Somewhere you get those? Not just the 1-2 move thing you get here, but something longer?
I just had a 7 moves-tactical-puzzle. And I failed it on move 6.
I'd guess that with a higher rating they'd be more frequent.
The problem is that most tactics in chess is like 2-3 moves. Its rare that there is a 8-move combination which wins the queen. If you want to practice calculation very long sequences, pawn endgames will never be too easy for anyone.
Somewhere you get those? Not just the 1-2 move thing you get here, but something longer?