No background needed · Interactive · Sourced
Read the I Ching,
one line at a time
Learn yin and yang, the trigrams, the 64 hexagrams, and primary, moving and resulting lines through diagrams, interaction and step-by-step practice. This site will not read a casting for you — it teaches you to read it yourself.
- 64
- hexagram pages, each with source text and structure
- 386
- line statements, each with its source marked
- 5
- source layers, never blended together
The eight trigrams
Three lines, two states, exactly eight combinations. Structure first, names after.
- QianHeavenqián
- KunEarthkūn
- ZhenThunderzhèn
- XunWindxùn
- KanWaterkǎn
- LiFirelí
- GenMountaingèn
- DuiLakeduì
Open the trigram builder and flip the lines yourself · why there are exactly eight
How this site teaches
01
Structure first, names after
The trigrams need not be memorized. Zhen is the one whose single yang line sits at the bottom, Gen the one where it sits at the top — hold the pattern and all eight follow.
02
You reason it out, then see the answer
Every step of a casting is visible: how three coins become 6, 7, 8 and 9, which line moves, how the resulting hexagram is generated.
03
Wrong answers get explained
Not just right or wrong, but which step went astray.
04
Sources labelled by layer
The Zhou Yi itself, the Ten Wings, classical commentary, this site’s own explanation and later systems are each marked, and never blended together.