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
d1b3
d1c2
d1h5
d1g4
d1f3
d1e2
g3g4
a4a5
d4e3
d4d3
d4c3
h4h5

## Board State Fen
8/1p2k3/1p2p1pp/1P1bPp2/P2K3P/6P1/8/3B4 w - - 1 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
d1b3
d1c2
d1h5
d1g4
d1f3
d1e2
g3g4
a4a5
d4e3
d4d3
d4c3
h4h5

## Board State Fen
8/1p2k3/1p2p1pp/1P1bPp2/P2K3P/6P1/8/3B4 w - - 1 39
assistant
d4e3