Reminds me of part of an IQ test - of course it's not really 'but' while being tested for an IQ assessment, this exercise is actually used... the idea is to see how long each puzzle takes to be finished - this is fun and the designer did very well... let me suggest a new edition with more challenging puzzles This puzzle game is a mental journey. You have to use your brain, or you just won't solve the puzzle. And it's fun for your mind and imagination if you like using them!!! Exciting to solve a puzzle, great fun, I recommend this app. Steal I really like the variety of games this app offers. Some have issues with ad frequency, but I personally find that a few seconds of ad now and then are bearable ​​to help developers. So far, I've only played the first of several wooden puzzle games offered and I like that. I gave it 5 because with such a wide variety, there would be a better chance of having something everyone liked.