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
a8a5
a8a6
a8a7
a8c8
a8b8
g7d4
g7e5
g7f6
g7f8
g7h8
f7f5
f7f6
b7a6
b7c8
c6c5
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
h6h5
g5g4
b5b4
d8a5
d8b6
d8c7
d8f6
d8e7
d8b8
d8c8
e8e3
e8e4
e8e5
e8e6
e8e7
e8f8
g8h8
g8f8

## Board State Fen
r2qr1k1/1b1n1pb1/2p4p/Pp1p2p1/3P4/P2BPNP1/N1Q2PP1/R4RK1 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
a8a5
a8a6
a8a7
a8c8
a8b8
g7d4
g7e5
g7f6
g7f8
g7h8
f7f5
f7f6
b7a6
b7c8
c6c5
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
h6h5
g5g4
b5b4
d8a5
d8b6
d8c7
d8f6
d8e7
d8b8
d8c8
e8e3
e8e4
e8e5
e8e6
e8e7
e8f8
g8h8
g8f8

## Board State Fen
r2qr1k1/1b1n1pb1/2p4p/Pp1p2p1/3P4/P2BPNP1/N1Q2PP1/R4RK1 b - - 0 17
assistant
a8a5