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
g4f3
g4c8
g4d7
g4e6
g4f5
g4h3
g4h5
c5b3
c5d3
c5d7
c5a4
c5e4
c5e6
a6a5
a7b6
a7b8
b7b5
b7b6
e7d5
e7f5
e7c6
e7c8
e7g6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8

## Board State Fen
r4rk1/bp2nppp/p2R4/2n5/6b1/2P2N2/PPB2PPP/RNB3K1 b - - 0 15
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
g4f3
g4c8
g4d7
g4e6
g4f5
g4h3
g4h5
c5b3
c5d3
c5d7
c5a4
c5e4
c5e6
a6a5
a7b6
a7b8
b7b5
b7b6
e7d5
e7f5
e7c6
e7c8
e7g6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8

## Board State Fen
r4rk1/bp2nppp/p2R4/2n5/6b1/2P2N2/PPB2PPP/RNB3K1 b - - 0 15
assistant
g4f5