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
b1a1
b1e1
b1d1
b1c1
b1b8
b1b7
b1b6
b1b5
b1b4
b1b3
b1b2
f1c1
f1d1
f1e1
g1h1
a2a4
a2a3
g2g4
g2g3
h2h4
h2h3
f3d1
f3e2
f3e4
f3h5
f3g4
d5b3
d5c4
d5a8
d5b7
d5c6
d5e4
d5f7
d5e6
d5c5
d5d4
d5f5
d5e5
d5d6
g5c1
g5d2
g5e3
g5f4
g5e7
g5f6
g5h4
g5h6

## Board State Fen
r1q2rk1/p3pp1p/3b2p1/2pQ2B1/3n4/5B2/P4PPP/1R3RK1 w - - 5 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
b1a1
b1e1
b1d1
b1c1
b1b8
b1b7
b1b6
b1b5
b1b4
b1b3
b1b2
f1c1
f1d1
f1e1
g1h1
a2a4
a2a3
g2g4
g2g3
h2h4
h2h3
f3d1
f3e2
f3e4
f3h5
f3g4
d5b3
d5c4
d5a8
d5b7
d5c6
d5e4
d5f7
d5e6
d5c5
d5d4
d5f5
d5e5
d5d6
g5c1
g5d2
g5e3
g5f4
g5e7
g5f6
g5h4
g5h6

## Board State Fen
r1q2rk1/p3pp1p/3b2p1/2pQ2B1/3n4/5B2/P4PPP/1R3RK1 w - - 5 20
assistant
d5a8