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
g1h1
g1f2
g1f1
b2a1
b2c1
d2d4
d2d3
g2f1
g2f3
g2h1
g2h3
h2h3
a3a4
b3b4
c3a5
c3b4
c3e5
c3d4
c3c1
c3c2
c3d3
c3c5
c3c4
g3g4
h4g6
h4f3
f5e5
f5f1
f5f2
f5f3
f5f4
f5h5
f5g5
f5f7
f5f6

## Board State Fen
r2qr1k1/p2n1ppp/1p6/2p1nR2/4P2N/PPQ1P1P1/1B1P2BP/6K1 w - - 3 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
g1h1
g1f2
g1f1
b2a1
b2c1
d2d4
d2d3
g2f1
g2f3
g2h1
g2h3
h2h3
a3a4
b3b4
c3a5
c3b4
c3e5
c3d4
c3c1
c3c2
c3d3
c3c5
c3c4
g3g4
h4g6
h4f3
f5e5
f5f1
f5f2
f5f3
f5f4
f5h5
f5g5
f5f7
f5f6

## Board State Fen
r2qr1k1/p2n1ppp/1p6/2p1nR2/4P2N/PPQ1P1P1/1B1P2BP/6K1 w - - 3 21
assistant
d2d4