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
a5c3
a5b4
a5d8
a5c7
a5b6
a5a2
a5a3
a5a4
a5h5
a5g5
a5f5
a5e5
a5d5
a5c5
a5b5
a5a6
h7h5
h7h6
e7e5
e7e6
c6a4
c6b5
c6e4
c6d5
b7b5
b7b6
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
a7a6
g6g5
d6d5
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8f8
g8g7

## Board State Fen
r3r1k1/pp1nppBp/2bp2p1/q7/4PP2/1BN4P/PPP3P1/3RQRK1 b - - 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
a5c3
a5b4
a5d8
a5c7
a5b6
a5a2
a5a3
a5a4
a5h5
a5g5
a5f5
a5e5
a5d5
a5c5
a5b5
a5a6
h7h5
h7h6
e7e5
e7e6
c6a4
c6b5
c6e4
c6d5
b7b5
b7b6
d7c5
d7e5
d7b6
d7b8
d7f6
d7f8
a7a6
g6g5
d6d5
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8f8
g8g7

## Board State Fen
r3r1k1/pp1nppBp/2bp2p1/q7/4PP2/1BN4P/PPP3P1/3RQRK1 b - - 0 15
assistant
g8g7