I have listed some analysis on Euwe's refutation in the Blackmar Diemer gambit ( bear with me - it's the final part... )
After careful analysis, I believed the line discussed below offers white the best chances.
Feel free to analyse, comment and improve on it in your own games.
That's also what our favorite author Tim Sawyer did, his suggestion 9.Ne5! Bd6 10.Rf1 Qe7 11.Nxd7 Nxd7 12.Bxd7 Qxd7 13.dxc5 Bxh2 14.Qxd7+ Kxd7 15.Rxf7+ Kc6 16.000 Be5! 17.Re1 ( "with slightly better endgame for White" - Tim Sawyer ). The problem with this line is that an awful lot of pieces have been exchanged after 17...Bxc3 18.bxc3 Rae8 19.Rxg7. It will obvioulsy require master level skill to convert this rook endgame into a win for either side - something the average Blackmar Diemer gambiteer will not like so much.
So keep on sending in these comments - and keep on attacking that enemy king !