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
f4g5
f4g3
f4f3
f4e5
f4e4
f4e3
g4g5
h4h5
b6a6
b6b1
b6b2
b6b3
b6b4
b6b5
b6g6
b6f6
b6e6
b6d6
b6c6
b6b8
b6b7

## Board State Fen
8/6k1/1R4p1/8/5KPP/8/r7/8 w - - 1 60
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
f4g5
f4g3
f4f3
f4e5
f4e4
f4e3
g4g5
h4h5
b6a6
b6b1
b6b2
b6b3
b6b4
b6b5
b6g6
b6f6
b6e6
b6d6
b6c6
b6b8
b6b7

## Board State Fen
8/6k1/1R4p1/8/5KPP/8/r7/8 w - - 1 60
assistant
b6b7