Hey everyone! This is my first post in #CosinesGroup, and I really don't know what to write here. I hope my post doesn't sound too spammy. Anyways, I recently stumbled upon this awesome app for iOS which I'd like to share with the community.
Most of you have probably heard of Nim games. If not, you should check it out here. There's another version of Nim, called Misère nim, where the last person to remove a stone loses.
The app I found today, Ultimate Nim is designed to play a game of Nim with the user. You can switch modes from Normal Nim to Misère Nim. You can also choose a suitable difficulty level.
Unlike most of the other puzzles / games available in AppStore, Ultimate Nim always starts with a winning position, which essentially means you can always win if you play optimally! You just have to figure out a winning strategy, and that's your challenge! ;)
*P.S: * Note that this app isn't free, it costs \($ 1\). That isn't too costly, I believe.