Yoni koota — and the 7.3% who score full marks

What this tool computes

Every one of the twenty-seven nakshatras carries an animal symbol — horse, elephant, serpent, dog, cow, tiger and so on, fourteen animals in all. Yoni koota scores the pair of animals rather than the pair of stars, and it is worth 4 of the thirty-six points. Give the tool two birth stars and it looks up both animals, then returns the points under the standard matrix and under Raman’s alongside each other. No birth time is needed, and no planets are consulted. Two star names settle it.

How often full marks actually occur

Across all 11,664 possible pairings of nakshatra and pada, only 7.3% score full marks on yoni. Full marks require the same animal on both sides, so they are rare by construction, not by misfortune. A flat zero is nearly as rare: 7.1% of pairings score nothing, and those are almost entirely the seven traditional sworn-enemy pairs. Everything in between is the ordinary case. A partial yoni score is what the table is built to produce for most people.

Nearly every couple scores partial on yoni, and a partial score is not an adverse finding.

What the result does and does not mean

The number is a lookup in a printed table, and that is all it is. It says which cell your two animals fall in under the matrix named beside it. It is not a statement about either person’s temperament, and it does not tell you what will happen to a marriage — we do not make that claim and no honest calculator can. Two matrices are in circulation and they disagree on twenty-six of the ninety-one animal pairs, so the second number here may not match the one on your report. Both are traditional. Which was used is a fact about the table, and the tool prints it rather than leaving you to infer it.

My report gave a different yoni score. Which one is correct?

Probably both, in the sense that each is a correct reading of its own table. The South Indian and North Indian printed lineages agree on full marks and on the sworn enemies and part company in the middle. If your report did not name its matrix, that is the first thing to ask for.

We scored zero on yoni. Does that end the discussion?

It ends nothing on its own. Yoni is worth 4 points of thirty-six, and the traditions that use Ashtakoota score it as a graded quantity to be weighed against the other seven kootas, not as a veto. What a particular astrologer concludes from a zero is a separate question, and worth putting to them directly.

Does the male-female classification of the animals change the number?

Under most traditions, no. Three positions are documented: ignore it, describe the combination in words without changing the points, or apply a numeric penalty. Only one regional reading applies the penalty, and its source reports it second-hand. The tool names it when it is applied rather than folding it in silently.