Chiffres et des Lettres, Des - L'Entrainement Cerebral Maximum! (France), or ナンプレ！脳トレワークス in Japanese, is a Nintendo DS game released in France in 2008. The game is based on the popular French TV show of the same name, and is designed to help players hone their problem-solving skills. The game is divided into three main sections: 'Lettres', 'Chiffres', and 'Mélange'. In the 'Lettres' section, players must solve word puzzles by making words out of the letters given. The 'Chiffres' section challenges players to solve math problems, while the 'Mélange' section combines both the letter and number puzzles. Players can choose to play alone or challenge friends in the game's multiplayer mode. In single-player mode, they can select from one of four difficulty levels, ranging from beginner to expert. The game also includes a tutorial mode to help players understand the game's mechanics. With its challenging puzzles and fun multiplayer gameplay, Chiffres et des Lettres, Des - L'Entrainement Cerebral Maximum! (France) is an enjoyable game for players of all ages.