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.

What People Say

We enjoy the program and the ease it allows for us not to have to enter all the possibility numbers manually. GOOD JOB
Roger Galvin, Connecticut
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