I’d been using the app for several weeks and it was updating my ELO score. Then I noticed that it reverted to ELO of zero and was giving me very low level (easy) puzzles. I tried to log out and back in again but the app just hangs after pressing “log in”. Maybe a server somewhere that is not responding?

Perfect chess puzzle app, it’s 100% free, no ads, no in-app purchases, p2p, p2w etc. There are so far no repeats of puzzles, so got to be a few thousand in there at least, you can select what area(s) you want to train in easily, it’s a simple interface and if you sign in it’ll keep track of your progress and rating and increase the difficulty to keep giving you a challenge. No privacy concerns as the app doesn’t collect any info. Superb app for improvement and training, highly recommend!

The developer of this software got everything exactly right. This is the best piece of chess software I have found to date. I wanted a chess app that gave me an endless number of chess puzzles that were essentially tied to my level of play. I didn’t want bells and whistles and confetti and music every time I solved a puzzle. I just want well constructed puzzles, with no silly pictures or elaborate backgrounds, free of bugs and that is what this app delivers. Bravo to the developer. Most excellent.

Has all the chess puzzles and tactics i could ask for. my only reason for 4 star is that there is no way to turn off audio in the app. so anytime i play while listening to music on headphones i get the audio from solving puzzles