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
d4e5
d4e4
d4e3
d4d3
d4c4
d4c3
f4f5
b5a5
b5b1
b5b2
b5b3
b5b4
b5h5
b5g5
b5f5
b5e5
b5d5
b5c5
b5b6

## Board State Fen
8/1r6/1pk1p3/1R6/3K1P2/8/8/8 w - - 8 61
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
d4e5
d4e4
d4e3
d4d3
d4c4
d4c3
f4f5
b5a5
b5b1
b5b2
b5b3
b5b4
b5h5
b5g5
b5f5
b5e5
b5d5
b5c5
b5b6

## Board State Fen
8/1r6/1pk1p3/1R6/3K1P2/8/8/8 w - - 8 61
assistant
b5e5