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
a2a1
a2h2
a2g2
a2f2
a2e2
a2d2
a2c2
a2b2
a2a8
a2a7
a2a6
a2a5
a2a4
a2a3
f4e2
f4e6
f4g2
f4g6
f4d3
f4d5
f4h3
f4h5
e5f6
e5f5
e5e6
e5e4
e5d6
e5d5
e5d4
f7f5
f7f6

## Board State Fen
8/5p2/7K/4k3/5n2/6P1/r6P/5R2 b - - 0 37
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
a2a1
a2h2
a2g2
a2f2
a2e2
a2d2
a2c2
a2b2
a2a8
a2a7
a2a6
a2a5
a2a4
a2a3
f4e2
f4e6
f4g2
f4g6
f4d3
f4d5
f4h3
f4h5
e5f6
e5f5
e5e6
e5e4
e5d6
e5d5
e5d4
f7f5
f7f6

## Board State Fen
8/5p2/7K/4k3/5n2/6P1/r6P/5R2 b - - 0 37
assistant
a2h2