How to solve “Tough 18” wood puzzle

Solving a level 9 out of 10 puzzle.
Credits:
"Sappheiros - Dawn" is under a Creative Commons license (CC BY 3.0)
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[@user-tk2qr4gd2x]

Это есть профессиональный профессионализм ! =)

[@artysd4252]

Thank you so much 😊

[@aicrish8991]

very helpful! Thank you very much

[@joachimszepannek6117]

Thnk you so much 4 this vid!

[@iafs6756]

Thank so much epicjonny

[@helencn8]

Il me semble que ce n'est pas exactement le "Van der poel" aussi nommé le grand-père (ce qui n'enlève rien à la performance) pourriez-vous me confirmer ?