without creating overlong consecutive shading. Use the deterministic hint to inspect one legal action, then compare how it affects the documented objective before committing. A common Juosan error is to ignore the boundary rule that a room's marked orientation governs its internal black adjacency, while board-wide run limits still cross room boundaries. Undo is useful for studying that decision, while restart deliberately preserves the original seeded position.
Juosan has its own runtime and save identity because its rules require black-cell runs in each room that must follow its horizontal or vertical orientation clue without creating overlong consecutive shading.
a room's marked orientation governs its internal black adjacency, while board-wide run limits still cross room boundaries.
Juosan 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.