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
d1b3
d1c2
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
e1d2
c1h6
c1g5
c1f4
c1e3
c1d2
a1b1
a1a3
a1a2
f1h3
f1g2
h1g1
b2b4
b2b3
e2e4
e2e3
f2f4
f2f3
h2h4
h2h3
c3b1
c3b5
c3d5
c3a2
c3e4
g3g4
a4a5
c4b6
c4d2
c4d6
c4a3
c4a5
c4e3
c4e5

## Board State Fen
r3kb1r/ppq2ppp/2p2n2/4nb2/P1N5/2N3P1/1P2PP1P/R1BQKB1R w KQkq - 0 10
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
d1b3
d1c2
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
e1d2
c1h6
c1g5
c1f4
c1e3
c1d2
a1b1
a1a3
a1a2
f1h3
f1g2
h1g1
b2b4
b2b3
e2e4
e2e3
f2f4
f2f3
h2h4
h2h3
c3b1
c3b5
c3d5
c3a2
c3e4
g3g4
a4a5
c4b6
c4d2
c4d6
c4a3
c4a5
c4e3
c4e5

## Board State Fen
r3kb1r/ppq2ppp/2p2n2/4nb2/P1N5/2N3P1/1P2PP1P/R1BQKB1R w KQkq - 0 10
assistant
c1f4