Carlsen's choice

With his passed a-pawn White of course wants to win, but Black is threatening 41...Nf2+ picking up the rook d1. Exchange sacrifice, flight forward or repeating move - what would you choose?
A) 41.Rxd4
B) 41.Kg2 Nf4+ 42.Kg3 Ne2+ 43.Kg4 Rf4+ 44.Kh5 Rf5+ 45.Kxh6
C) 41.Kg2 Nf4+ 42.Kh1 Nh3 (=)
Solution
1.d4 Nf6 1...f5 2.g3 Nf6 3.Bg2 e6 4.c4 c6 5.Nf3 d5 6.0-0 Bd6 7.b3 Qe7 8.Ne5 0-0 9.Nd2 a5 10.Bb2 Nbd7 11.Qc2 a4 12.Ndf3 Ne4 13.e3 a3! 14.Bc3 Nxe5 15.Nxe5 Bd7 16.Nxd7 Qxd7 17.c5 Bc7 18.b4 h5 19.Be1 e5 20.dxe5 Bxe5 21.Rd1 Qe6 22.f3 Nf6 23.Bh3 g6 24.e4 dxe4 25.fxe4 Bb2 26.exf5 Qxa2! 27.Bf2 g5 28.Rfe1 Qf7 29.Re6 Ng4 30.Bxg4 hxg4 31.Rg6+ Kh7 32.Rd7 Qxd7 33.f6 Qd1+ 34.Qxd1 Kxg6 35.Qd3+ Kh6 36.h4 gxh3 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 0-0 5.e3 d6 6.Bc4 Nbd7 7.0-0 Qe8 8.a4 e5 9.a5 e4 10.Ne1 h6 11.Bh4 c6 12.Bb3 Nh5 13.f3 exf3 14.Qxf3 Ndf6 15.Nd3 Bg4 16.Qf2 Be6 17.Bxe6 Qxe6 18.Qf3 g5 19.Bf2 g4 20.Qe2 Rae8 21.a6 b6 22.Rae1 Nd5 23.e4 f5 24.Qd1 fxe4 25.Rxe4 Qf5 26.Qxg4 Qxg4 27.Rxg4 Re2 28.Rd1 Nhf6 29.Rg3 Nh5 30.Rf3 Rxf3 31.gxf3 Ne3 32.Bxe3 Rxe3 33.Nc4 Rxf3 34.Nb4 b5 35.Na5 c5 36.Nbc6 Rf7 37.Nb7 Nf4 38.dxc5 dxc5 39.Nxa7 Bd4+ 40.Kh1 40.Rxd4 Ne2+ 40...Nh3! 41.Kg2! 41.Rxd4?? Rg7! 41.Rd2 Rg7! 42.Rg2 Nf2+ 43.Kg1 43.Rxf2? Bxf2 44.h3 Rg6 43...Ng4+ 44.Kh1 44.Kf1?? Ne3+ 44...Nf2+ 41...Nf4+ 42.Kg3 42.Kh1 Nh3 42...Ne2+ 43.Kg4 Rf4+ 44.Kh3! 44.Kh5 Rf5+ 45.Kxh6?? 45.Kg6 Rf6+ 46.Kh5 Rf5+= 45...Nf4! 44...Rf3+ 45.Kg4 Rf4+ 46.Kh3 Rf3+ ½–½
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Carlsen,M | 2865 | Bacrot,E | 2711 | ½–½ |
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