The result was known already some time ago... but we've made some analysis of this incredibly tricky double-rook endgame - for what it's worth. Unfortunately the players were quickly gone so we couldn't get any reactions from them (yet).
Stronger may have been 32.Ke2! with the idea 32...Nxh2 33.Rf8 Ra7 (33...f5 34.g3+ Ke5 35.Re8+ Re6 36.f4+ Kxe4 37.Rxe6+; or 33...f6 34.Rxf6+ Rxf6 35.Nxf6 Kg3 36.Ke1) 34.Rfd8 Re7 35.g3+ Kf5 36.Kf2 and Black has to give material.
32...Kxe4 33.a4 Rac5 34.h3 Rc3 35.Re8+ Kf4 36.Rd4+ Kg5 37.Re5+ Kf6 38.Rb5 Rc2+ 39.Kg3 Re6 40.Rd3 Kg7
Threatening 41...Ree2... but is it really a threat?
Here even something like 41.Rf3 Ree2 42.Rxb6 g5 43.Rf1 was possible (41.Kf3 g5 42.g3 Rh2 is less clear).
Tickling Black on the kingside. It's surprising how irritating this can be, even though it doesn't bring any immediate dividends.
42...Ree2 43.Rg3 Re6 44.h5 Rd6 45.Rb4 g5
Some experts ventured that Black perhaps should not have reacted with this move. Now the h6-pawn becomes just a tiny bit weaker.
Opening the door for the white rooks! Shankland is quick to take profit.
47.Rc3! Re2 48.Rb4 Kf7 49.Rbc4
49.Rc7+ Re7 50. Rxe7+ should be winning too. In the single-rook ending Black has much less chances to draw, in general, because he cannot create counter-threats against the white king.
49...Ke6 50.Rc8 Rdd2 51.Rg3 Kf7 52.Rh8 Rf2 53.Rh7+
And Black resigned because of 53...Kf8 54.Rb7 Rd6 55.Rc3 Rd8 56.Rcc7 etc.
The sole winner of today!