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
a5a1
a5a2
a5a3
a5a4
a5f5
a5e5
a5d5
a5c5
a5b5
a5a8
a5a7
a5a6
h5h4
g5g4
f6e4
f6e8
f6g4
f6g8
f6d5
f6d7
f6h7
g6h7
g6h6
g6g7
g6f5
d8b6
d8c7
d8e7

## Board State Fen
3b4/3P1p2/2B2nk1/r5pp/3B4/7P/6P1/3R3K b - - 7 42
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
a5a1
a5a2
a5a3
a5a4
a5f5
a5e5
a5d5
a5c5
a5b5
a5a8
a5a7
a5a6
h5h4
g5g4
f6e4
f6e8
f6g4
f6g8
f6d5
f6d7
f6h7
g6h7
g6h6
g6g7
g6f5
d8b6
d8c7
d8e7

## Board State Fen
3b4/3P1p2/2B2nk1/r5pp/3B4/7P/6P1/3R3K b - - 7 42
assistant
a5a6