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
d1a1
d1b1
d1c1
d1f1
d1e1
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
g1h1
g1g2
g1f1
b2b4
b2b3
f2f4
f2f3
h2h4
h2h3
a3a4
g3g4
e4b1
e4c2
e4d3
e4c6
e4d5
e4h1
e4g2
e4f3
e4f5
c5b4
c5a7
c5b6
c5e3
c5d4
c5f8
c5e7
c5d6

## Board State Fen
r5k1/1p4p1/2n1b2p/1pB1pp2/4B3/P5P1/1P3P1P/3R2K1 w - f6 0 27
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
d1a1
d1b1
d1c1
d1f1
d1e1
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
g1h1
g1g2
g1f1
b2b4
b2b3
f2f4
f2f3
h2h4
h2h3
a3a4
g3g4
e4b1
e4c2
e4d3
e4c6
e4d5
e4h1
e4g2
e4f3
e4f5
c5b4
c5a7
c5b6
c5e3
c5d4
c5f8
c5e7
c5d6

## Board State Fen
r5k1/1p4p1/2n1b2p/1pB1pp2/4B3/P5P1/1P3P1P/3R2K1 w - f6 0 27
assistant
e4g2