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
c6c5
d6d5
e6b3
e6c4
e6d5
e6h3
e6g4
e6f5
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8a1
a8a2
a8a3
a8a4
a8a5
a8a6
a8a7
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8e7
e8f8
g8h8
g8f8

## Board State Fen
r3r1k1/2pn1ppp/2ppb3/8/4P3/1P1BRPP1/2PN2P1/5RK1 b - - 0 18
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
c6c5
d6d5
e6b3
e6c4
e6d5
e6h3
e6g4
e6f5
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8a1
a8a2
a8a3
a8a4
a8a5
a8a6
a8a7
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8e7
e8f8
g8h8
g8f8

## Board State Fen
r3r1k1/2pn1ppp/2ppb3/8/4P3/1P1BRPP1/2PN2P1/5RK1 b - - 0 18
assistant
f7f6