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
d1c3
d1e3
e1e3
e1e2
f1d3
f1e2
g1h2
g1h1
b2b4
b2b3
c2c3
g2g4
g2g3
f3e2
f3h5
f3g4
f3a3
f3b3
f3c3
f3d3
f3e3
f3g3
f3f6
f3f5
f3f4
h3h4
a4a1
a4a2
a4a3
a4b4
c4b6
c4d2
c4d6
c4a3
c4e3
c4e5

## Board State Fen
4r1k1/1pq2pp1/p3bn1p/P1r1p3/R1NbP3/5Q1P/1PP2PP1/3NRBK1 w - - 5 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
d1c3
d1e3
e1e3
e1e2
f1d3
f1e2
g1h2
g1h1
b2b4
b2b3
c2c3
g2g4
g2g3
f3e2
f3h5
f3g4
f3a3
f3b3
f3c3
f3d3
f3e3
f3g3
f3f6
f3f5
f3f4
h3h4
a4a1
a4a2
a4a3
a4b4
c4b6
c4d2
c4d6
c4a3
c4e3
c4e5

## Board State Fen
4r1k1/1pq2pp1/p3bn1p/P1r1p3/R1NbP3/5Q1P/1PP2PP1/3NRBK1 w - - 5 21
assistant
b2b3