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
a1d1
a1c1
a1b1
a1a2
e1c1
e1d1
h1f1
h1g1
b2b4
b2b3
c2b1
c2a4
c2b3
c2d1
c2d3
c2c1
c2c6
c2c5
c2c4
c2c3
d2c4
d2b1
d2b3
d2f1
d2f3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
a3a4
e4d3
e4c6
e4d5
e4f3
e4h7
e4g6
e4f5

## Board State Fen
r1b2r1k/pp3pp1/2n1p2p/1q6/4B3/P3P3/1PQN1PPP/R3K2R w KQ - 4 17
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
a1d1
a1c1
a1b1
a1a2
e1c1
e1d1
h1f1
h1g1
b2b4
b2b3
c2b1
c2a4
c2b3
c2d1
c2d3
c2c1
c2c6
c2c5
c2c4
c2c3
d2c4
d2b1
d2b3
d2f1
d2f3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
a3a4
e4d3
e4c6
e4d5
e4f3
e4h7
e4g6
e4f5

## Board State Fen
r1b2r1k/pp3pp1/2n1p2p/1q6/4B3/P3P3/1PQN1PPP/R3K2R w KQ - 4 17
assistant
d2c4