Benko/Volga Gambit
Online blitz games are not constituting the most reliable sample, but from my own experience I have a strong impression that Benko (or Volga) Gambit is definitely a scarecrow for White 1.d4 players! In many cases, my opponents either avoided accepting the gambit or sidestepped the opening altogether.
Those that do dive into the main lines with 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 are most likely to be influenced by the recent theoretical manuals that claim small advantage to White or at least “Black is experiencing some problems” in the fianchetto variation - specifically with Epishin continuation 6. Nc3 Bxa6 7. g3 Bg7 8. Bg2 d6 9. Nf3 Nbd7 10. Rb1. While this can be a powerful weapon at the IM and higher level, I am not sure whether club players are armed with enough of patience to continue beyond the theoretical lines. Black should accurately follow recommended solutions, probably best summarised by Grandmaster Gawain Jones in Everyman book Dangerous Weapons: The Benoni and Benko: Dazzle your opponents!
