The short version
- Is it the same as throwing coins?
- The odds are identical, down to the last decimal. A line changes one time in four, exactly as three coins do.
- Does the computer choose my figure?
- No. Your own browser throws, and the six numbers are written down and hashed before anyone interprets anything.
- Can I keep the computer out of it?
- Yes. Throw your own coins and type the six numbers. Then the site is only a book that finds your page.
- Does the AI decide my answer?
- Never. The old text answers you. The AI arrives afterwards with optional commentary you are free to ignore.
How it was done for 3,000 years
The I Ching — the Chinese Book of Changes — answers you with a figure of six lines. Every line is thrown, one at a time, and the throw has never had one fixed tool. It has had several, and the tool changed on purpose.
c. 1000 BC
Yarrow stalks
Fifty dried stalks. One is set aside and never used. The other forty-nine are split by hand and counted off in fours, three times over — and that produces one line. Six lines, about twenty minutes, in silence.
c. 1000 AD
Three coins
A thousand years later, three coins replaced the stalks because they take three minutes instead of twenty. The odds are not identical to the stalks, and the tradition adopted them anyway. Everyone understood that what is handed down is the chance, not the plant.
Today
Six clicks — or your own coins
One click is one throw of three coins, with those exact odds. If you would rather not have a machine anywhere near the throw, throw on your table and type the six numbers in. Both roads end at the same book.
The stalks and the coins do not even give the same odds as each other. Both are traditional anyway.
That is the part worth sitting with. When the coins arrived, nobody argued that a thrown coin was less sacred than a dried plant. The question was only whether the chance was honest and the count was right. We are asking to be judged by exactly that standard — and below, we show our numbers so you can.
What six clicks actually do
One click is one throw of three coins. Heads counts as 3, tails as 2, so three coins always add up to 6, 7, 8, or 9. That single number is one line.
2 + 2 + 2
6
Old yin
changes · 1 in 8
2 + 2 + 3
7
Young yang
stays still · 3 in 8
3 + 3 + 2
8
Young yin
stays still · 3 in 8
3 + 3 + 3
9
Old yang
changes · 1 in 8
7 and 9 are solid lines, 6 and 8 are broken ones. The two outer numbers — 6 and 9 — are changing lines: they flip, and the flip gives you a second figure.
Six numbers, stacked bottom to top
Stack six of them and you have a hexagram — the six-line figure the book is organised around. There are 64, and each one has a name, a judgment, and six line texts waiting for it.
Always start at the bottom. Your first throw is the lowest line. A stack entered upside down is a different figure and a different answer.
As thrown — two changing lines
After the flip — the second figure
The red lines are the ones under pressure. Flip them and the first figure becomes a second one: where you are, and where this is heading. Only the red lines get a line text — that is the part of the book aimed at today.
“But a computer is involved”
It rolls and it writes down. It does not choose.
- The numbers come from
crypto.getRandomValuesin your own browser — the same randomness that protects a bank login. Not our server, not a stored list of “popular” hexagrams, and not the AI. - Nothing is weighted. Hexagram 1 and hexagram 47 are equally likely, and no reading is nudged toward a dramatic figure or a sales pitch.
- Your six numbers, the method and the time are written down and hashed before any interpretation is requested. Every reading shows you that receipt.
Cast receipt
Three coins, on this device
7 · 8 · 6 · 9 · 7 · 8 bottom line first
2026-09-12T15:08:53+00:00
73071d1af1e240d185d51230228c6bb614f4874952c8dec51b993f6c7bca4eae
And here is what that hash cannot do: prove our generator is honest. No hash on any website can prove that, and anyone claiming otherwise is selling something.
We think the object does not matter. If you disagree, you win.
Pick I already cast it on the homepage. Throw your own three coins, or count out the fifty stalks the slow way. Then type your six numbers, bottom line first — one at a time, or all at once:
7 8 6 9 7 8
Now no digital randomness touches your reading at all. The site does what a printed edition does: finds your figure among the 64, hands you the Chinese, the English and the changing-line texts, and keeps the record straight. The chance stayed on your table.
Your receipt then says entered by you instead of on this device, so months later you can still tell your own throws apart in your journal.
Who actually answers you
The book does. In four separate layers, and you can stop after any of them.
