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
d8a8
d8b8
d8c8
d8d7
d8h8
d8g8
d8f8
d8e8
g3g4
h3h4
g2h2
g2h1
g2g1
g2f3
g2f1
f2f4
f2f3

## Board State Fen
3R4/3n1ppk/p1r3p1/8/8/6PP/5PK1/8 w - - 0 39
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
d8a8
d8b8
d8c8
d8d7
d8h8
d8g8
d8f8
d8e8
g3g4
h3h4
g2h2
g2h1
g2g1
g2f3
g2f1
f2f4
f2f3

## Board State Fen
3R4/3n1ppk/p1r3p1/8/8/6PP/5PK1/8 w - - 0 39
assistant
d8d7