Concentration Grid – 6×6 grid time of 25.473 seconds Concentration Grid 8 years ago Concentration Grid GRID_ID60-C6R6-GR36T25.473 17N0.299-15X3.066-N-DT20161014-064733 www.concentrationgrid.com www.fb.com/concentrationgrid www.twitter.com/ConcentrationGr Sent from my iPad Pro