How the score is built
The engine returns five dimension scores and an overall weighted score. Nothing in it is random, and the factors behind each dimension are listed with the result:
- Day Master elements. Whether the two element types generate each other, match, or control each other.
- Day branches. Combination, clash, harm, punishment or no relationship — the strongest single signal.
- Useful elements. Whether one chart’s balancing elements appear in the other’s Day Master.
- Ten God distribution. How much output and wealth each chart carries.
- Wealth-route overlap. Whether the two charts favour the same working style.
Different schools use different compatibility methods — some compare the Year branches or the spouse palaces, some only compare Day Masters. This tool uses one documented method and shows its inputs, so its output can be read as one opinion rather than the answer.