> For the complete documentation index, see [llms.txt](https://sudoku.kazusa.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sudoku.kazusa.tech/direct-technique.md).

# 直观技巧

- [排除](https://sudoku.kazusa.tech/direct-technique/01-crosshatching.md): Crosshatching
- [唯一余数](https://sudoku.kazusa.tech/direct-technique/02-naked-single.md): Naked Single
- [做题策略・基础概念](https://sudoku.kazusa.tech/direct-technique/03-strategying-phase-1.md): Strategying Phase Ⅰ
- [数字锁定策略](https://sudoku.kazusa.tech/direct-technique/03-strategying-phase-1/01-digit-locking-strategy.md): Digit-Locking Strategy
- [剩余数的概念](https://sudoku.kazusa.tech/direct-technique/03-strategying-phase-1/02-concept-of-lasting.md): Concept of Lasting
- [错题](https://sudoku.kazusa.tech/direct-technique/03-strategying-phase-1/03-mistakes.md): Mistakes