Concentration Grid – 7×7 grid in 50.53 sec

Concentration Grid – 7×7 grid in 50.53 sec

#ConcentrationGrid
ID104-C7R7-GR49T50.527
49N0.233-31X4.534-N-DT20170119-165958
www.fb.com/ConcentrationGrid
www.concentrationgrid.com