A study like position came up in my game, look at that

You can try and find the only winning move that even stockfish can't find in that position :P
I explain it lower down.



I was in an economy class when I started this 25+25 game against a lower rated opponent. At the beginning, I was not concentrated on the game, but when I lost a piece like an idiot, I started focusing.
Towards the end after he played 52... Be2, I started wondering if I could win his f5 pawn and so I calculated that very nice line that makes the white position a winning one because of a future zugzwang. Any possible way he has to avoid the zugzwang clearly loses. It goes like this.
53. Rg8+ Kh5
54. Rg5+ Kxh4 (comp realises its winning)
55. Rg2 Bg4 (or f1)
56. Rh2+ Bh3
57. Rh1 a5 (zugzwang)
58. Rh2 a4
59. Rh1 a3
60. Rh2 a2
61. Rxa2
And you can check it out for yourself, but the bishop is gonna be lost in the next 2-3 moves.
I don't want to sound pretentious, but it is so nice to see that I calculated that line in only 84 seconds till the end understanding that it was zugzwang and that the bishop would be lost while stockfish has to be shown the position after 54. Kxh4 to understand it is winning.

Hope you enjoyed :)

Very nice. I would be proud of it if I found it in a classical game. The case illustrates once more that Stockfish is weak in endgame without access to its table bases.

Well yeah, sometimes in classical time controls, I don't allow myself to calculate such long and exciting lines, and I got a bit lucky that no tricky defense stepped in, because I would not have spotted it in the state of mind I was.
I think the reason stockfish doesn't spot it has to do with its assessment after Rg5+ where it drops from over a point advantage to 0.00 and stop exploring that line, which make it miss the zugzwang a few moves later.