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
b7b5
b7b6
c7c5
c7c6
a7a5
a7a6
g6g5
e7e5
e7e6
f7f5
f7f6
g7d4
g7e5
g7f6
g7f8
g7h6
h7h5
h7h6
a8b8
e8g8
e8f8
h8f8
h8g8

## Board State Fen
r1bqk2r/pppnppbp/6p1/8/Q2PP3/2P2N2/P4PPP/R1B1KB1R b KQkq - 4 8
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
b7b5
b7b6
c7c5
c7c6
a7a5
a7a6
g6g5
e7e5
e7e6
f7f5
f7f6
g7d4
g7e5
g7f6
g7f8
g7h6
h7h5
h7h6
a8b8
e8g8
e8f8
h8f8
h8g8

## Board State Fen
r1bqk2r/pppnppbp/6p1/8/Q2PP3/2P2N2/P4PPP/R1B1KB1R b KQkq - 4 8
assistant
e8g8