Recommend me books that have a Challenge To The Reader part
I'm looking for any and all fair play murder mystery books that have the Challenge part.
I think I've already read everything with a challenge written before 1980
I've read Soji Shimada and Alice's works
I've read Tom Meade (and I couldn't solve any)
I've read Ben Stevenson
I couldn't get into Martin Edwards
I've read a couple of Janice Hallett's books and I think the all her books are the same book. I've read the one with the >!phials !<one about >!ww2 gold!< and summer camp. I didn't bother reading the rest.