How to play
The winning condition for Renban is precise: every cell, edge, region, and fixed clue satisfies the consecutive room latin completion test. No hidden solution values are printed to justify the result; the rules engine validates the submitted position.
- Before the first move in Renban, identify which marks are givens and which controls are decisions. Complete a Latin grid in which every outlined room contains an unordered run of consecutive, nonrepeating values. The browser stores that distinction with the seeded opening so a restart never changes the puzzle or deal.
- Use the live board controls to change one legal decision at a time. Complete a Latin grid in which every outlined room contains an unordered run of consecutive, nonrepeating values. The runtime validates the resulting state before it records a move or opens a new undo branch.
- The winning condition for Renban is precise: every cell, edge, region, and fixed clue satisfies the consecutive room latin completion test. No hidden solution values are printed to justify the result; the rules engine validates the submitted position.
Strategy tips
- Find the minimum and maximum possible value for each room, then intersect that consecutive range with the unused candidates in every crossing row and column.
- Placing consecutive values in sorted spatial order adds a rule that does not exist; a Renban room needs the set, not a visual sequence.
- Use undo to compare the last branch if two completions look plausible, then recheck the exact requirement: every cell, edge, region, and fixed clue satisfies the consecutive room latin completion test. A locally attractive move can still break a distant constraint.