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
a5a2
a5a3
a5a4
a5d5
a5c5
a5b5
a5a6
c6b4
c6b8
c6d8
c6e5
c6e7
a7a6
b7b5
b7b6
d7c5
d7e5
d7b6
d7b8
d7f6
f7f5
f7f6
g7e5
g7f6
g7h6
g7h8
h7h5
h7h6
a8b8
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/pp1n1pbp/2n3p1/q2N2B1/3pP1P1/3B1P2/PP1N3P/R2Q1RK1 b - - 1 16
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
a5a2
a5a3
a5a4
a5d5
a5c5
a5b5
a5a6
c6b4
c6b8
c6d8
c6e5
c6e7
a7a6
b7b5
b7b6
d7c5
d7e5
d7b6
d7b8
d7f6
f7f5
f7f6
g7e5
g7f6
g7h6
g7h8
h7h5
h7h6
a8b8
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/pp1n1pbp/2n3p1/q2N2B1/3pP1P1/3B1P2/PP1N3P/R2Q1RK1 b - - 1 16
assistant
d7e5