Santorini: PUZZLE_155 - Charybdis vs Hermes

PUZZLE_155
Rating: Expert
Charybdis (blue) vs. Hermes (red)
Charybdis to play and win in 5 turns.

1.
C: b1-a1-a2, build B1(3)
H: skip, build B1(X)

2.
C: a2-a1-a2, build A1(1), whirlpool A1
H: skip, build C1(2)

3.
C: a2-a1-a2, build A1(2), whirlpool A1
H: c2-c1, build C2(2)

4.
C: a2-a1-a2, build A1(3)