7Boom Free

------ What is it ------ 7Boom (or 7 Boom) is a game that puts to the test logic, mathematical and concentration skills. It is an ideal pastime for challenging friends and a great exercise to train the mind. ------ How to play ------ The goal is to reach the number 61 within two minutes. On the screen there are two button ("Next" and "BOOM!") and a number that starts from 1. You have to press the button "BOOM!" every time that the displayed number: - contains the number 7 - is a multiple of 7 - is composed by digits that summed or subtracted are equal to 7 In all other cases "Next" is the right answer. But beware!! If you select the wrong button, the counter is halved. There are three levels: beginner, expert and genius. Depending on the selected level, the number to reach is higher. ------ Version ------ This is the free version of the game, it is possible to play with number 7. With the full version it is possible to play with all number from 3 to 9. Any comment or advice is welcome :) Good Luck! Gighen