Larsen vs Spassky chess position

Spassky doesn’t mind that his knight on g4 is under attack. He plays 12…h4!, leaving it there and opening up the kingside. After 13. hxg4 hxg4 14. Rg1, he also brilliantly gives up the rook with 14… Rh1! The game continued with 15. Rxh1 g2 16. Rf1 Qh4+ 17. Kd1 gxf1Q+, and Larsen capitulated.