> 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/chain-theory.md).

# 链理论

- [双强链](https://sudoku.kazusa.tech/chain-theory/01-two-strong-link-chain.md): Two-Strong-Link Chain
- [同数链和异数链](https://sudoku.kazusa.tech/chain-theory/02-x-chain-and-multidigit-chain.md): X-Chain & Multidigit Chain
- [同数链和异数链的定义](https://sudoku.kazusa.tech/chain-theory/02-x-chain-and-multidigit-chain/01-definition-of-x-chain-and-multidigit-chain.md): Definition of X-Chain & Multidigit Chain
- [头尾异数链的删数规则](https://sudoku.kazusa.tech/chain-theory/02-x-chain-and-multidigit-chain/02-elimination-rule-on-nodes-with-different-digits.md): Elimination Rule on Nodes with Different Digits
- [不连续环的两种模式](https://sudoku.kazusa.tech/chain-theory/02-x-chain-and-multidigit-chain/03-two-types-of-discontinuous-nice-loop.md): Two Types of Discontinuous Nice Loop
- [有技巧名的异数链](https://sudoku.kazusa.tech/chain-theory/02-x-chain-and-multidigit-chain/04-named-multidigit-chain.md): Named Multidigit Chain
- [区块链](https://sudoku.kazusa.tech/chain-theory/03-grouped-chain.md): Grouped Chain
- [待定数组链（ALS 链）](https://sudoku.kazusa.tech/chain-theory/04-almost-locked-set-chain.md): Almost Locked Set Chain
- [链关系的第二定义](https://sudoku.kazusa.tech/chain-theory/04-almost-locked-set-chain/01-the-second-definition-of-inferences.md): The Second Definition of Inferences
- [有技巧名的待定数组结构](https://sudoku.kazusa.tech/chain-theory/04-almost-locked-set-chain/02-named-almost-locked-set.md): Named Almost Locked Set
- [在链里的待定数组](https://sudoku.kazusa.tech/chain-theory/04-almost-locked-set-chain/03-other-use-cases-of-almost-locked-set.md): Other Use Cases of Almost Locked Set
- [隐性待定数组链（AHS 链）](https://sudoku.kazusa.tech/chain-theory/05-almost-hidden-set-chain.md): Almost Hidden Set Chain
- [毛刺数组链](https://sudoku.kazusa.tech/chain-theory/06-burred-subset-chain.md): Burred Subset Chain
- [待定唯一矩形链（AUR 链）](https://sudoku.kazusa.tech/chain-theory/07-almost-unique-rectangle-chain.md): Almost Unique Rectangle Chain
- [待定可规避矩形链（AAR 链）](https://sudoku.kazusa.tech/chain-theory/08-almost-avoidable-rectangle-chain.md): Almost Avoidable Rectangle Chain
- [环](https://sudoku.kazusa.tech/chain-theory/09-loop.md): Loop
- [环的基本推理](https://sudoku.kazusa.tech/chain-theory/09-loop/01-reasoning-of-loop.md): Reasoning of Loop
- [数组、鱼和欠一数对的环视角](https://sudoku.kazusa.tech/chain-theory/09-loop/02-loop-view-of-subset-fish-and-almost-locked-candidates.md): Loop Views of Subset, Fish & Almost Locked Candidates
- [区块环](https://sudoku.kazusa.tech/chain-theory/09-loop/03-grouped-loop.md): Grouped Loop
- [强制链](https://sudoku.kazusa.tech/chain-theory/10-forcing-chains.md): Forcing Chains
- [强制链的基本推理](https://sudoku.kazusa.tech/chain-theory/10-forcing-chains/01-reasoning-of-forcing-chains.md): Reasoning of Forcing Chains
- [有技巧名的强制链](https://sudoku.kazusa.tech/chain-theory/10-forcing-chains/02-named-forcing-chains.md): Named Forcing Chains
- [动态链](https://sudoku.kazusa.tech/chain-theory/11-dynamic-chain.md): Dynamic Chain
- [动态链的基本推理](https://sudoku.kazusa.tech/chain-theory/11-dynamic-chain/01-reasoning-of-dynamic-chain.md): Reasoning of Dynamic Chain
- [动态强制链](https://sudoku.kazusa.tech/chain-theory/11-dynamic-chain/02-dynamic-forcing-chains.md): Dynamic Forcing Chains
- [动态环的删数分析](https://sudoku.kazusa.tech/chain-theory/11-dynamic-chain/03-elimination-analysis-on-dynamic-loop.md): Elimination Analysis on Dynamic Loop
- [动态区块环的删数分析](https://sudoku.kazusa.tech/chain-theory/11-dynamic-chain/04-elimination-analysis-on-dynamic-grouped-loop.md): Elimination Analysis on Dynamic Grouped Loop