A table that fits in one row
When every free spot of a table lies in one row, that table’s cup will be in that row. So the rest of the row can be crossed out. The same works for a column, and the other way around.
Before
After
How to spot it
- Look at long, thin tables first: a table that lies flat in one row or stands up in one column.
- Also look at a table that has been cut down by crosses. Often the last few free spots end up in one line.
- Turn it around: if every free spot of a row belongs to one table, the rest of that table can be crossed out.
Why it works
The table needs a cup, and all its free spots are in that row, so the cup lands in that row. A row holds only one cup. Every other spot in the row would be a second cup in the same row, so none of them can have one.
Try it on a real board
Play a free board in your browser, no account needed. When you are stuck, the hint shows where to look, then explains the step.
The Brewdoku app has 300 levels that bring in these steps one at a time, from small boards to 10x10, and a hint that shows where to look, then why, and only then makes the move.