There doesn't seem a purpose to the game if i just put my puzzles in the game and give the player some points.
I think its better if i implement a high score list and the goal is to get a high score with the puzzles available. Less is more.
I am thinking all puzzles are locked and have to be unlocked one by one.
After 5 completed puzzles all other puzzles will be unlocked since they are very difficult.
Before i had different difficulty levels. I am going to remove that, just 1 difficulty. But people can use as many hints as they want at cost of points.
I thought about people sharing the puzzle on internet, giving away the solution. But 2 players can have different puzzles.
I can call it a magazine so if people like the game i can make a second edition with more options.
Its going to set me back a few days. But i rather make a good product then save time. 
I better get started.