Enter two birthdays. The calculator reads both full Four Pillars charts and applies the classical pairing rules: Day Master resonance, spouse palace harmony, zodiac layer and five-element complementarity.
八 字 合 盤
Please enter a valid birth date for both people.
Every remaining signal, the classical spouse-star layer, and practical advice on how the two charts balance (or strain) each other.
This reading applies classical correspondence rules from 渊海子平 and 三命通会 to two charts. It describes tendencies, not verdicts. Real relationships are built, not calculated.
The calculator compares two charts across four layers and returns a score between 20 and 95. Each layer is a classical rule rather than a preference, and the result shows which layer carried the score and which one pulled it down.
The stem over each person's birth day is their Day Master. When two Day Masters are the same element the pair shares a temperament. When one generates the other, the reading is favourable. When one controls the other, the texts describe friction to be managed rather than an impossibility.
The branch under the Day Master is the spouse palace. Between two charts, its combinations and clashes matter more than the zodiac animals, because the animals sit in the year position and describe a birth cohort rather than a person. 六合 and 三合 reinforce a pair. 沖, 刑 and 害 pull at it.
A chart's spouse star is the Ten God that describes the partner it draws in. For a man that is the wealth star, for a woman the officer star. Where the star falls, and whether it is rooted or left exposed, shapes how a relationship tends to be experienced. The engine reads these from the same tables that power the BaZi calculator.
Two charts short of different elements can cover for each other. Two charts short of the same element tend to share the same blind spot. This layer looks at what each chart supplies to the other.
A low score is not a verdict on a relationship, and a high score is not a promise. The classical texts describe a chart as weather rather than conduct: it says what conditions two people are likely to work with, not what they will do about them. Where a birth hour is unknown, the reading uses three pillars instead of four and states that in the result.
The free result gives the score, both Day Masters, the spouse palace reading and the first two signals. The full report works through all four layers, identifies which one is carrying the relationship and which one is costing it, and adds the timing layer for the years ahead.