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
b4a2
b4a6
b4c2
b4c6
b4d3
b4d5
g6e4
g6f5
g6h5
a7a5
a7a6
c7c5
c7c6
f7f5
f7f6
h7h5
h7h6
e8a8
e8b8
e8c8
e8d8
e8e4
e8e5
e8e6
e8e7
g8h8

## Board State Fen
4rrk1/p1p2ppp/6b1/8/1n2B3/5PBP/P1PR2P1/4R2K b - - 0 22
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
b4a2
b4a6
b4c2
b4c6
b4d3
b4d5
g6e4
g6f5
g6h5
a7a5
a7a6
c7c5
c7c6
f7f5
f7f6
h7h5
h7h6
e8a8
e8b8
e8c8
e8d8
e8e4
e8e5
e8e6
e8e7
g8h8

## Board State Fen
4rrk1/p1p2ppp/6b1/8/1n2B3/5PBP/P1PR2P1/4R2K b - - 0 22
assistant
g6e4