What Is Six Ren Shift (六壬移換) in BaZi?
Learn how Six Ren Shift reassigns an interpretive route after specific stem-branch clashes, its named examples, exception and strict chart-data boundary.
Overview
Six Ren Shift is the standard English name for 六壬移換, a classical interpretive method in which certain clashes are said to “move” the stems onto the opposing branches for a second reading. The passage gives named day-hour examples such as Jia-Zi with Geng-Wu and Ren-Zi with Bing-Wu, plus larger four-pillar cases, and it explicitly excludes Ding-You with Gui-Mao. This is not a standard pillar-calculation rule: the birth chart remains exactly as calculated, while any shifted arrangement is only a labeled analytical hypothesis. OpenFate detects actual clashes but does not generate or score a Six Ren Shift chart.
At a glance
- Trigger family
- Named stem-branch clashes, not every clash
- Example 1
- Jia-Zi day · Geng-Wu hour
- Example 2
- Ren-Zi day · Bing-Wu hour
- Named exception
- Ding-You with Gui-Mao does not shift
- Data rule
- Shifted positions never replace natal pillars
- Product boundary
- No OpenFate Six Ren Shift detector
Six Ren Shift is a historical second reading of named clashes
The source starts from charts containing Lu, Blade, Officer or Resource that do not settle on the stem itself. Under certain stem and branch clashes, it reads the opposing stems as if they had changed seats for the purpose of evaluating those relationships.
Jia-Zi day with Geng-Wu hour is read through Geng-Zi and Jia-Wu; Ren-Zi with Bing-Wu is read through Bing-Zi and Ren-Wu. These examples establish a narrow method, not a rule that every clash permutes every pillar.
- Require a named or source-supported shift route.
- Retain both the original evidence and the hypothetical reading.
The exception proves that clash alone is insufficient
The passage says Ding-You meeting Gui-Mao does not shift because both sides settle into their Noble relations. Its later cases also evaluate season, control and what each moved stem would receive.
A safe interpretation therefore records the exact clash, proposed reassignment, supporting Ten Gods, exception checks and the ordinary chart reading side by side.
- Check the explicit Ding-You and Gui-Mao exception.
- Do not infer movement from a branch clash alone.
OpenFate never rewrites the calculated birth chart
The engine can expose the original pillars, hidden stems, Ten Gods and clashes. Those deterministic facts remain the only natal chart data.
There is no Six Ren Shift detector or alternate-chart score. If the method is discussed, it must be labeled as a classical interpretive overlay and must not alter reports, saved charts or downstream calculations.
- Original pillars remain authoritative.
- A hypothetical overlay must be visibly separate and reversible.
A shifted reading cannot determine fortune or harm
The classical cases attach rank, fortune and misfortune to their reconstructed routes. Those retrospective examples are not validated predictions.
Do not use Six Ren Shift to guarantee success or to predict loss, illness, death, crime or disaster. Important choices need direct evidence and appropriate professional advice.
- No success or status guarantee.
- No health, death, crime or disaster prediction.
Sources and editorial basis
- 《三命通會》 (Sanming Tonghui)《古今圖書集成》藝術典第608卷「六壬移換」：指定干支沖剋換位、甲子庚午與壬子丙午等路線、丁酉癸卯例外及多組四柱案例A historical compilation covering stems and branches, Ten Gods, Nayin, Shen Sha, and multiple classical pattern systems.
- OpenFate Editorial Methodology原盤確定資料與移換解釋假設嚴格分層、只接受有來源路線、不得重寫存盤報告或計算，未實作則不判並排除禍福官位破財疾病死亡犯罪災難預測OpenFate separates deterministic chart calculation, traditional interpretation, and modern editorial explanation.