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
b2b4
b2b3
g2g4
g2g3
a2a4
a2a3
h1g1
d1e1
d1d3
d1d2
f1d3
f1e2
c1d2
c1c2
c1b1
h2h4
h2h3
e3d2
e3h6
e3g5
e3f4
f3e1
f3e5
f3g1
f3g5
f3d2
f3h4
c4b6
c4d2
c4d6
c4a3
c4a5
c4e5
d4a7
d4b6
d4c5
d4g7
d4f6
d4e5
d4d2
d4d3
d4h4
d4g4
d4f4
d4e4
d4d5

## Board State Fen
rnbq1rk1/pp2bppp/4p3/3n4/2NQ4/2P1BN2/PP3PPP/2KR1B1R w - - 3 11
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
b2b4
b2b3
g2g4
g2g3
a2a4
a2a3
h1g1
d1e1
d1d3
d1d2
f1d3
f1e2
c1d2
c1c2
c1b1
h2h4
h2h3
e3d2
e3h6
e3g5
e3f4
f3e1
f3e5
f3g1
f3g5
f3d2
f3h4
c4b6
c4d2
c4d6
c4a3
c4a5
c4e5
d4a7
d4b6
d4c5
d4g7
d4f6
d4e5
d4d2
d4d3
d4h4
d4g4
d4f4
d4e4
d4d5

## Board State Fen
rnbq1rk1/pp2bppp/4p3/3n4/2NQ4/2P1BN2/PP3PPP/2KR1B1R w - - 3 11
assistant
d4g4