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
a2a4
a2a3
f3f4
b4a3
b4a5
b4e1
b4d2
b4c3
b4f8
b4e7
b4d6
b4c5
e5f4
e5e4
e5d5
e5d4

## Board State Fen
8/3k4/6p1/1p2K2p/1B5b/5P1P/P7/8 w - - 24 78
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
a2a4
a2a3
f3f4
b4a3
b4a5
b4e1
b4d2
b4c3
b4f8
b4e7
b4d6
b4c5
e5f4
e5e4
e5d5
e5d4

## Board State Fen
8/3k4/6p1/1p2K2p/1B5b/5P1P/P7/8 w - - 24 78
assistant
f3f4