XYZ-Wing
Hard
Like an XY-Wing, but the pivot itself carries all three candidates XYZ while the two pincers hold XZ and YZ. The shared letter Z is ruled out of any cell that sees all three of these cells.
Hard
Like an XY-Wing, but the pivot itself carries all three candidates XYZ while the two pincers hold XZ and YZ. The shared letter Z is ruled out of any cell that sees all three of these cells.