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
a3a1
a3a2
a3g3
a3f3
a3e3
a3d3
a3c3
a3b3
a3a8
a3a7
a3a6
a3a5
a3a4
f5f4
g6h7
g6h6
g6h5
g6g7
g6g5
g6f7
g6f6

## Board State Fen
1R6/8/6k1/5p2/6p1/r5P1/5K2/8 b - - 0 44
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
a3a1
a3a2
a3g3
a3f3
a3e3
a3d3
a3c3
a3b3
a3a8
a3a7
a3a6
a3a5
a3a4
f5f4
g6h7
g6h6
g6h5
g6g7
g6g5
g6f7
g6f6

## Board State Fen
1R6/8/6k1/5p2/6p1/r5P1/5K2/8 b - - 0 44
assistant
a3a2