Puzzle #23: Quarter-Turn L

Medium · Rotation · target time about 17 seconds

Which option completes the pattern?

How to solve it (answer: C)

The rule

In each row, the L turns 90° clockwise at each step.

Look at the top row and name what changes from panel to panel.
The middle row follows the same step.
Apply the same step to the bottom row: next comes a solid L pointing up and right.

Tip: Follow one tip of the shape and note how far it turns or moves between panels.

The wrong options keep most of the pattern and change the angle or the fill, so each one looks finished at a glance. Check both before you choose.

Option A: It turns the wrong way. Each step turns 90° clockwise.
Option B: It turns 135° clockwise instead of 90° clockwise.
Option D: Every L in the grid is solid, but this one is hollow.
Option E: It turns the wrong way. Each step turns 90° clockwise. Every L in the grid is solid, but this one is hollow.
Option F: It turns 135° clockwise instead of 90° clockwise. Every L in the grid is solid, but this one is hollow.

A shape turns or moves by a fixed angle. Read the guide to rotation puzzles for the method and the common traps.

The Cogniva test has 20 puzzles across four pattern types and gives you a free score band in about 7 minutes.

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