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
a1b1
a1a3
a1a2
c1d2
d1b3
d1c2
d1e2
d1d3
d1d2
e1e2
e1d2
f1c4
f1d3
f1e2
h1g1
b2b4
b2b3
g2g3
h2h4
h2h3
c3b1
c3b5
c3d5
c3a2
c3e2
c3e4
e3e4
f3e5
f3g1
f3g5
f3d2
f3h4
a4a5
d4d5

## Board State Fen
r2qkb1r/pp2pppp/n1p2n2/8/P1pP2b1/2N1PN2/1P3PPP/R1BQKB1R w KQkq - 1 7
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
a1b1
a1a3
a1a2
c1d2
d1b3
d1c2
d1e2
d1d3
d1d2
e1e2
e1d2
f1c4
f1d3
f1e2
h1g1
b2b4
b2b3
g2g3
h2h4
h2h3
c3b1
c3b5
c3d5
c3a2
c3e2
c3e4
e3e4
f3e5
f3g1
f3g5
f3d2
f3h4
a4a5
d4d5

## Board State Fen
r2qkb1r/pp2pppp/n1p2n2/8/P1pP2b1/2N1PN2/1P3PPP/R1BQKB1R w KQkq - 1 7
assistant
f1c4