Android download https://play.google.com/store/apps/details?id=weilican.ks
Html5 samples https://smallworld.idv.tw/game/ks/aws.html
- learn how to solve soduku step by step
- technique: Naked Single, Hidden Single, Pointing, Claiming, Naked Subset, Hidden Subset, X-Chains, XY-Chains, XYZ-Chains
