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
c5b4
c5b6
c5e3
c5d4
c5d6
c5a5
c5b5
c5c4
c5h5
c5g5
c5f5
c5e5
c5d5
c5c7
c5c6
e6e5
a7a5
a7a6
b7b5
b7b6
d7e5
d7b6
d7b8
d7f6
e7d6
e7d8
e7h4
e7g5
e7f6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8b8
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/pp1nbppp/4p3/2q5/1PN2Q2/2PBPN2/P5PP/2KR3R b - b3 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
c5b4
c5b6
c5e3
c5d4
c5d6
c5a5
c5b5
c5c4
c5h5
c5g5
c5f5
c5e5
c5d5
c5c7
c5c6
e6e5
a7a5
a7a6
b7b5
b7b6
d7e5
d7b6
d7b8
d7f6
e7d6
e7d8
e7h4
e7g5
e7f6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8b8
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/pp1nbppp/4p3/2q5/1PN2Q2/2PBPN2/P5PP/2KR3R b - b3 0 15
assistant
c5c6