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
c1a1
c1b1
c1e1
c1d1
c1c6
c1c5
c1c4
c1c3
c1c2
f1d1
f1e1
g1h1
a2a4
a2a3
g2g4
g2g3
h2h4
h2h3
b3a4
b3d1
b3c2
b3c4
b3a3
b3e3
b3d3
b3c3
b3b5
b3b4
f3e1
f3e5
f3g5
f3d2
f3d4
f3h4
e4b1
e4c2
e4d3
e4h7
e4g6
e4f5
d5c3
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6

## Board State Fen
2rq1rk1/1b3ppp/p1n2b2/1p1N4/4B3/1Q3N2/PP3PPP/2R2RK1 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
c1a1
c1b1
c1e1
c1d1
c1c6
c1c5
c1c4
c1c3
c1c2
f1d1
f1e1
g1h1
a2a4
a2a3
g2g4
g2g3
h2h4
h2h3
b3a4
b3d1
b3c2
b3c4
b3a3
b3e3
b3d3
b3c3
b3b5
b3b4
f3e1
f3e5
f3g5
f3d2
f3d4
f3h4
e4b1
e4c2
e4d3
e4h7
e4g6
e4f5
d5c3
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6

## Board State Fen
2rq1rk1/1b3ppp/p1n2b2/1p1N4/4B3/1Q3N2/PP3PPP/2R2RK1 w - - 0 18
assistant
b3e3