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
b1a2
b1h7
b1g6
b1f5
b1e4
b1d3
b1c2
b1d1
b1c1
e1c1
e1d1
e1f1
e1e4
e1e3
e1e2
f3d2
g1h1
g1g2
h3f1
h3g2
h3e6
h3f5
h3g4
h4h5
g5c1
g5d2
g5e3
g5f4
g5e7
g5f6
g5h6
g3g4
h2g4
h2f1
a1a6
a1a5
a1a4
a1a3
a1a2

## Board State Fen
r3r1k1/1qnnbppp/b1p1p3/2PpP1B1/3P3P/1p3NPB/1P3P1N/RQ2R1K1 w - - 2 21
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
b1a2
b1h7
b1g6
b1f5
b1e4
b1d3
b1c2
b1d1
b1c1
e1c1
e1d1
e1f1
e1e4
e1e3
e1e2
f3d2
g1h1
g1g2
h3f1
h3g2
h3e6
h3f5
h3g4
h4h5
g5c1
g5d2
g5e3
g5f4
g5e7
g5f6
g5h6
g3g4
h2g4
h2f1
a1a6
a1a5
a1a4
a1a3
a1a2

## Board State Fen
r3r1k1/1qnnbppp/b1p1p3/2PpP1B1/3P3P/1p3NPB/1P3P1N/RQ2R1K1 w - - 2 21
assistant
g5e7