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
g1f2
g1f1
a2a4
a2a3
c2c3
d2c1
d2a5
d2b4
d2c3
d2e1
d2h6
d2g5
d2f4
d2e3
g2g4
g2g3
h2h4
h2h3
b3b4
f3f4
c4a6
c4b5
c4f1
c4e2
c4d3
c4e6
c4d5

## Board State Fen
r1r3k1/1b1p1ppp/1p2pn2/8/2B5/1P3P2/P1PB2PP/R2R2K1 w - - 2 20
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
g1f2
g1f1
a2a4
a2a3
c2c3
d2c1
d2a5
d2b4
d2c3
d2e1
d2h6
d2g5
d2f4
d2e3
g2g4
g2g3
h2h4
h2h3
b3b4
f3f4
c4a6
c4b5
c4f1
c4e2
c4d3
c4e6
c4d5

## Board State Fen
r1r3k1/1b1p1ppp/1p2pn2/8/2B5/1P3P2/P1PB2PP/R2R2K1 w - - 2 20
assistant
d2e3