Every reading and every hexagram page is stacked in the same order, and each layer is labelled so you always know whose sentence you are reading:
The book, untouched
元亨利貞,无咎。
Classical Chinese
The book in English
Following indicates successful progress and no error through firm correctness.
James Legge, 1882 — public domain
Ours, and labelled
As you connect with steadier influences, the smaller attachments fall away on their own.
I Ching Today, on the changing line
Optional
You asked about the offer. This figure is about who you follow, not about the money in it.
Master Wu — you can ignore this entirely
The first two layers are the oracle. They are free, they need no account, and they are identical for everyone who throws that figure — that is the whole point of consulting a book instead of a person. The third is ours and says so. The fourth is the AI, and it is extra reading you can skip without losing the answer.
Can an AI read the I Ching?
No — and it is never asked to.
Master Wu, our reader, is called after your figure already exists. He has three rules and they are not negotiable:
- He never throws. The six numbers are fixed, recorded and hashed before he is called.
- He never divines. He is not asked what will happen to you. He is asked what these particular lines say, given the question you typed.
- He never replaces the book. The Chinese and the 1882 English sit above him on the page, so you can check him in one glance.
- 1Your handSix clicks, or three coins on your own table.
- 2The figureSix numbers, written down and hashed. Now fixed.
- 3The bookThe Chinese original, then Legge’s 1882 English.
- 4Master WuOptional commentary in today’s words.
- 5YouDecide. Nobody else can, and nobody here pretends to.
Master Wu enters at step 4. He cannot reach back to step 2.
So why have him at all? Because the text is old and tightly packed. “The wild goose gradually approaches the shore” is a real line, and most people need a minute with it. He is that minute — a footnote, not an oracle.
Where he can be wrong is your life, which he does not know. When his sentence and the line’s own words disagree, the line wins. Ignoring him costs you nothing: the reading above him is complete on its own.
Nothing changed in my reading. Is it broken?
No. That is an answer, and a common one — about one reading in six.
A still figure — no second hexagram
When no line changes, your figure is not turning into another one. That is the counsel: the situation is not going anywhere yet. The judgment of this single figure is the whole answer, and it usually speaks about holding position rather than acting.
It feels unfamiliar online because the shortcut method almost never produces it. With coins it happens 17.8% of the time, and the old commentaries treat it as perfectly ordinary.
Coins or yarrow: the numbers, in full
Nothing here is hidden, so you can compare us against any book or any other site:
| Line | What it is | Three coins | Yarrow stalks |
|---|---|---|---|
| 6 | broken line, changing | 1 in 8 · 12.5% | 1 in 16 · 6.3% |
| 7 | solid line, still | 3 in 8 · 37.5% | 5 in 16 · 31.3% |
| 8 | broken line, still | 3 in 8 · 37.5% | 7 in 16 · 43.8% |
| 9 | solid line, changing | 1 in 8 · 12.5% | 3 in 16 · 18.8% |
| Any given line changes | 25% | 25% | |
Coins take about three minutes, stalks about twenty. With stalks, changing yang (9) turns up three times as often as changing yin (6) — that lopsidedness is the tradition, not a defect. Either way a line changes one time in four, so a reading averages 1.5 changing lines. Our yarrow option maps four random bits onto the traditional 16-count, with no discarded samples.
The shortcut we refuse to use
There is an easier way to draw a line: flip one coin, heads yang, tails yin. It sounds harmless. It makes every line change half the time. Look at what that does to a reading:
three coins (used here) one coin flip per line
How many of the six lines change, per 100 readings.
Three lines changing on average instead of 1.5. A still figure once in 64 readings instead of once in six. Same 64 names on the box, different oracle inside.
We are not pointing at anyone else. This site drew lines that way for years. We fixed it, and now every reading carries a receipt naming the method that produced it.
Throw it yourself
No account, no permission, nothing to install. Two traditional methods, both accepted for centuries:
Three coins about 3 minutes
- Use three similar coins. Decide which face is heads (3) and which is tails (2).
- Hold the question, then throw all three together.
- Add the faces: three tails is 6, two tails is 7, two heads is 8, three heads is 9.
- Write that number as the bottom line. Repeat five more times, stacking upward.
- 6 and 9 are changing lines. 7 (young yang) and 8 (young yin) stay still.
Always start from the bottom line. Entering the stack upside down gives a different hexagram.
Yarrow stalks about 20 minutes
- Begin with fifty stalks. Set one aside and do not use it again. Work with the remaining forty-nine.
