so nice!
Berlin Blues!

Hello Bareilly. We both learned more about Rook and Pawn endgames.
White must follow-up on the 55 e6 Stockfish recommendation aggressively in order for that to work, ie; NOT
55 e6, c3 56 Kd3, c4+ 57 Kc2, b5 58 f5, Ra6 59 Kxc3, Ra3+ 60 Kc2, Rf3 61 Rf7, Ke8 62 f6, b4 and I do not see how White can make progress.
But rather 55 e6, c3 56 Ke5 ( not 56 Kf5, Ra4), c2 57 Kf6, Kg8 58 e2, c1(Q) 59 e8 (Q)+, Kxh7 60 Qg6+, Kh8 61 Qg7 mate
In recently concluded London Chess Classic 2015- Berlin Defence was the most popular opening among top rated Grandmasters.
Berlin Defence has a very solid reputation. If played without commiting any mistakes then result will invariably be a draw.
I played Berlin Defence as black against opponent "Horsesgalore" and after 64 moves game ended in a timid draw. But the game was not without its thrills- impossible to discover for mere mortals but evaluation by chess engine Stockfish shows the positional advantage swing from one player to another. Towards the end I (playing black) committed a blunder which should have cost me the game but my opponent missed it.