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
f1b5
f1c4
f1d3
f1e2
f1h3
f1g2
e4f3
e4d3
f4f5
a6a7

## Board State Fen
8/2p5/Pb2k2p/8/4KP2/8/8/5B2 w - - 20 55
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
f1b5
f1c4
f1d3
f1e2
f1h3
f1g2
e4f3
e4d3
f4f5
a6a7

## Board State Fen
8/2p5/Pb2k2p/8/4KP2/8/8/5B2 w - - 20 55
assistant
f1c4