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
b1a3
b1c3
e1c1
e1d1
e1f1
e1e6
e1e5
e1e4
e1e3
e1e2
a1a3
a1a2
g1h1
g1f1
b2a3
b2c1
b2d4
b2c3
g2f1
g2h1
g2h3
h2h4
h2h3
d3c2
d3f1
d3e2
d3h7
d3g6
d3f5
d3e4
d3a3
d3b3
d3c3
d3e3
d3d4
f3e5
f3g5
f3d4
f3h4
g3g4
c4c5

## Board State Fen
r2qr1k1/pp2bppp/4bn2/n7/P1Pp4/3Q1NP1/1B1P1PBP/RN2R1K1 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
b1a3
b1c3
e1c1
e1d1
e1f1
e1e6
e1e5
e1e4
e1e3
e1e2
a1a3
a1a2
g1h1
g1f1
b2a3
b2c1
b2d4
b2c3
g2f1
g2h1
g2h3
h2h4
h2h3
d3c2
d3f1
d3e2
d3h7
d3g6
d3f5
d3e4
d3a3
d3b3
d3c3
d3e3
d3d4
f3e5
f3g5
f3d4
f3h4
g3g4
c4c5

## Board State Fen
r2qr1k1/pp2bppp/4bn2/n7/P1Pp4/3Q1NP1/1B1P1PBP/RN2R1K1 w - - 3 15
assistant
b1a3