Quote:
Originally Posted by Punker
This is called the Blackmar Diemar gambit...no idea what the "holosar" trap is. It's known to be very very dubious.
It comes from a ridiculous gambit within a gambit called the Ryder gambit. Basically when White offers his King's Bishop pawn instead of recapturing NxP, White recaptures QxP. Now White's Queen's Pawn is hanging and White counts on QxP, where play will follow B-K3, Q-N5, O-O-O, B-N5? White plays N-N5 with many nasty threats and this is the Halosar trap. Basically if Black does ANYTHING else (either not capture the pawn initially or not play Q-N5) then White is completely losing. You play the Ryder Gambit in hopes of pulling off the Halosar trap and if you don't you can just resign.
This gambit/trap in addition to being unsound NEVER works. No one ever plays QxP regardless of their skill level. Weaker players smell a rat that you're offering the Queen's pawn for free and don't want to play the line they know you want them to play. Stronger players just know to not fall so far behind in development when they already have a pawn in hand and White's own development is hindered with the ridiculous QxP