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
a1c1
a1b1
d1b1
d1c1
d1f1
d1e1
g1h1
g1f1
a2a4
a2a3
b2b4
b2b3
c2c4
c2c3
d2c1
d2a5
d2b4
d2c3
d2e1
d2d3
e2c4
e2d3
e2f1
e2h5
e2g4
e2f3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
e3e4
b5a3
b5a7
b5c3
b5c7
b5d6

## Board State Fen
r4rk1/pp1qnppp/2p1p1b1/1N1p4/3P4/4P3/PPPQBPPP/R2R2K1 w - - 0 15
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
a1c1
a1b1
d1b1
d1c1
d1f1
d1e1
g1h1
g1f1
a2a4
a2a3
b2b4
b2b3
c2c4
c2c3
d2c1
d2a5
d2b4
d2c3
d2e1
d2d3
e2c4
e2d3
e2f1
e2h5
e2g4
e2f3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
e3e4
b5a3
b5a7
b5c3
b5c7
b5d6

## Board State Fen
r4rk1/pp1qnppp/2p1p1b1/1N1p4/3P4/4P3/PPPQBPPP/R2R2K1 w - - 0 15
assistant
b5c3