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
d4d5
e4f4
e4f3
e4d3
a7a1
a7a2
a7a3
a7a4
a7a5
a7a6
a7g7
a7f7
a7e7
a7d7
a7c7
a7b7
a7a8

## Board State Fen
2k5/R5pp/1p3p2/1P4r1/3PK3/4P3/8/8 w - - 3 45
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
d4d5
e4f4
e4f3
e4d3
a7a1
a7a2
a7a3
a7a4
a7a5
a7a6
a7g7
a7f7
a7e7
a7d7
a7c7
a7b7
a7a8

## Board State Fen
2k5/R5pp/1p3p2/1P4r1/3PK3/4P3/8/8 w - - 3 45
assistant
e4f4