Kokoro Building Blocks Sudoku Board DX with Storage Wooden Board Tabletop 100 Questions and Answers 8 Piece Set of Calculation Mystery Brain Power

---------------------------------------------------------------------- 【Cautions for using electrical products】 When using electrical appliances, please note that the voltage is different from that of Japan, which may cause malfunctions. Since the plug type is Japan type(A or B type), please check the voltage and use a transformer. Please note that a transformer is different from a conversion adapter. We are not responsible for malfunctions caused by use without a transformer.

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- On the Sudoku board, number blocks from 1 to 9 are placed in several places before work begins, and the number blocks are placed based on that information, but this requires a lot of logical thinking ability. You can play alone, or if you play with several people, you can use it as a good communication tool. This is a game that can be played not only by adults but also by small children if they know the numbers. Thinking with your head and actually using your hands to place blocks can also help train your brain and hand functions. Furthermore, since there is only one correct answer, the sense of accomplishment and satisfaction you get when all the blocks are placed without error has a positive effect on your mental health. From this perspective, it can also be considered as training for thinking skills. It comes with a set of 50 questions supervised by Nanpremate of Magazine Magazine Co., Ltd., and there are 5 levels of difficulty, so everyone from beginners to experts can enjoy it.