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
a2a4
a2a3
g1h2
g1h1
f1b1
f1c1
f1d1
f1e1
a1e1
a1d1
a1c1
a1b1
c2c4
c2c3
e2d1
e2a6
e2b5
e2c4
e2d3
g2g4
g2g3
e3c1
e3d2
e3a7
e3b6
e3c5
e3d4
e3h6
e3g5
e3f4
f3e1
f3e5
f3g5
f3d2
f3d4
f3h2
f3h4
h3h4

## Board State Fen
r4rk1/ppp2pbp/2n3p1/3b4/8/4BN1P/PPP1BPP1/R4RK1 w - - 0 15
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
a2a4
a2a3
g1h2
g1h1
f1b1
f1c1
f1d1
f1e1
a1e1
a1d1
a1c1
a1b1
c2c4
c2c3
e2d1
e2a6
e2b5
e2c4
e2d3
g2g4
g2g3
e3c1
e3d2
e3a7
e3b6
e3c5
e3d4
e3h6
e3g5
e3f4
f3e1
f3e5
f3g5
f3d2
f3d4
f3h2
f3h4
h3h4

## Board State Fen
r4rk1/ppp2pbp/2n3p1/3b4/8/4BN1P/PPP1BPP1/R4RK1 w - - 0 15
assistant
c2c3