Hitori
Shade cells so no number repeats in a row or column; shaded cells never touch, and the rest stay connected.
Rules
Shade cells so no number repeats in any row or column.
✓ No repeats ✗ 1 repeats Shaded cells never share a side (corners are fine).
✗ Side by side The white cells all stay connected.
✓ Connected ✗ Cut apart
Example: Odd One Out
Playing here: Tap a number to shade it, again for a dot (keep), again to clear.