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
c1a3
c1b2
c1d2
d1c2
d1e2
d1e1
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
f1e1
g1h1
a2a4
a2a3
g2g4
g2g3
h2h4
h2h3
f3e2
f3h5
f3g4
e4d2
e4d6
e4f6
e4c3
e4c5
e4g3
e4g5

## Board State Fen
r2q1rk1/1b2bppp/p3p3/1p6/1n2N3/1P2PB2/P4PPP/R1BQ1RK1 w - - 3 16
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
c1a3
c1b2
c1d2
d1c2
d1e2
d1e1
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
f1e1
g1h1
a2a4
a2a3
g2g4
g2g3
h2h4
h2h3
f3e2
f3h5
f3g4
e4d2
e4d6
e4f6
e4c3
e4c5
e4g3
e4g5

## Board State Fen
r2q1rk1/1b2bppp/p3p3/1p6/1n2N3/1P2PB2/P4PPP/R1BQ1RK1 w - - 3 16
assistant
c1b2