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- Tue 27 Feb, 2018 5:50 am
- Forum: Puzzle Competitions
- Topic: UKPA Open Sudoku and Puzzle Tournament 2018
- Replies: 33
- Views: 2980
In the anti-symmetry Rossi Sinai, when it discusses 180 degree symmetry, is it within the cage, or the whole grid, or both? The example implies the whole grid, but I thought there was a chance the example was wrong.