The Kostic Trap is also known as the Blackburne-Shilling trap since Joseph Henry Blackburne used it to win shillings from amateurs. It is a dubious trap since white can easily avoid it. It is a offshoot of the Italian Game and has been used to beat countless players. Here is the trap:This trap is not good since white can avoid it as I explained in the game. Hope you enjoyed it and please add comments and edit.