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
a1e1
a1d1
a1c1
a1b1
a1a5
a1a4
a1a3
a1a2
g2g4
g2g3
f1g1
f1e1
h2h4
h2h3
e3e4
f3f4
a6a7

## Board State Fen
6k1/5ppp/P3p3/1pb5/8/4PP2/1r4PP/R4K2 w - - 1 30
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
a1e1
a1d1
a1c1
a1b1
a1a5
a1a4
a1a3
a1a2
g2g4
g2g3
f1g1
f1e1
h2h4
h2h3
e3e4
f3f4
a6a7

## Board State Fen
6k1/5ppp/P3p3/1pb5/8/4PP2/1r4PP/R4K2 w - - 1 30
assistant
a1c1