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
a5d2
a5c3
a5b4
a5d8
a5c7
a5b6
a5a3
a5a4
a5c5
a5b5
a5a6
d5d4
c6b4
c6b8
c6d4
c6d8
c6e5
c6e7
a7a6
b7b5
b7b6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8

## Board State Fen
r4rk1/pp3ppp/2n5/q1Pp4/8/P2QP3/1P1B1PPP/R3K2R b KQ - 0 15
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
a5d2
a5c3
a5b4
a5d8
a5c7
a5b6
a5a3
a5a4
a5c5
a5b5
a5a6
d5d4
c6b4
c6b8
c6d4
c6d8
c6e5
c6e7
a7a6
b7b5
b7b6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8

## Board State Fen
r4rk1/pp3ppp/2n5/q1Pp4/8/P2QP3/1P1B1PPP/R3K2R b KQ - 0 15
assistant
a5c5