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
a1b1
c1h6
c1g5
c1f4
c1e3
c1d2
d1h5
d1g4
d1f3
d1e2
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
e1e2
e1d2
f1a6
f1b5
f1c4
f1d3
f1e2
h1g1
a2a4
a2a3
b2b4
b2b3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
c3b1
c3b5
c3d5
c3a4
c3e2
e4e5

## Board State Fen
r1bqkb1r/p2p1ppp/2p1pn2/8/4P3/2N5/PPP2PPP/R1BQKB1R w KQkq - 0 7
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
a1b1
c1h6
c1g5
c1f4
c1e3
c1d2
d1h5
d1g4
d1f3
d1e2
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
e1e2
e1d2
f1a6
f1b5
f1c4
f1d3
f1e2
h1g1
a2a4
a2a3
b2b4
b2b3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
c3b1
c3b5
c3d5
c3a4
c3e2
e4e5

## Board State Fen
r1bqkb1r/p2p1ppp/2p1pn2/8/4P3/2N5/PPP2PPP/R1BQKB1R w KQkq - 0 7
assistant
f1d3