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
a1f1
a1e1
a1d1
a1c1
a1b1
a1a6
a1a5
a1a4
a1a3
a1a2
c4c5
d5c6
d5f7
d5e6
d5a5
d5b5
d5c5
d5d4
d5e5
d5d6
d3c3
d3d1
d3d2
d3h3
d3g3
d3f3
d3e3
d3d4
b3b4
h2h4
h2h3
g2g4
g2g3
f2f4
f2f3
g1h1
g1f1

## Board State Fen
2r3k1/1p2qppp/p1rp4/3Qp3/2P1P3/1P1R4/1P3PPP/R5K1 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
a1f1
a1e1
a1d1
a1c1
a1b1
a1a6
a1a5
a1a4
a1a3
a1a2
c4c5
d5c6
d5f7
d5e6
d5a5
d5b5
d5c5
d5d4
d5e5
d5d6
d3c3
d3d1
d3d2
d3h3
d3g3
d3f3
d3e3
d3d4
b3b4
h2h4
h2h3
g2g4
g2g3
f2f4
f2f3
g1h1
g1f1

## Board State Fen
2r3k1/1p2qppp/p1rp4/3Qp3/2P1P3/1P1R4/1P3PPP/R5K1 w - - 5 21
assistant
d3c3