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
b1b7
b1b6
b1b5
b1b4
b1b3
b1b2
g1h1
a2a4
a2a3
f1c1
f1d1
f1e1
d2c1
d2a5
d2b4
d2c3
d2e1
d2f4
d2e3
d2b2
d2c2
d2d1
d2e2
d2d4
d2d3
g2g4
g2g3
h2h4
h2h3
f3d1
f3e2
f3e4
f3h5
f3g4
d5d6
g5e3
g5f4
g5e7
g5f6
g5h4
g5h6

## Board State Fen
rn3rk1/ppq1pp1p/6p1/2pPb1B1/8/5B2/P2Q1PPP/1R3RK1 w - - 0 16
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
b1b7
b1b6
b1b5
b1b4
b1b3
b1b2
g1h1
a2a4
a2a3
f1c1
f1d1
f1e1
d2c1
d2a5
d2b4
d2c3
d2e1
d2f4
d2e3
d2b2
d2c2
d2d1
d2e2
d2d4
d2d3
g2g4
g2g3
h2h4
h2h3
f3d1
f3e2
f3e4
f3h5
f3g4
d5d6
g5e3
g5f4
g5e7
g5f6
g5h4
g5h6

## Board State Fen
rn3rk1/ppq1pp1p/6p1/2pPb1B1/8/5B2/P2Q1PPP/1R3RK1 w - - 0 16
assistant
d5d6