# Quizzman Zi Wei (Tử Vi Đồ) — About

- HTML: https://lab.quizzman.com/tool/about-tuvi
- Tool: https://lab.quizzman.com/tool/tuvi-reading
- Canonical language: Vietnamese (`lang=vi`)

## Definition

**Quizzman Tử Vi** is an expert system for Purple Star Astrology (Tử vi đồ) at lab.quizzman.com. It places 14 major + 86+ minor stars using Can Chi / lunar input from the **Quizzman Calendar** core (UTC+7), then interprets with **four schools** in parallel (Bắc Tông, Nam Tông, Thiên Lương, Đài Loan), including Si Hua (Tứ Hóa) annual transformations and a V3 **10-layer interpreter**.

## Functions

1. Full chart (an sao) for life palaces
2. Four classical interpretation schools + side-by-side compare
3. Interactive 10-year Luck Cycles with yearly ratings
4. Annual Si Hua (Tứ Hóa Lưu Niên)
5. Thai Tue / yearly interaction groups (Thiên Lương)
6. REST API (`/laso`, `/schools/compare`, `/schools/luunien`)

## Algorithms (core)

- **Tử Vi placement:** by Bureau number (Cục Thủy2–Hỏa6)
- **Thiên Phủ:** always opposite Tử Vi
- **Life palace:** `(month + hour − 1) mod 12` from Dần; Body palace classic formula
- **Five-Elements Bureau:** from Year stem + Life palace
- **Minor stars:** month/hour/year tables (Tả Phù, Văn Xương, Lộc Tồn, Hỏa/Linh, Thái Tuế ring, …)
- **Si Hua:** Trung Châu 10-stem table + Nam-phái variants; annual overlay
- **Luck direction:** school-dependent (Bắc from adjacent palaces; Nam/Đài Loan from Life; etc.)

## Accuracy meaning

Internal regression **156/156 + V3 pipeline PASSED** (Feb 2026): major stars, palaces, bureau, minor stars, Si Hua, luck cycles, combinations/clashes, timezone/lunar via Calendar (108/108). Does **not** claim absolute prophecy — rules are transparent.

## FAQ

1. **How accurate?** 156/156 chart+pipeline tests; calendar UTC+7 shared with BaZi / I-Ching.
2. **Core an-sao algorithm?** Cục-based Tử Vi, opposite Thiên Phủ, month–hour Life palace, stem Si Hua tables, school-specific luck direction.
3. **Fortune telling?** No absolute prophecy claim; calculation + rule engines only.

## Related wiki

- https://wiki.quizzman.com/wiki/tu-vi-do-he-thong-chuyen-gia-10-layer-4-truong-phai
- https://wiki.quizzman.com/wiki/thuat-toan-an-sao-tu-vi-108-sao-lap-trinh
- https://wiki.quizzman.com/wiki/4-truong-phai-tu-vi-bac-tong-nam-tong-thien-luong-dai-loan
- https://wiki.quizzman.com/wiki/can-chi-he-thong-dem-60-chu-ky-3000-nam-lich-su
- https://wiki.quizzman.com/wiki/quizzman-calendar-engine
- https://wiki.quizzman.com/wiki/mui-gio-lich-su-viet-nam-tai-sao-lich-am-vn-va-trung-quoc-khac-nhau
- https://wiki.quizzman.com/wiki/quizzman-iching-lich-phap-thuat-toan-do-chinh-xac
- https://wiki.quizzman.com/wiki/gioi-thieu-cong-cu-quizzman-kinh-dich-lich-phap-tu-vi-bat-tu-jck-font

## Related Lab pages

- Calendar: https://lab.quizzman.com/tool/about-calendar
- BaZi: https://lab.quizzman.com/tool/about-bazi
- I-Ching: https://lab.quizzman.com/tool/about-iching
- Lab llms.txt: https://lab.quizzman.com/llms.txt