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
b1a3
b1c3
b1d2
c1h6
c1g5
c1f4
c1e3
c1d2
d1f1
d1e1
d1d5
d1d4
d1d3
d1d2
g1h1
g1f1
a2a4
a2a3
b2b4
b2b3
e2d3
e2f1
e2c2
e2d2
e2e1
e2e4
e2e3
g2g4
g2g3
h2h4
h2h3
f3e1
f3g5
f3d2
f3d4
f3h4
c4b3
c4a6
c4b5
c4d3
c4d5

## Board State Fen
r4rk1/2pqbppp/p1n1b3/3pP3/2B1n3/5N2/PP2QPPP/RNBR2K1 w - - 1 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
b1a3
b1c3
b1d2
c1h6
c1g5
c1f4
c1e3
c1d2
d1f1
d1e1
d1d5
d1d4
d1d3
d1d2
g1h1
g1f1
a2a4
a2a3
b2b4
b2b3
e2d3
e2f1
e2c2
e2d2
e2e1
e2e4
e2e3
g2g4
g2g3
h2h4
h2h3
f3e1
f3g5
f3d2
f3d4
f3h4
c4b3
c4a6
c4b5
c4d3
c4d5

## Board State Fen
r4rk1/2pqbppp/p1n1b3/3pP3/2B1n3/5N2/PP2QPPP/RNBR2K1 w - - 1 13
assistant
b1c3