I think after the King takes the bishop it wants you to play Qe5+ allowing you to capture the bishop on b5 and giving you an attack on b2 and the potential to build an attack on f1. Would also allow your knight to go to e5 harassing the Queen
Don't get the computer advice
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First of all, i am a beginner
Why is my move a mistake, and why does the computer adviced me to sacrifice my bishop instead ?
Thx !!