Expanding the Kindle book-centric conceptual model
Some of the other titles that have been produced in the beta program are Electronic Arts’ Sudoku and Solitaire, and there are also four additional titles that have been developed by Amazon, like Blackjack and Minesweeper. But clearly they are all repositioned games from other platforms.
Leban claims the approach is wrong. The Kindle is fundamentally not a gaming platform–it’s an e-reader.
To that end, he doesn’t call his new title a game–it’s a puzzle book. It works in the same way as other puzzle books. You can start one puzzle and not finish it. Then move on to the next page and come back later to take a stab at the first one again. Users can change the difficulty after buying the book that fits their needs; otherwise, the puzzles get slightly more difficult as you work your way through the 100-page book.