New omopa puzzles (rules and examples):
https://www.janko.at/Raetsel/Nikoli/Omopa.htm
PCN 061: Shirokuropai • Chiykomaka • Okunimeguri
PCN 062: Happorinku • Mensekirinku • Shikakurinku
PCN 063: Kazurin • Purasurinku • Heyarin • Sankuchuari
PCN 064: Happokanjo
PCN 065: Omaomeguri • Kantorīrodo • Norenwake
PCN 191: Nakaying Rinku • Sumijiao Chen • Yajirikkusu • Kurarin • Shinmetorio
PCN 192: Tasuha yajirikkusu • Tetorochen-K • Baransurinku
PCN 193: Meronpai • Renmoji