Nondango is complete once every cell, edge, region, and fixed clue satisfies the circle runs alternate shade completion test. The terminal check examines every relevant pile, cell, edge, room, and clue before awarding the result.
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Nondango is complete once every cell, edge, region, and fixed clue satisfies the circle runs alternate shade completion test. The terminal check examines every relevant pile, cell, edge, room, and clue before awarding the result.
Complete guide
Nondango uses the independently implemented Nondango circle runs alternate shade rules v1 profile (R645). In Nondango, the position revolves around this rule: Only circles may be shaded, and every uninterrupted horizontal or vertical run of three circles contains both shaded and unshaded circles.
Nondango starts with its fixed information already marked and its editable spaces left for the player. Only circles may be shaded, and every uninterrupted horizontal or vertical run of three circles contains both shaded and unshaded circles. Restart reconstructs the same opening from the stored game ID, rules version, and seed.
A move in Nondango is accepted only while it preserves every already-visible requirement. Only circles may be shaded, and every uninterrupted horizontal or vertical run of three circles contains both shaded and unshaded circles. Failed validation leaves the move count, history, and board exactly as they were.
Nondango is complete once every cell, edge, region, and fixed clue satisfies the circle runs alternate shade completion test. The terminal check examines every relevant pile, cell, edge, room, and clue before awarding the result. At the end of Nondango, recount the remaining destinations, marks, or connections before committing the narrowest move. The finish is accepted only when every cell, edge, region, and fixed clue satisfies the circle runs alternate shade completion test.
For every three-circle run, record whether it already contains each colour; a run with two matching decisions forces the remaining circle to the opposite state. Shading a noncircle or making a three-circle run monochrome cannot be repaired by decisions elsewhere because each uninterrupted run is checked independently.
For every three-circle run, record whether it already contains each colour; a run with two matching decisions forces the remaining circle to the opposite state. This matters specifically because only circles may be shaded, and every uninterrupted horizontal or vertical run of three circles contains both shaded and unshaded circles.
Shading a noncircle or making a three-circle run monochrome cannot be repaired by decisions elsewhere because each uninterrupted run is checked independently. Recheck the legal boundary before choosing a replacement move.
The winning condition for Nondango is precise: every cell, edge, region, and fixed clue satisfies the circle runs alternate shade completion test. No hidden solution values are printed to justify the result; the rules engine validates the submitted position. Undo and redo expose alternative branches without revealing an authored answer.