Look for differences and cultivate observation and curiosity to your children! ▶ Helps to improve the ability of various children to develop You can naturally cultivate observation, concentration, and curiosity while looking for other points in the figure. While achieving over 40 stages, intelligence, creativity, and problem-solving skills are also increasing. ▶ Deletion of wrong number of times and time limit Even if it is difficult, it is okay, and you can challenge at any time. The ch