Find a puzzle

The case notes

When every Kropki dot is shown

All markers named in this lesson are shown. Watch a worked example, then try the idea in a puzzle.

Put it into practice

White: neighbours · black: double

White Kropki dots join consecutive digits. Black dots join digits where one is double the other.

No dot rules out both

Here the rules say all possible dots are shown. So an unmarked edge is neither consecutive nor a doubling pair.

No white dot: not 1 or 3

This cell is two. The cell below has no white dot, so it cannot be one or three: both would be consecutive with two.

No black dot: not 4

Four would be double two. There is no black dot either, so four is out as well. Read exactly which dot colours the puzzle says are complete.

Read the transcript

White Kropki dots join consecutive digits. Black dots join digits where one is double the other. Here the rules say all possible dots are shown. So an unmarked edge is neither consecutive nor a doubling pair. This cell is two. The cell below has no white dot, so it cannot be one or three: both would be consecutive with two. Four would be double two. There is no black dot either, so four is out as well. Read exactly which dot colours the puzzle says are complete.

Keep following the clues