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
a3a4
d4e4
d4e3
d4d3
d4c3
f4f5
c5b4
c5a7
c5b6
c5f8
c5e7
c5d6

## Board State Fen
8/7p/4kp1P/p1B5/3K1P2/Pb6/1P6/8 w - - 0 45
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
a3a4
d4e4
d4e3
d4d3
d4c3
f4f5
c5b4
c5a7
c5b6
c5f8
c5e7
c5d6

## Board State Fen
8/7p/4kp1P/p1B5/3K1P2/Pb6/1P6/8 w - - 0 45
assistant
c5b6