Entitled "Suujin Taisen", you must place numbers on a grid according to rule being used such as linking two same numbers together and adding them up in quantities of 10. The catch is while you're trying to fulfil these conditions, you'll be up against another player so routes can end up being blocked out.

Watch out for Nintendo's number game on June 8th which will have Wi-Fi support.

Source:
• Famitsu