Read four corners, find four digits, and discover Chinese characters through shape.

The Four-Corner Method was developed by Wang Yun-wu to help people locate Chinese characters even when they do not know their pronunciation or radical.

By observing the upper-left, upper-right, lower-left, and lower-right corners of a character, learners convert visual stroke patterns into a four-digit code.

This interactive learning game transforms a traditional dictionary method into an engaging challenge combining visual recognition, spatial awareness, memory, and numerical coding.

V2.1 includes 700 Chinese characters across three learning levels:

• Entry: 27 characters / 5 questions
• Basic: 200 characters / 10 questions
• Advanced: 500 characters / 20 questions
• Chinese and English interface
• Bopomofo, Hanyu Pinyin, and brief English meanings
• Bilingual history and Quick Guide
• Search by character, Bopomofo, pinyin, meaning, or code
• Instant feedback, scores, and celebration effects
• Responsive design for desktop and mobile
• Local-only use with no uploads, tracking, or analytics

A meaningful way for Chinese learners, students, seniors, and character enthusiasts to explore the structure, culture, and visual logic of Chinese writing.

https://mariarlee.github.io/AI-Mind-Care-Four-Corner-Challenge/