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
a3a4
d1a4
d1b3
d1c2
d1e2
d1b1
d1c1
d2c4
d2e4
d2b1
d2b3
d2f1
g1h1
g1f2
g1f1
c3c4
h2h4
h2h3
g2g4
g2g3
b2c1
e1f1
e1e2
a1c1
a1b1
a1a2
d3b1
d3c2
d3a6
d3b5
d3c4
d3f1
d3e2
d3g6
d3f5
d3e4
e3e4
f3f4
d4c5

## Board State Fen
r2qr1k1/p4ppp/1pn2nb1/2pp4/3P4/P1PBPP2/1B1N2PP/R2QR1K1 w - - 3 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
a3a4
d1a4
d1b3
d1c2
d1e2
d1b1
d1c1
d2c4
d2e4
d2b1
d2b3
d2f1
g1h1
g1f2
g1f1
c3c4
h2h4
h2h3
g2g4
g2g3
b2c1
e1f1
e1e2
a1c1
a1b1
a1a2
d3b1
d3c2
d3a6
d3b5
d3c4
d3f1
d3e2
d3g6
d3f5
d3e4
e3e4
f3f4
d4c5

## Board State Fen
r2qr1k1/p4ppp/1pn2nb1/2pp4/3P4/P1PBPP2/1B1N2PP/R2QR1K1 w - - 3 15
assistant
d3g6