- For each line you divide the remaining stalks into two piles at random, take one stalk from the right-hand pile, then count each pile off by fours. The remainders (one to four) are set aside with the single stalk.
- Repeat that division twice more with whatever stalks are left. After three divisions the leftover count is 24, 28, 32, or 36.
- Divide that leftover by four. You get 6, 7, 8, or 9 for the line. Write it, then start again from forty-nine stalks for the next line.
- Do this six times, bottom line first.
Yarrow odds are not the same as coins. Old yang (9) appears more often than old yin (6), so yang lines change more often than yin. That is the traditional method, not a defect.
Then open the homepage, choose I already cast it, and type your six numbers in. The book text is free either way.
Where the words come from
- The Chinese is the received Zhou Yi text — the original book — shown above the English on every hexagram page and in every reading.
- The judgments are James Legge’s 1882 translation. Public domain, unedited by us.
- The changing-line notes are written here, in plain English, from those same lines. They are labelled as ours, never as the book.
- Wilhelm and Baynes is not here. That translation is still under copyright. A site handing it out for free either licensed it or took it.
The free reading gives you all three of the first layers. Master Wu’s longer personal interpretation is the paid part — and the reading does not depend on it.
Straight answers to the usual doubts
Is an online I Ching reading the same as throwing coins?
The mathematics is identical, the ritual is not. Every line on I Ching Today is drawn with the odds of three thrown coins: 6 old yin 1 in 8, 7 young yang 3 in 8, 8 young yin 3 in 8, 9 old yang 1 in 8. A line changes one time in four, a reading has 1.5 changing lines on average, and 17.8% of readings have no changing line at all. Sites that draw a line with a single coin flip instead make every line change half the time, which is a different oracle: three lines change on average and a still figure appears only once in 64 readings.
How was the I Ching cast originally?
With yarrow stalks. Fifty dried stalks, one set aside, the remaining forty-nine divided by hand and counted off in fours, three times per line, six times for a reading — around twenty minutes. About a thousand years later, three coins replaced the stalks because they are faster. The coin odds are not identical to the stalk odds, and the tradition accepted the swap anyway: what is handed down is the chance, not the object.
Does a computer choose my hexagram?
No. The numbers come from crypto.getRandomValues inside your own browser, not from the server, not from a stored list of popular hexagrams and not from the AI. The method, the six values and the time are written down and hashed before any interpretation is requested, and every reading shows that receipt. A hash cannot prove the generator is honest, which is why you can also throw your own coins and type the numbers in.
Can I cast the I Ching myself and use the site only for the text?
Yes. Choose "I already cast it" on the homepage, throw your own coins or count yarrow stalks, and type the six numbers bottom line first. No digital randomness touches the reading. The site then works like a printed edition: it finds your figure among the 64, gives you the classical Chinese, the 1882 Legge translation and the changing-line texts, and records that you entered the throw yourself.
Can an AI read the I Ching?
No, and it is never asked to. The AI reader, Master Wu, is called after the figure already exists. He never throws the coins, he is never asked what will happen to you, and he never replaces the book: the classical Chinese and James Legge's 1882 translation are shown above his commentary. His paragraph is optional extra reading you can ignore, and where his sentence and the line disagree, the line wins.
What does it mean when no line changes in an I Ching reading?
It means the situation is not moving yet, and the judgment of that single figure is the whole answer. It is not an error and not an empty reading. With three-coin odds it happens on 17.8% of readings, about one in six.
Should I use coins or yarrow stalks?
Both are traditional. Coins take about three minutes and are the default on this site. Yarrow stalks take about twenty minutes and give 6 one time in 16, 7 five times in 16, 8 seven times in 16 and 9 three times in 16, so changing yang appears three times as often as changing yin. The total chance that a line changes is 25% with either method.
Which I Ching translation does this site use?
The judgments are James Legge's 1882 translation, which is in the public domain, and the classical Chinese of the received Zhou Yi text is shown above the English. The changing-line notes are written by I Ching Today in plain English and marked as ours. Wilhelm and Baynes is not included because it is still under copyright.
Do I have to pay for an I Ching reading here?
No. Casting a hexagram, the classical Chinese, the Legge judgment and the changing-line texts are free and need no account. Master Wu's longer personal interpretation is the paid part, $15 a month after a seven-day free trial, and the reading itself does not depend on it.
