I only came across these nice puzzles a few months ago. A typical variety for this forum which has so many different types of sudokus.
I initially got stuck on the Anti-King Wraparound puzzle and my late evening glass of single malt (whisky) didn't help much. Then I came back to it today, early evening, and managed to spot the anti-Kings that I'd been missing before (I do them manually on my Excel worksheet), the hardest one to spot being
the naked pair {67} in R2C9 and R3C1, which eliminated 6,7 from R2C23.
tarek doesn't seem to have posted the solution to this puzzle.
The No Squares and No Tennis puzzles were both easy.
Having originally got stuck on the No 8 Knight puzzle; I've now had another look at it and realised I'd missed a knight move, then I needed a short forcing chain to force one placement which allowed me to finish it, so it felt a bit harder than Easy.