Sveshnikov - Stockfish goes nuts!

A few years ago I came across something remarkable. While investigating the Sveshnikov I suddenly discovered a line where Black won a correspondence game (ICCF). Winning in correspondence chess is very unique, but winning in correspondence chess as Black is almost unseen at the highest level. Of course, the Black win drew my attention, so I opened it. To my surprise Stockfish was giving an advantage for White in the position where I opened it. I went through the game. White was playing all the moves my Stockfish was giving. At somepoint White's advantage started to become beyond the extreme.

A peculiar incidence

To be honest, at this point I thought Black might just have won this game for a weird reason. Sometimes correspondence games are won because of a transmission error. For example, Rae1 is played instead of Rfe1. Well, I just went on clicking through the game, although White was already completely winning...

BOOM!!! Suddenly Stockfish changes the evaluation from 'totally winning for White' to 'White is getting mated'! (Yes, you read that correctly.)

Put your engine to the test!

Over the past years engines and hardware have become stronger and stronger, so let's find out if this flaw still exists.
Here is the Sveshnikov position:

You can do multiple tests: different engine, different hardware, long thinking, short thinking.
Did your machine give 28.Qd3? Please share your results in the forum!

Don't forget to checkout my previous blogposts:

• Scotch Gambit - a mind-blowing knight sacrifice! (27/08/2024)
• 1.Nf3 d5 2.c4 - a 5th move novelty! (26/08/2024)
• 1.Nf3 d5 2.g3 - Reversed Grünfeld 8...Rb8! (25/08/2024)

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Feel free to reach out to me or use the forum. Insights, questions and suggestions are very welcome!

~LittleSoapBubble