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
a5d8
a5c7
a5b6
a5a2
a5a3
a5a4
a5c5
a5b5
a5a6
b4b3
d5a2
d5b3
d5c4
d5a8
d5b7
d5c6
d5g2
d5f3
d5e4
e6e5
f6d4
f6e5
f6d8
f6e7
f6h4
f6g5
h6h5
g7g5
g7g6
c8a8
c8b8
c8c5
c8c6
c8c7
c8e8
c8d8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
2r2rk1/5pp1/B3pb1p/q1Pb4/1p1N4/4P3/PP2QPPP/2R2RK1 b - - 0 20
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
a5d8
a5c7
a5b6
a5a2
a5a3
a5a4
a5c5
a5b5
a5a6
b4b3
d5a2
d5b3
d5c4
d5a8
d5b7
d5c6
d5g2
d5f3
d5e4
e6e5
f6d4
f6e5
f6d8
f6e7
f6h4
f6g5
h6h5
g7g5
g7g6
c8a8
c8b8
c8c5
c8c6
c8c7
c8e8
c8d8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
2r2rk1/5pp1/B3pb1p/q1Pb4/1p1N4/4P3/PP2QPPP/2R2RK1 b - - 0 20
assistant
c8c5