Black to move

1) +2.15 (40 ply) 38...Rg6 39.Nd6 Rxg3 40.Nxc8 Rxc8 41.hxg3 Bc4 42.Bd3 Nxd3 43.Rxd3 Rc5 44.Rd4 b5 45.g4 Kf8 46.f3 Rc6 47.Kf2 Re6 48.Re1 Rc6 49.e4 dxe4 50.Rdxe4 g6 51.Rd4 Kg7 52.Ree4 Be6 53.Re5 Rb6 54.Kg3 Bc4 55.f4 Rc6 56.g5 Re6 57.Rxe6 Bxe6 58.Rd6 hxg5

2) +2.59 (40 ply) 38...g6 39.Nxh6+ Kf8 40.Rxd5 Bb7 41.Ng4 Rfc6 42.Rcd1 Ne6 43.Ba2 Rc1 44.Rd2 Rxd1+ 45.Rxd1 Rd7 46.Rf1 Bd5 47.Qh3 Ke7 48.Bxd5 Rxd5 49.e4 Rh5 50.Qd3 Qd8 51.Qe2 Nd4 52.Qc4 b5 53.Qb4+ Ke6 54.Kh1 Rh4 55.f3 f5 56.exf5+ gxf5 57.Re1+ Kf7 58.Rd1 fxg4 59.Rxd4 Qc7 60.Rf4+ Kg6 61.h3 Qc1+ 62.Kh2 g3+ 63.Kxg3 Rxf4 64.Qxf4

3) +4.01 (39 ply) 38...Ne6 39.Ne7+ Rxe7 40.Rxc8+ Bxc8 41.Qd6 Rb7 42.Rc1 Nf8 43.Qd8 Be6 44.Qa8 Re7 45.Qxa4 Bd7 46.Qd4 Rd6 47.Qb4 Ree6 48.Rd1 Be8 49.Bf5 Rf6 50.f4 Rd8 51.Qe7 Rfd6 52.Rc1 Ng6 53.Bxg6 R6d7 54.Qe5 fxg6 55.Rc7 Kf8 56.Rxd7 Rxd7 57.Kf2 b5 58.g4 Kf7 59.Ke2 Rd8 60.Kd3 Kg8 61.Kd4 Kh8 62.Kc5 Kh7

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60.0 minute analysis by Stockfish 9 v010218