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
e4f4
e4f3
e4d4
e4d3
b8a8
b8b5
b8b6
b8b7
b8h8
b8g8
b8f8
b8e8
b8d8
b8c8

## Board State Fen
1R6/8/4kp2/1p6/4Kp1p/7P/6r1/8 w - - 0 55
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
e4f4
e4f3
e4d4
e4d3
b8a8
b8b5
b8b6
b8b7
b8h8
b8g8
b8f8
b8e8
b8d8
b8c8

## Board State Fen
1R6/8/4kp2/1p6/4Kp1p/7P/6r1/8 w - - 0 55
assistant
b8b5