A1 - E1 - S1 - T1 - H4 - E1 - T1 - I1 - C3 - I1 - S1 - M3 - S1 has 20 points in Scrabble!
A1 - E1 - S1 - T1 - H3 - E1 - T1 - I1 - C4 - I1 - S1 - M4 - S1 has 21 points in Words with Friends!
Found in the OTCWL2014, SOWPODS, ENABLE, and WWF dictionaries