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
d5a2
d5b3
d5c4
d5a8
d5b7
d5c6
d5f3
d5e4
d5f7
d5e6
d5a5
d5b5
d5c5
d5d1
d5d2
d5d3
d5d4
d5f5
d5e5
d5d8
d5d7
d5d6
f2f4
f2f3
a4a5
b2b4
b2b3
e3e4
g2g4
g2g3
g1h1
h2h4
h2h3
f1b1
f1c1
f1d1
f1e1
a1e1
a1d1
a1c1
a1b1
a1a3
a1a2

## Board State Fen
r4rk1/5pp1/pp3q1p/3Q1p2/P7/4P3/1P3PPP/R4RK1 w - - 1 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
d5a2
d5b3
d5c4
d5a8
d5b7
d5c6
d5f3
d5e4
d5f7
d5e6
d5a5
d5b5
d5c5
d5d1
d5d2
d5d3
d5d4
d5f5
d5e5
d5d8
d5d7
d5d6
f2f4
f2f3
a4a5
b2b4
b2b3
e3e4
g2g4
g2g3
g1h1
h2h4
h2h3
f1b1
f1c1
f1d1
f1e1
a1e1
a1d1
a1c1
a1b1
a1a3
a1a2

## Board State Fen
r4rk1/5pp1/pp3q1p/3Q1p2/P7/4P3/1P3PPP/R4RK1 w - - 1 21
assistant
a1c1