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
d3d1
d3d2
c3c4
e3f4
e3f2
e3e2
e3d2
f3g4
f3f4
h3g4
h3h4
d4c2
d4c6
d4e2
d4e6
d4b3
d4b5
d4f5

## Board State Fen
5k2/5p2/5np1/3p4/3N2p1/r1PRKP1P/8/8 w - - 0 39
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
d3d1
d3d2
c3c4
e3f4
e3f2
e3e2
e3d2
f3g4
f3f4
h3g4
h3h4
d4c2
d4c6
d4e2
d4e6
d4b3
d4b5
d4f5

## Board State Fen
5k2/5p2/5np1/3p4/3N2p1/r1PRKP1P/8/8 w - - 0 39
assistant
h3g4