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
b5d3
b5c4
d5d4
a6a5
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
c6e7
f6f5
d7d6
h7h5
h7h6
c8a8
c8b8
c8c7
c8f8
c8e8
c8d8
g8h8
g8g7
g8f8

## Board State Fen
2r3k1/3p1p1p/p1n2p2/1b1p4/5P2/3P2P1/1RB1N2P/6K1 b - - 1 35
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
b5d3
b5c4
d5d4
a6a5
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
c6e7
f6f5
d7d6
h7h5
h7h6
c8a8
c8b8
c8c7
c8f8
c8e8
c8d8
g8h8
g8g7
g8f8

## Board State Fen
2r3k1/3p1p1p/p1n2p2/1b1p4/5P2/3P2P1/1RB1N2P/6K1 b - - 1 35
assistant
f6f5