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
f1a1
f1b1
f1c1
f1d1
f1e1
f1h1
f1g1
f1f8
f1f7
f1f6
f1f5
f1f4
f1f3
f1f2
d5d4
a7a5
a7a6
e7f8
e7f7
e7e8
e7d8
e7d7

## Board State Fen
8/p3k3/1p5R/1P1pP3/P5K1/4P3/8/5r2 b - - 2 48
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
f1a1
f1b1
f1c1
f1d1
f1e1
f1h1
f1g1
f1f8
f1f7
f1f6
f1f5
f1f4
f1f3
f1f2
d5d4
a7a5
a7a6
e7f8
e7f7
e7e8
e7d8
e7d7

## Board State Fen
8/p3k3/1p5R/1P1pP3/P5K1/4P3/8/5r2 b - - 2 48
assistant
f1e1