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LESSON 3

Two people, two rows

Mae's Detective School · Detective Starter Kit (10 free cases)
This one looks clever on paper. It is just counting to two.

If two people can only stand in the same two rows, those two rows belong to them: one each. Nobody else can stand in those rows, so cross those squares out for everyone else.

The same works with columns, and with three people who share three rows.

How to spot it

  • Two people whose squares all sit in the same two rows (or columns).
  • A step where somebody else 'loses' squares without being placed.

Mae's tip

Write each person's possible rows next to their name. Two names with the same pair of rows: that's it.
Show me a real example from Case 03 (a small spoiler for that case)
ABCDEF123456CCCCUUUARRVVVVVVVR
  1. Look at columns A and B. Cristina and Usha can only stand in those two columns (Cristina: A3, A4, B5 or B6; Usha: A3, A4 or B6). Two people, two columns: one of them goes in each, so both columns are full. Nobody else can stand there: Albie loses A3; Rosa loses B1 or A2; Vernon loses 7 squares.

Practice

Cases in your book that use this trick:
0310
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