2048Roman

Sweep together tiles with same number until the number on tile is MMXLVIII(2048).
II = 2
IV = 4
VIII = 8
XVI = 16
XXXII = 32
LXIV = 64
CXXVIII = 128
CCLVI = 256
DXII = 512
MXXIV = 1024
MMXLVIII = 2048