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Rules -- Numeral Crossing

I do not know the origin of this type of puzzle. It's just been around for a long time. Nikoli calls it Nansuke.


1. Place a single digit in each white cell of the grid.
2. A horizontal or vertical group of two or more consecutive white cells, bounded on both sides by black cells or the edge of the grid, is called an entry. Every entry, reading from left to right or from top to bottom, must be one of the numbers listed below the grid. Every number listed below the grid must appear as exactly one entry.

1 comment

Anonymous said...

The earliest known puzzles of this genre date back to Depression-era Australiam, of all places. Newspapers couldn't afford to pay for much ink, so they omitted whatever they could -- such as regular crossword clues, which were replaced by the actual answers themselves.

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