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
f1c1
f1d1
f1e1
f1h1
f1g1
b1a1
b1e1
b1d1
b1c1
b1b8
b1b7
b1b6
b1b5
b1b4
b1b3
b1b2
f2f4
f2f3
g2h3
g2h1
g2g1
g2f3
h2h4
h2h3
a3a4
e3c1
e3d2
e3d4
e3h6
e3g5
e3f4
g3g4
c4b2
c4b6
c4d2
c4d6
c4a5
c4e5

## Board State Fen
r2r2k1/4ppbp/2p3p1/p1P5/2N1n3/P3B1P1/4PPKP/1R3R2 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
f1c1
f1d1
f1e1
f1h1
f1g1
b1a1
b1e1
b1d1
b1c1
b1b8
b1b7
b1b6
b1b5
b1b4
b1b3
b1b2
f2f4
f2f3
g2h3
g2h1
g2g1
g2f3
h2h4
h2h3
a3a4
e3c1
e3d2
e3d4
e3h6
e3g5
e3f4
g3g4
c4b2
c4b6
c4d2
c4d6
c4a5
c4e5

## Board State Fen
r2r2k1/4ppbp/2p3p1/p1P5/2N1n3/P3B1P1/4PPKP/1R3R2 w - - 0 18
assistant
b1b7