Given the available moves based on the current board state in FEN notation, think carefully about which move would be best, then make that move. Be sure to note your color indicated in the FEN notation before deciding.
## Available Moves
c5a3
c5b4
c5b6
c5f2
c5e3
c5d4
c5e7
c5d6
c5a5
c5b5
c5c3
c5c4
d5c3
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6
a6f1
a6e2
a6d3
a6c4
a6b5
a6c8
a6b7
e6e5
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8

## Board State Fen
r4rk1/p4ppp/b1p1p3/2qn4/4P3/1QP3P1/P2B1PBP/R2R2K1 b - e3 0 15
system
You are a chess playing AI.
user
Given the available moves based on the current board state in FEN notation, think carefully about which move would be best, then make that move. Be sure to note your color indicated in the FEN notation before deciding.
## Available Moves
c5a3
c5b4
c5b6
c5f2
c5e3
c5d4
c5e7
c5d6
c5a5
c5b5
c5c3
c5c4
d5c3
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6
a6f1
a6e2
a6d3
a6c4
a6b5
a6c8
a6b7
e6e5
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8

## Board State Fen
r4rk1/p4ppp/b1p1p3/2qn4/4P3/1QP3P1/P2B1PBP/R2R2K1 b - e3 0 15
assistant
d5b6