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
d7c5
d7e5
d7b6
d7b8
d7f8
e7f8
e7e8
e7d8
e7d6
a8g8
a8f8
a8e8
a8d8
a8c8
a8b8
h8b8
h8c8
h8d8
h8e8
h8f8
h8g8
h8h7
b7a6
b7c8
a7a5
a7a6
h6h5
f6f5
e6e5
c6c5

## Board State Fen
r6r/pb1nkp2/2p1pp1p/8/2BNP3/2P2P2/P4KPP/3R3R b - - 2 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
d7c5
d7e5
d7b6
d7b8
d7f8
e7f8
e7e8
e7d8
e7d6
a8g8
a8f8
a8e8
a8d8
a8c8
a8b8
h8b8
h8c8
h8d8
h8e8
h8f8
h8g8
h8h7
b7a6
b7c8
a7a5
a7a6
h6h5
f6f5
e6e5
c6c5

## Board State Fen
r6r/pb1nkp2/2p1pp1p/8/2BNP3/2P2P2/P4KPP/3R3R b - - 2 15
assistant
a8b8