Humans can also be disappointing and interesting. I like to do Lichess puzzles not logged in, which mostly gives puzzles with a Lichess puzzle ratings in the 14

Humans can also be disappointing and interesting. I like to do Lichess puzzles not logged in, which mostly gives puzzles with a Lichess puzzle ratings in the 1400-1600 range with some going down to around 1200 or up to the 1700s. Presumably that is the range the average Lichess player is in. For those who have not used Lichess, the puzzles it gives (unless you ask for a specific type) do not tell you what the goal is (mate, win material, get a winning endgame, save a bad position, etc) or how many moves it will take. Here are some puzzles it has recently given me and their current ratings. These all have something in common. 1492 https://lichess.org/training/KsrR0 1506 https://lichess.org/training/RwLfy 1545 https://lichess.org/training/TzZdx 1557 https://lichess.org/training/IJfT7 1564 https://lichess.org/training/oOMz4 1604 https://lichess.org/training/uRRck 1661 https://lichess.org/training/jBrLX 1719 https://lichess.org/training/cpKAM What they have in common is that they are all mate in one. I have seen composed mate in ones that puzzled even high rated players, but they involved something unusual like the mating move was an en passant capture. None of the above puzzles are tricks like that. So how are enough people failing them for their ratings to be that high?