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
a1a3
a1a2
b1a3
b1d2
c1h6
c1g5
c1f4
c1e3
c1d2
d1b3
d1c2
d1e2
d1d3
d1d2
e1e3
e1e2
f1a6
f1b5
f1c4
f1d3
f1e2
g1h2
g1h1
b2b4
b2b3
g2g4
g2g3
c3c4
f3e5
f3g5
f3d2
f3h2
f3h4
h3h4
a4a5
d4e5
d4d5

## Board State Fen
r1bqr1k1/1pp2ppp/pb1p1nn1/4p3/P2PP3/2P2N1P/1P3PP1/RNBQRBK1 w - - 2 12
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
a1a3
a1a2
b1a3
b1d2
c1h6
c1g5
c1f4
c1e3
c1d2
d1b3
d1c2
d1e2
d1d3
d1d2
e1e3
e1e2
f1a6
f1b5
f1c4
f1d3
f1e2
g1h2
g1h1
b2b4
b2b3
g2g4
g2g3
c3c4
f3e5
f3g5
f3d2
f3h2
f3h4
h3h4
a4a5
d4e5
d4d5

## Board State Fen
r1bqr1k1/1pp2ppp/pb1p1nn1/4p3/P2PP3/2P2N1P/1P3PP1/RNBQRBK1 w - - 2 12
assistant
b1d2