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
g1h2
g1h1
g1f1
b2b4
b2b3
e1f1
e1e3
e1e2
c2c3
f2f4
f2f3
g2f1
g2f3
g2h1
g2h3
g3g4
c4b6
c4d2
c4d6
c4a3
c4a5
c4e3
c4e5
h4h5
d5c3
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6
d1h5
d1g4
d1f3
d1e2
d1b1
d1c1
d1d2
a1c1
a1b1
a1a3
a1a2

## Board State Fen
r2qr1k1/1pp1npb1/4b1pp/p2Np3/P1NpP2P/3P2P1/1PP2PB1/R2QR1K1 w - - 1 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
g1h2
g1h1
g1f1
b2b4
b2b3
e1f1
e1e3
e1e2
c2c3
f2f4
f2f3
g2f1
g2f3
g2h1
g2h3
g3g4
c4b6
c4d2
c4d6
c4a3
c4a5
c4e3
c4e5
h4h5
d5c3
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6
d1h5
d1g4
d1f3
d1e2
d1b1
d1c1
d1d2
a1c1
a1b1
a1a3
a1a2

## Board State Fen
r2qr1k1/1pp1npb1/4b1pp/p2Np3/P1NpP2P/3P2P1/1PP2PB1/R2QR1K1 w - - 1 18
assistant
d5e7