Al Zimmerman ran some related contests last year: http://azspcs.com/Contest/ThoroughlyMagicHexagons http://azspcs.com/Contest/ThoroughlyMagicHexagons http://a

Al Zimmerman ran some related contests last year: http://azspcs.com/Contest/ThoroughlyMagicHexagons http://azspcs.com/Contest/ThoroughlyMagicHexagons http://azspcs.com/Contest/ThoroughlyMagicHexagons http://azspcs.com/Contest/ThoroughlyMagicHexagons