Another mistake, after which White obtains a typical good knight versus bad bishop and is even a pawn to the good.

31…Rxc1 32.Rxc1 exd5 33.Nc6 Rc8! 34.Bxd6 Bb7 leaves White only slightly better.

And Gligoric neatly converted his edge:

White maintains an initiative. This endgame from the Queen’s Gambit Accepted proves surprisingly uncomfortable for Black. Also without queens White has more than sufficient activity!

By tactical means White preserves the pair of bishops.

17…h6 18.Bh4 Rae8 19.Rae1 Rxe3 20.Rxe3 Nce5 21.Bb3 c6 22.Bg3

A position of devious simplicity. Having examined some lines, you will soon reach the conclusion that Black’s pieces are in fact terribly tied up.

And soon Black had had enough.

With the king as the major target in the battle of the major pieces, here the vulnerable black king should have prompted White to look for the attack.

36.Qe3 was the obvious move, when Black is immediately in big trouble. For example: 36…Rg6 37.g4!.