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
a6a5
b6a5
b6a7
b6e3
b6d4
b6c5
b6d8
b6c7
d6d5
f6e4
f6e8
f6g4
f6g8
f6d5
f6d7
f6h5
e7e5
e7e6
f7g8
f7g7
f7g6
f7f8
f7e8
f7e6
h7h5
h7h6
a8a7
a8g8
a8f8
a8e8
a8d8
a8c8
a8b8
h8b8
h8c8
h8d8
h8e8
h8f8
h8g8

## Board State Fen
r6r/1p2pk1p/pb1p1n2/5p2/5P2/2N1B3/PPP3PP/2KRR3 b - - 3 20
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
a6a5
b6a5
b6a7
b6e3
b6d4
b6c5
b6d8
b6c7
d6d5
f6e4
f6e8
f6g4
f6g8
f6d5
f6d7
f6h5
e7e5
e7e6
f7g8
f7g7
f7g6
f7f8
f7e8
f7e6
h7h5
h7h6
a8a7
a8g8
a8f8
a8e8
a8d8
a8c8
a8b8
h8b8
h8c8
h8d8
h8e8
h8f8
h8g8

## Board State Fen
r6r/1p2pk1p/pb1p1n2/5p2/5P2/2N1B3/PPP3PP/2KRR3 b - - 3 20
assistant
b6e3