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
e6e5
a6a5
c5a3
c5b4
c5a7
c5b6
c5f2
c5e3
c5d4
c5e7
c5d6
b5b4
h7h5
h7h6
c8b8
c8b7
f8d8
f8e8
f8f2
f8f3
f8f4
f8f5
f8f6
f8f7
f8h8
f8g8

## Board State Fen
2k2r2/2p3pp/p1p1p3/1pb5/4P3/6B1/PPP2PPP/3R2K1 b - - 1 20
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
e6e5
a6a5
c5a3
c5b4
c5a7
c5b6
c5f2
c5e3
c5d4
c5e7
c5d6
b5b4
h7h5
h7h6
c8b8
c8b7
f8d8
f8e8
f8f2
f8f3
f8f4
f8f5
f8f6
f8f7
f8h8
f8g8

## Board State Fen
2k2r2/2p3pp/p1p1p3/1pb5/4P3/6B1/PPP2PPP/3R2K1 b - - 1 20
assistant
f8d8