tarswelder0033: 39...c4 is not a blunder according the engines.
40.Rg7+ Kf6 (Rf7 41.Rxf7+ Kxf7 42.Fxc4+ Kf6 Black can defend because the e and h pawns are weak) 41.Rg4 Rc8 42.Bxc4+ Kf6 43.Kb3 Ra1 45.h4 Te1 46.Re4 Rc1 47.Bd3 Rb8+ 48.Ka2 Rd1 is equal.
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