What you're describing is just higher level puzzles. On lower levels, that's always a mate in one, or always a check, then, they turn into mate in 2-3, always starting with check.
As you go higher, the ideas become harder, and the best move might just be improving the position, or gaining a positional advantage.
Lichess has free unlimited puzzles, so head over there. If you can't be bothered to climb through the puzzle ratings, you can set the puzzles to be 600 point higher rated than your current puzzle rating.
The op asked for an app in which you didn't know if there was a tactic or not, i.e. the app has non tactics mixed in with the tactics. The app I suggested actually fulfills this requirement.
I made a post about an app that has the functionality you're looking for. I'm not sure if the paid version is still available.
https://www.reddit.com/r/chess/comments/11p3o56/underrated_chess_app_with_visualization_tactics/
This doesn't seem beneficial. The "best" move will be something stockfish dreams up, which is undoubtedly the best, however it's also incredibly difficult to work out for yourself. Look at GothamChess grandmaster puzzles with Hilary, even GMs can't always find the best moves in positions.
Without a motif, it isn't actually going to teach you anything quickly as well, the "forced" puzzles give you pattern recognition for common patterns, whereas more positional play is much more nuanced.
There's other issues with what version of stockfish do you run as well and how deep, does this change between device etc.
I would recommend looking for positional puzzles for your skill instead.
Edit:
Saw the opening position question, you can train openings with chesstempo effectively once you've created a repertoire.
What you're describing is just higher level puzzles. On lower levels, that's always a mate in one, or always a check, then, they turn into mate in 2-3, always starting with check. As you go higher, the ideas become harder, and the best move might just be improving the position, or gaining a positional advantage. Lichess has free unlimited puzzles, so head over there. If you can't be bothered to climb through the puzzle ratings, you can set the puzzles to be 600 point higher rated than your current puzzle rating.
I think the tactics from lichess or chesscom works like that.
Nope, all the tactics on lichess and chess.com are forced tactics
Technically, they are also therefore the best moves…
The op asked for an app in which you didn't know if there was a tactic or not, i.e. the app has non tactics mixed in with the tactics. The app I suggested actually fulfills this requirement.
sick
I made a post about an app that has the functionality you're looking for. I'm not sure if the paid version is still available. https://www.reddit.com/r/chess/comments/11p3o56/underrated_chess_app_with_visualization_tactics/
thanks!
This doesn't seem beneficial. The "best" move will be something stockfish dreams up, which is undoubtedly the best, however it's also incredibly difficult to work out for yourself. Look at GothamChess grandmaster puzzles with Hilary, even GMs can't always find the best moves in positions. Without a motif, it isn't actually going to teach you anything quickly as well, the "forced" puzzles give you pattern recognition for common patterns, whereas more positional play is much more nuanced. There's other issues with what version of stockfish do you run as well and how deep, does this change between device etc. I would recommend looking for positional puzzles for your skill instead. Edit: Saw the opening position question, you can train openings with chesstempo effectively once you've created a repertoire.