[nilslindemann]

Like my answer below, that's wrong. Even I have achieved a few draws or even wins against Stockfish in training games, and I am FM strength. From time to time you are happy to reach a simple rook endgame which happens to be won and the engine doesn't anticipate that (horizon effect). You still draw or lose 90% of those but you win 10%.

[galkk]

Either the engine was misconfigured, the hardware you were playing on was glitching or you are omitting something. There is no chance in the world that you can beat stockfish in standard time control.

[nilslindemann]

Just because you can not do it it does not mean that others can not do it. If you search for Lichess games where strong players play against (edit: strongest!) Stockfish (which, admittedly is not the full throttle Stockfish) you will find that Stockfish by far does not win all the time. Such is a claim which only inexperienced chess beginners and Stockfish fanboys make. Stronger players know that Stockfish is relatively better, and by a far margin, but – obviously – does not win all the time due to the huge drawing range in chess. Admittedly, winning a game gets more and more difficult with every year. And, to make you happy, I have never beaten Lc0.

[baumy]

Would you be willing to bet money that you can beat a properly setup stockfish, no piece odds and even time controls? I'll give you literally any odds you name and let you try an unlimited number of times until you give up. 100% serious.

P.S: You should not take this bet. You will lose. You are mistaken if you think you beat stockfish.

[nilslindemann]

The only bet I would take is that I can draw against Stockfish. But I am in general not betting. I also don't have the time currently.

[nilslindemann]

Further, if the engine does not use an opening database and the thinking time per game is the same, then the engine will usually make the same moves, so you can learn from your errors. There are just a few chess engines which "learn" per default and therefore change their moves, like BrainLearn.

[LogicalRisk]

That's an extraordinary claim. What level was Stockfish and what were the settings for these training games?

[nilslindemann]

It is also not extraordinary to do that.

I have achieved these results around 2015, sitting at home, relaxed. I was not in a match situation observed by millions. Such a situation can knowingly lead to blunders like Kramniks overlook of mate in 2.

I also sometimes "cheated" by aborting the game when I was tired and continuing it the next day (if at all). That's what the player in a match can not do.

I also sometimes restarted a game at a specific position. Can also not be done in a match. Finally, they used better hardware in these matches. I had eight threads on my old Laptop and I used four of them. The Laptop itself was bought around 2005. Between 2000 and approximately 2020 I trained every day and I was on my peak. I am still around 2400 on Lichess today, without training.

So, I hope it does not sound that extraordinary any more. It isn't. Maybe it is now, but not then.

[nilslindemann]

I do not know the time controls anymore, but I always use the latest Stockfish with all available threads. No opening book, but I do not repeat lines to take advantage of that, because I play to train calculation. I guess hash was the (for my setup) normal 4096 MB.