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
g7g5
g7g6
a6c4
a6b5
a6c8
a6b7
d7e5
d7b8
d7f8
h6h5
b6b5
f6e4
f6g4
f6d5
f6h5
f6h7
e6e5
c5d4
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8e7
e8f8
g8h8
g8h7
g8f8

## Board State Fen
r3r1k1/p2n1pp1/bp2pn1p/2p5/2PP3B/P3PP2/3NBKPP/2RR4 b - - 3 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
g7g5
g7g6
a6c4
a6b5
a6c8
a6b7
d7e5
d7b8
d7f8
h6h5
b6b5
f6e4
f6g4
f6d5
f6h5
f6h7
e6e5
c5d4
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8e7
e8f8
g8h8
g8h7
g8f8

## Board State Fen
r3r1k1/p2n1pp1/bp2pn1p/2p5/2PP3B/P3PP2/3NBKPP/2RR4 b - - 3 18
assistant
c5d4