What is the sequence of hints for each solving technique?

A. This is the sequence.

  • Naked Single
    1. Naked Single: there is a naked single (no cells highlighted)
    2. Naked Single: this cell can only be one number (with cell highlighted)
    3. Naked Single: this cell can only be [number] (with cell highlighted)
  • Hidden Single
    1. Hidden Single: there is a hidden single (no cells highlighted)
    2. Hidden Single: there is a hidden single in this [unit] (with unit highlighted)
    3. Hidden Single: there is a hidden single for [number] in this [unit] (with unit highlighted)
    4. Hidden Single: this is the only cell in the [unit] that can contain [number] (with unit and cell highlighted)
  • Block / Column / Row Interaction
    1. Block/column/row interaction: there is a block/column/row interaction (no cells highlighted)
    2. Block/column/row interaction: there is a block/column/row interaction for block [number] (with block highlighted)
    3. Block/column/row interaction: block [number] and [unit] [number] have an interaction (with block and unit highlighted)
    4. Block/column/row interaction: block [number]: [unit] [number] must contain [number] (with block and unit highlighted)
  • Block / Block Interaction
    1. Block/block interaction: there is a block/block interaction (no cells highlighted)
    2. Block/block interaction: block [number] has an interaction with another block (with block highlighted)
    3. Block/block interaction: blocks [number] and [number] have an interaction (with both blocks highlighted)
    4. Block/block interaction: blocks [number] and [number] have an interaction in [unit] [number] and [number] (with both blocks, and their effect highlighted)
    5. Block/block interaction: blocks [number] and [number] must contain [number] in [unit] [number] and [number] (with both blocks, and their effect highlighted)
  • Naked Subset
    1. Naked Subset: There is a naked [setSize] (no cells highlighted)
    2. Naked Subset: [unit] [number] has a naked [setSize] (with unit highlighted)
    3. Naked Subset: [unit] [number] has a naked [setSize] [numberList] (with unit highlighted)
  • Hidden Subset
    1. Hidden Subset: There is a hidden [setSize] (no cells highlighted)
    2. Hidden Subset: [unit] [number] has a hidden [setSize] (with unit highlighted)
    3. Hidden Subset: [unit] [number] has a hidden [setSize] [numberList] (with unit highlighted)
  • X-Wing
    1. X-Wing: there's an X-wing (no cells highlighted)
    2. X-Wing: there's an X-wing for [number] (no cells highlighted)
    3. X-Wing: there's an X-wing for [number] (with cells highlighted)
  • XY-Wing
    1. XY-Wing: there's an XY-wing (no cells highlighted)
    2. XY-Wing: there's an XY-wing (with cells highlighted)
    3. XY-Wing: there's an XY-wing, [number] can be eliminated (with cells highlighted)
  • XYZ-Wing
    1. XYZ-Wing: there's an XYZ-wing (no cells highlighted)
    2. XYZ-Wing: there's an XYZ-wing (with cells highlighted)
    3. XYZ-Wing: there's an XYZ-wing, [number] can be eliminated (with cells highlighted)
  • Swordfish
    1. Swordfish: there's a swordfish (no cells highlighted)
    2. Swordfish: there's a swordfish for [number] (no cells highlighted)
    3. Swordfish: there's a swordfish for [number] (with cells highlighted)
  • Colouring
    1. Colouring: an elimination can be made using colouring (no cells highlighted)
    2. Colouring: an elimination can be made using colouring for [number] (no cells highlighted)
    3. Colouring: contradiction when colouring [number] OR Colouring: double exclusion when colouring [number] OR Colouring: full chain contradiction when colouring [number] (with cells highlighted)
  • XY-Chain
    1. XY-Chain: an elimination can be made using an XY-chain (no cells highlighted)
    2. XY-Chain: an elimination can be made from [cell] (cell(s) highlighted)
    3. XY-Chain: an elimination can be made from [cell] using the chain [chain] (with cell(s) and chain highlighted)
    4. XY-Chain: [number] can be eliminated from [cell] using the chain [chain] (with cell(s) and chain highlighted)
  • Forcing Chain
    1. Forcing Chain: there's a forcing chain (no cells highlighted)
    2. Forcing Chain: there's a forcing chain from [cell] (no cells highlighted)
    3. Forcing Chain: [cell] can be forced from either candidate of [cell] (with cells highlighted)
    4. Forcing Chain: [cell] can be forced to [number] from either candidate of [cell] (with cells highlighted)

Where:

  • [cell] is a cell,
  • [unit] is "block", "column" or "row",
  • [setSize] is "pair", "triplet" or "quad",
  • [numberList] is the numbers that make up the set.
  • [chain] is the chain of cells.