Franken X-Wing

Franken X-Wing extends the basic X-Wing by allowing boxes as base or cover sets alongside rows and columns. This mixed use of houses creates fish patterns impossible with standard rows/columns alone.

Technique

1. Find a digit confined to 2 houses in the base set (mix of rows, columns, and boxes).
2. The cover set uses 2 houses from the remaining types.
3. Base and cover must use at least one box to be 'Franken' (otherwise it's a basic fish).
4. Eliminate the digit from cover set cells not in the base set.

Tips

• Franken fish mix boxes with lines in the base/cover sets.
• A basic fish uses only rows vs columns; Franken adds boxes to the mix.
• These are harder to spot but follow the same covering logic.