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
a6a5
d6b6
d6c6
d6d1
d6d2
d6d3
d6d4
d6d5
d6g6
d6f6
d6e6
d6d8
d6d7
h6h5
b7b5
b7b6
g7g5
g7g6
g8h8
g8h7
g8f8
g8f7

## Board State Fen
6k1/1p4p1/p2r3p/8/P1R5/1P5P/6P1/6K1 b - a3 0 35
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
a6a5
d6b6
d6c6
d6d1
d6d2
d6d3
d6d4
d6d5
d6g6
d6f6
d6e6
d6d8
d6d7
h6h5
b7b5
b7b6
g7g5
g7g6
g8h8
g8h7
g8f8
g8f7

## Board State Fen
6k1/1p4p1/p2r3p/8/P1R5/1P5P/6P1/6K1 b - a3 0 35
assistant
b7b6