I have recently started doing old ones over again - only the very hard ones from the archive... But it would be more zeitverschwending (time-wasting...) to be able to do new ...
One little next step could be to try to see where the 1 could go in the third lowest row - considering the fact that it has to be in the two lowest rows in the right and left lower "area" (I am not in ...
It didn't take me very long, but it's a few hours ago and I have a hard time explaining in detail how I did it. Generally I start with the numbers that seem to be most frequent (certainly not the 4 in ...