Visual primer for first-time solvers
Hitori,
shown not told.
Live demonstrationStep 01 / 06
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Step01-Meet the board
This is Hitori.
The grid is already filled with numbers. Your job is to shade some cells so unshaded numbers do not repeat in any row or column.
Rules in play
- No duplicate unshaded numbers
- No adjacent black cells
- White cells stay connected
Shaded
Black cells remove duplicates from rows and columns.
O
White / circled
Cell is confirmed safe and should stay unshaded.
!!
Duplicate focus
Repeated numbers are candidate cells for shading.