Compare two calculated charts before interpretationCalculate both Zi Wei Dou Shu charts first, then compare Life and Spouse Palace branch relations, key-palace overlaps, cross-chart Four Transformations, traditional romance-star placements, decade context, and input reliability. AI explains the computed evidence without scoring or predicting marriage success.
OpenFate calculates two Zi Wei Dou Shu charts separately, then compares the relationship evidence produced by its rules: Life and Spouse Palace branch relations, overlaps among the Life, Body, Spouse, and Spirit Palaces (Fu De Gong), Four Transformations landing in the other chart, each person’s Spouse Palace stars, traditional romance-star placements, decade context, and input reliability. The result is a structured reading, not a compatibility score or marriage verdict.
Zi Wei Dou Shu compatibility is most useful when the two natal charts remain visible as separate sources. The reading should first identify what was calculated for each person, then explain the interactions between those facts.
This two-chart approach is sometimes described in English as Zi Wei Dou Shu synastry or Purple Star Astrology compatibility. OpenFate keeps the deterministic chart and comparison evidence first; traditional symbolism and AI explanation come afterward, so each relationship claim is easier to trace and challenge against real experience.
For each person, the birth date, birth time, place, time zone, and school setting must be resolved before a comparison is meaningful. OpenFate preserves the resulting Life Palace, Body Palace, twelve palaces, stars, Four Transformations, and timeline context rather than asking AI to recreate them.
The comparison then uses both frozen charts. It does not merge them into a third chart or flatten the pair into a single number.
The engine compares the branches of both Life Palaces, both Spouse Palaces, and the two cross Life-to-Spouse directions. Same branch, clash, six harmony, half-combination or arch, punishment, harm, and destruction are reported with their actual scope; a pair of branches is never mislabeled as a full three-branch combination.
It also checks same-branch overlaps among the Life, Body, Spouse, and Spirit Palaces. An overlap is a relationship clue, not proof that two people share the same needs or outcome.
Each person’s natal Four Transformations can land in a different palace of the other person’s chart. These directions are not interchangeable: Person A affecting Person B’s Spouse Palace is a different fact from Person B affecting Person A’s Life Palace.
Red Luan, Tian Xi, Tian Yao, and Xian Chi landings can add traditional attraction themes. They do not prove fidelity, a destined partner, or a permanent bond.
Current decade palaces show whether both people are moving through similar or different life themes. Annual Four Transformations can highlight years with more supportive, tense, or mixed relationship symbolism when the birth data is reliable.
These layers describe timing context only. They cannot identify an exact wedding, breakup, pregnancy, or financial event. If either recorded time is only an estimate, treat any year-by-year interpretation as provisional rather than precise.
Use a supportive pattern to ask what already works and how to protect it. Use a tension pattern to name an observable scene—such as conflict around privacy, spending, family involvement, or workload—and agree on a specific repair or boundary.
Zi Wei Dou Shu differs from Bazi compatibility: Bazi emphasizes Four Pillars, Five Elements, spouse indicators, stem-branch interaction, and luck cycles, while Zi Wei Dou Shu emphasizes palaces, stars, cross-chart Four Transformations, and palace-based timing. Neither system replaces the evidence of how two people actually behave together.
How two-chart evidence, birth-time reliability, timing, and AI explanation are handled.
Yes. One Spouse Palace describes a traditional partner and relationship theme within one natal chart. A two-chart comparison adds branch relations, key-palace overlaps, and each person’s Four Transformations landing in the other chart. It keeps both directions visible instead of treating one chart as the whole relationship.
This page requires a birth time for both people. Zi Wei Dou Shu palace and star placement depends strongly on the two-hour birth period. If either time is only an estimate, treat the whole chart and relationship evidence as provisional rather than relying on precise year-level context.
No. The Zi Wei Dou Shu engine does not produce a relationship percentage or overall compatibility score. It reports qualitative support, tension, mixed, or neutral evidence and separately describes how complete the inputs and rule alignment are.
No. Decade and annual Four Transformation evidence can provide a traditional timing backdrop, but it cannot prove that a marriage, breakup, or wedding will occur. Decisions should also use observed behavior, consent, finances, safety, and professional advice where appropriate.
AI explains the already calculated two-chart evidence in plain language. It does not recalculate either chart, invent missing birth information, read a partner’s private thoughts, or turn symbolic patterns into guaranteed events.