Its a pin
Is this a skewer?
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For whatever it may be worth these are my thoughts. First a skewer is higher valued piece inline with a lower value piece. The higher rated piece being attacked, must move sacrificing the other piece, or exchange at a loss. A pin is the opposite. The lower value piece is in front of a higher value piece and is unable to move without greater loss/ illegal in the case of a king. However the entire point of pinning a piece, is to make sure it does not move. What is taking place with 26 . .... Qh1+ you are making sure (forcing) the Knight to move. This is the exact opposite of a pin. Three tactics come to mind which are to me somewhat similar, Attraction, Decoy, and Deflection. Deflection by my reading appears to more so coincide better than the other two, with what is taking place in your example.
Something you may wish to read by @blueemu in a thread talking about all three.
https://www.chess.com/forum/view/general/whats-the-difference-of-a-decoy-attraction-and-deflection#:~:text=With%20Decoying%2C%20the%20focus%20is,of%20protection)%20can%20be%20attacked.&text=Thanks%20for%20the%20correction%20%40blueemu.
In this situation, unlike a normal skewer, the lower-value piece was forced to move, causing the higher-value piece behind it to be captured. A similar situation came up while I was playing chess.