Bf4

This “cheapo” could be the easiest solution to the Grünfeld…

… if it wasn’t for this crazy sacrifice which has to be taken quite seriously, especially since the following analysis by Stockfish hasn’t been tested in practice yet.

If this stuff isn’t your cup of tea, you can also try this line which was actually quite popular at the highest level for a while:

In practice you will most likely have to face this line, which has actually a bit of play left, especially for players with good technique.

Play it safe!