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
b2b4
b2b3
d1e1
d1d3
d1d2
a2a4
a2a3
h1g1
g2g4
g2g3
f1b5
f1c4
f1d3
f1e2
c1d2
c1b1
c3b1
c3b5
c3d5
c3a4
c3e2
c3e4
h3e6
h3f5
h3g4
h3d3
h3e3
h3f3
h3g3
h3h7
h3h6
h3h5
h3h4
d4c6
d4e2
d4e6
d4b3
d4b5
d4f3
d4f5
f4e5
f4f5

## Board State Fen
r3kb1r/1bq2ppp/p3pn2/1p2p3/3N1P2/2N4Q/PPP3PP/2KR1B1R w kq - 0 13
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
b2b4
b2b3
d1e1
d1d3
d1d2
a2a4
a2a3
h1g1
g2g4
g2g3
f1b5
f1c4
f1d3
f1e2
c1d2
c1b1
c3b1
c3b5
c3d5
c3a4
c3e2
c3e4
h3e6
h3f5
h3g4
h3d3
h3e3
h3f3
h3g3
h3h7
h3h6
h3h5
h3h4
d4c6
d4e2
d4e6
d4b3
d4b5
d4f3
d4f5
f4e5
f4f5

## Board State Fen
r3kb1r/1bq2ppp/p3pn2/1p2p3/3N1P2/2N4Q/PPP3PP/2KR1B1R w kq - 0 13
assistant
c3b5