 Since then, players have learned much about using and guarding against this formation; however, some international games are still lost or won by the force of this tactic.In November 2018 it was successfully used by Ju Wenjun against Kateryna Lagno in game 4 of the FIDE Women's World Championship.The attack could have been refuted with perfect defense, but Lagno was unable to find it and resigned five moves later.