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
b5a3
b5a7
b5c3
b5d4
b5d6
a6a5
h5h4
e6b6
e6c6
e6d6
e6e1
e6e2
e6e3
e6e4
e6e5
e6f6
e6e7
g6g5
c7c5
c7c6
f7f5
f7f6
g7h8
g7h7
g7h6
g7g8
g7f8
g7f6
e8a8
e8b8
e8c8
e8d8
e8e7
e8h8
e8g8
e8f8

## Board State Fen
4r3/2p2pk1/p3r1p1/1n5p/PN6/5P2/1P1R2PP/3R2K1 b - a3 0 27
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
b5a3
b5a7
b5c3
b5d4
b5d6
a6a5
h5h4
e6b6
e6c6
e6d6
e6e1
e6e2
e6e3
e6e4
e6e5
e6f6
e6e7
g6g5
c7c5
c7c6
f7f5
f7f6
g7h8
g7h7
g7h6
g7g8
g7f8
g7f6
e8a8
e8b8
e8c8
e8d8
e8e7
e8h8
e8g8
e8f8

## Board State Fen
4r3/2p2pk1/p3r1p1/1n5p/PN6/5P2/1P1R2PP/3R2K1 b - a3 0 27
assistant
b5a7