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
a6a5
c6b4
c6b8
c6d4
c6a5
c6a7
c6e5
c6e7
e6e5
b7b5
b7b6
c7a5
c7b6
c7b8
c7h2
c7g3
c7f4
c7e5
c7d6
c7c8
d7c8
d7e8
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
d8a8
d8b8
d8c8
d8e8
f8e8
g8h8

## Board State Fen
3r1rk1/1pqb1ppp/p1n1p3/8/B1P1R3/5N2/PP3PPP/R3Q1K1 b - - 2 17
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
a6a5
c6b4
c6b8
c6d4
c6a5
c6a7
c6e5
c6e7
e6e5
b7b5
b7b6
c7a5
c7b6
c7b8
c7h2
c7g3
c7f4
c7e5
c7d6
c7c8
d7c8
d7e8
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
d8a8
d8b8
d8c8
d8e8
f8e8
g8h8

## Board State Fen
3r1rk1/1pqb1ppp/p1n1p3/8/B1P1R3/5N2/PP3PPP/R3Q1K1 b - - 2 17
assistant
f7f6