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
d3b1
d3c2
d3a6
d3b5
d3c4
d3e2
e3c1
e3d2
e3a7
e3b6
e3c5
e3d4
e3g1
e3f2
e3h6
e3g5
e3f4
e1d2
e1h4
e1g3
e1f2
e1b1
e1c1
e1d1
e1e2
c3c4
f1g1
f1f7
f1f6
f1f5
f1f4
f1f3
f1f2
b3a5
b3c1
b3c5
b3d2
b3d4
h2h4
h2h3
g2g3
a2a4
a2a3
h1g1
a1d1
a1c1
a1b1

## Board State Fen
r3kn1r/b1q2pp1/p1p5/4p2p/4P1b1/1NPBB3/PP4PP/R3QR1K w kq - 4 18
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
d3b1
d3c2
d3a6
d3b5
d3c4
d3e2
e3c1
e3d2
e3a7
e3b6
e3c5
e3d4
e3g1
e3f2
e3h6
e3g5
e3f4
e1d2
e1h4
e1g3
e1f2
e1b1
e1c1
e1d1
e1e2
c3c4
f1g1
f1f7
f1f6
f1f5
f1f4
f1f3
f1f2
b3a5
b3c1
b3c5
b3d2
b3d4
h2h4
h2h3
g2g3
a2a4
a2a3
h1g1
a1d1
a1c1
a1b1

## Board State Fen
r3kn1r/b1q2pp1/p1p5/4p2p/4P1b1/1NPBB3/PP4PP/R3QR1K w kq - 4 18
assistant
b3c5