With point B at the .886 retracement this looks like a deep crab to me, putting the entry point quite a bit higher than that.
Alexander_Nikitin
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Butterfly's B may go past 88.6 all the way to 100. But it must not close beyond 88.6. I don't know what is "deep crab", I never tested it. So I can't say if it works. Ordinary crabs never touch 78.6 at B and never touch 61.8 at C. Moreover the completion of your "deep crab" is connected with the structure level breakout. Once the structure is broken we are likely to see further upward move. Who knows how it works this time, but statistically butterfly's are very profitable.