MENTAL CALCULATION

This game is a free puzzle game that is slightly similar to SUDOKU. The purpose of this game is to open all cards and panels. This game would be effective for developing your ability of MENTAL CALCULATION. Challenge yourself in this new ,fun and intellectual puzzle game!! **** Game rule **** Pick a card and set it to a blank panel that might have the same number of the card. There are some hints as the sums of vertical,horizontal,and diagonal numbers on the panel. As you finish opening all cards and panels, you complete a single play. Compete the total time of 3 plays and a lap time. **** Difficulty settings **** 2 difficulty settings are available. (1)Number of initial opened cards(1 card mode is very hard. But 6 cards mode is very easy. ) (2)Display or not display of the total number of diagonal of the panel **** Your best time **** Your top 3 records and the best lap are recorded in your device. **** Offline play **** This game always can operate offline.