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
f7f5
f7f6
b4a3
b4a5
b4e1
b4d2
b4c3
b4d6
b4c5
d7a4
d7b5
d7c6
d7e8
b6a4
b6a8
b6c4
b6d5
e7c5
e7d6
e7d8
e7h4
e7g5
e7f6
e7e8
a7a5
a7a6
e6e5
c8a8
c8b8
c8c1
c8c2
c8c3
c8c4
c8c5
c8c6
c8c7
c8e8
c8d8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
2r2rk1/pp1bqpp1/1n2p2p/7Q/1b1NNP2/1B2PR2/PP4PP/R5K1 b - - 4 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
f7f5
f7f6
b4a3
b4a5
b4e1
b4d2
b4c3
b4d6
b4c5
d7a4
d7b5
d7c6
d7e8
b6a4
b6a8
b6c4
b6d5
e7c5
e7d6
e7d8
e7h4
e7g5
e7f6
e7e8
a7a5
a7a6
e6e5
c8a8
c8b8
c8c1
c8c2
c8c3
c8c4
c8c5
c8c6
c8c7
c8e8
c8d8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
2r2rk1/pp1bqpp1/1n2p2p/7Q/1b1NNP2/1B2PR2/PP4PP/R5K1 b - - 4 18
assistant
b4c5