Chess Problems

I see myself spending hours on this solving the problems

I was looking for mid game magic by Tal

I would consider myself an armchair enthusiast for the game. This is an excellent app for anyone who wants to challenge their skills. As you resolve the scenarios, new ones pop up (hence you are given 16 scenarios and 100+ as you progress). The fact that you are *not* given a solve function or all 100 scenarios is an added bonus -- it forces you to think, resolve, and only then do you get to apply those lessons. Try sitting in a pub/bar talking chess over a pint... trust me, it's worthwhile.

At $0.02 per lesson, this was well worth the price of admission. If you have even a modicum of enthusiasm for chess, the freebie sells you on the real deal. Truly a great app!

I down loaded the software and love it. I am a fellow of the British Chess Problem Society and would recommend it any problemist. They have dug up some of the oldest problems and revitalized them in a new format. I love that there is no "solve" button as it makes you really think it out. Neither, Chess nor Life have such a button and this software if better without it!

Only has 16 puzzles, not 100 - as advertized. Why lie?
The problems are boring. No tips, no variations, no PGN.
If you like chess puzzles, buy Chess Quest, which has almost 100 times more puzzles of higher quality, and which is along with Versus Chess snd Caissa is my favorite chess app

How can I be sure these can be solved? I would like a hit or solve button.

I like chess, have played on and off for 20 years... definately not an amateur...
I tried Beginner level in the app, i went through the first 20 problems, 2 of them took 5 minutes after i gave up and came back [5min total], others took 20seconds, some consecutive ones were too similar.
I got the first problem on Level 2 [there are 4 levels]...
I like Chess Quest by Crazy Zebra a lot more [i gave it 5 stars not because it's perfect but because it's fun for hours and i learn something, unlike this one, endgame, always endgame.. and getting stuck] -- the reason is that when i get stuck, there is a Hint button or if you start moving the wrong piece, it doesn't let you. In here, you're on your own, so out of the 4 problems available i might decide i don't care for any of them, and 1) there is no hint to help me and 2) there is no way to see other ones -- so i get stuck, bored, i put in as much effort as i want to.

but it gets boring. If the timer was showing as i think [as is it just tells you afterwards how much time you took, no way to tell if going back and forth if the timer got stopped/started properly, looks like it is]

but the main point is this is just the mate-in-2 or 3 or 4 moves. More exciting would be middle game problems "White to play and win in 3" where there would be no mate but it would be a winning move combo. "Bobby Fisher's Outrageous Chess Moves" was a great book, it had endgame it had middlegame, and 100 problems in total with a whole variety.
In this App the Player and Year are listed, but not who the other player was (both players should be listed), but the main point is about lack of variety, it's always the same last few moves in a game, and that's not enough variety for a great game like chess, in all of these situations it's already a won game so mate in 2 or mate in 10 doesn't matter, mate is coming.
The interface is good, it's ok at $1, but not at $3, and this might be an OK app for me, but not the one i would make my favorite. I will keep looking for middle-game chess problems...
For those interested, "Versus Chess" and "Magnus Chess Online" are for playing chess online against other people [flaws with both, but the best and only ones for now].