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
a1h1
a1g1
a1f1
a1e1
a1d1
a1c1
a1b1
a1a3
a1a2
d2c4
d2e4
d2b1
d2b3
d2f1
d2f3
e2f2
e2f1
e2e1
e2d1
f4f5

## Board State Fen
8/8/5pp1/3p3p/1k1P1P1P/p5r1/3NK3/R7 w - - 0 52
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
a1h1
a1g1
a1f1
a1e1
a1d1
a1c1
a1b1
a1a3
a1a2
d2c4
d2e4
d2b1
d2b3
d2f1
d2f3
e2f2
e2f1
e2e1
e2d1
f4f5

## Board State Fen
8/8/5pp1/3p3p/1k1P1P1P/p5r1/3NK3/R7 w - - 0 52
assistant
a1b1