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
b5a4
b5b4
a6a5
c6c5
h6g4
h6g8
h6f5
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
e7a3
e7b4
e7c5
e7d6
e7g5
e7f6
e7f8
f7f5
f7f6
a8a7
a8c8
a8b8
d8a5
d8b6
d8c7
d8b8
d8c8
e8g8
e8f8
h8f8
h8g8
h8h7

## Board State Fen
r2qk2r/3nbp2/p1p1p1pn/1p1pP1Bp/P2P3P/2P2N2/1PB1QPP1/R4RK1 b kq - 1 16
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
b5a4
b5b4
a6a5
c6c5
h6g4
h6g8
h6f5
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
e7a3
e7b4
e7c5
e7d6
e7g5
e7f6
e7f8
f7f5
f7f6
a8a7
a8c8
a8b8
d8a5
d8b6
d8c7
d8b8
d8c8
e8g8
e8f8
h8f8
h8g8
h8h7

## Board State Fen
r2qk2r/3nbp2/p1p1p1pn/1p1pP1Bp/P2P3P/2P2N2/1PB1QPP1/R4RK1 b kq - 1 16
assistant
e7g5