Summary
Each tile is placed so that it is alone in its row, column and coloured square. Always there is at least one tile that can be placed with certainty - no trial and error is required.
Author(s)
Activity Library
Peter Hewitt
License
Work in progress.
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by 80779 - WILDER on August 6, 2014
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ektyTH(by 80779 - WILDER on August 6, 2014
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u9th0jGjtkrtby 80779 - WILDER on August 6, 2014