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
a6a5
b5b4
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e7
f6e4
f6g4
f6d5
f6d7
f6h5
g7g5
g7g6
h7h5
h7h6
a8a7
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8e7
f8a3
f8b4
f8c5
f8d6
f8e7
g8h8
g8f7

## Board State Fen
r3rbk1/2p3pp/p1n1pn2/1p2p3/4P3/2P1N3/PPB2PPP/R1BR2K1 b - - 0 17
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
a6a5
b5b4
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e7
f6e4
f6g4
f6d5
f6d7
f6h5
g7g5
g7g6
h7h5
h7h6
a8a7
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8e7
f8a3
f8b4
f8c5
f8d6
f8e7
g8h8
g8f7

## Board State Fen
r3rbk1/2p3pp/p1n1pn2/1p2p3/4P3/2P1N3/PPB2PPP/R1BR2K1 b - - 0 17
assistant
f8c5