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
b1a1
b1e1
b1d1
b1c1
b1b3
b1b2
f1c1
f1d1
f1e1
g1h1
a2a4
a2a3
c2a4
c2b3
c2d1
c2g6
c2f5
c2e4
c2d3
c2b2
c2c1
c2c6
c2c5
c2c4
c2c3
d2c4
d2e4
d2b3
d2f3
e2d1
e2a6
e2b5
e2c4
e2d3
e2h5
e2g4
e2f3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
e3e4
b4b5

## Board State Fen
r1b1r1k1/1p3p2/p1pb1qpp/3p4/1P1P4/4P3/P1QNBPPP/1R3RK1 w - - 0 18
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
b1a1
b1e1
b1d1
b1c1
b1b3
b1b2
f1c1
f1d1
f1e1
g1h1
a2a4
a2a3
c2a4
c2b3
c2d1
c2g6
c2f5
c2e4
c2d3
c2b2
c2c1
c2c6
c2c5
c2c4
c2c3
d2c4
d2e4
d2b3
d2f3
e2d1
e2a6
e2b5
e2c4
e2d3
e2h5
e2g4
e2f3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
e3e4
b4b5

## Board State Fen
r1b1r1k1/1p3p2/p1pb1qpp/3p4/1P1P4/4P3/P1QNBPPP/1R3RK1 w - - 0 18
assistant
e2d3