The Book of Changes · 64 hexagrams · 384 lines
Hold one question in mind and toss three coins six times. The server makes every toss with a cryptographic random source; the coins on screen only show you the result.
Hexagram 7
Hexagram of the day
師：貞，丈人，吉无咎。
Sze indicates how, in the case which it supposes, with firmness and correctness, and (a leader of) age and experience, there will be good fortune and no error.
One of the 64, picked by today's date for you to read — not a casting for you.
The I Ching library
Every hexagram with its Judgment, Commentary, Image and six lines in Chinese, Legge's 1882 translation and a plain-language note.
Learn
What a hexagram is, what the Judgment, Image and line texts do, how to read a cast with or without changing lines, and which translations to trust — step by step.
How three coins build an I Ching hexagram: coin values, the numbers 6 to 9, moving lines, the changed hexagram and the order to read it all in.
Old yin, old yang and the hexagram they change into; Zhu Xi's rules for one to six moving lines; a worked example — so you always know which sentence is speaking.
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The complete picture: your full BaZi report, a month-by-month 2027, and the whole Life Candlestick Chart.
Your Four Pillars in depth, from the Day Master to every Luck Pillar.
All twelve palaces and their stars, read together.
Unseal every year of your Life Candlestick Chart.
Your hexagram read line by line with the Najia method.
A short, focused reading of your Plum Blossom casting.
A full reading of two charts together, written from both Four Pillars and the six-dimension score.
No. iching.tools presents traditional Chinese systems as a way to reflect, not to predict.
Entirely in code, before any AI is involved. Solar terms come from astronomical tables to the minute; the year changes at the Start of Spring (立春); the day and hour pillars use true solar time from your birthplace's longitude. Zi Wei Dou Shu is computed with the open-source iztro library. The same input always gives the same chart, and the calculation notes are shown on every result.
It only writes the words. The AI receives the already-calculated chart as data and turns it into plain language. Every reading is checked against the chart: it may not add, remove or change a pillar, star or line, and it is kept calm — no fear, no health or lifespan claims. If a draft fails those checks it is rewritten or replaced by a template.
For BaZi, yes: you'll get three pillars (year, month and day) and the hour pillar is left out; some details, like strength, become less certain and we say so. Zi Wei Dou Shu needs the hour, so it asks for one. The zodiac calculator only needs the date.
Most calendars change animal on 1 January or at Chinese New Year. The Four Pillars tradition changes it at the Start of Spring (立春), around 4 February, to the minute. If you were born between late January and mid-February, your animal can differ — the calculator shows both.
