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
c1c2
c1b1
d1g1
d1f1
d1e1
h1e1
h1f1
h1g1
h1h2
d2c4
d2e4
d2b1
d2f1
b3b4
c3c4
f3e2
f3c6
f3d5
f3e4
f3h5
f3g4
f3d3
f3e3
f3f1
f3f2
f3f5
f3f4
g3g4
h3g1
h3g5
h3f2
h3f4
d4d5

## Board State Fen
2kr3r/1ppq3p/pnn3p1/5p2/3P4/1PP2QPN/1P1N2P1/2KR3R w - - 0 18
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
c1c2
c1b1
d1g1
d1f1
d1e1
h1e1
h1f1
h1g1
h1h2
d2c4
d2e4
d2b1
d2f1
b3b4
c3c4
f3e2
f3c6
f3d5
f3e4
f3h5
f3g4
f3d3
f3e3
f3f1
f3f2
f3f5
f3f4
g3g4
h3g1
h3g5
h3f2
h3f4
d4d5

## Board State Fen
2kr3r/1ppq3p/pnn3p1/5p2/3P4/1PP2QPN/1P1N2P1/2KR3R w - - 0 18
assistant
h3f4