Deductive logic · Original practice
Aon gapChallenge practice
One shape per row. One shape per column. Work out what must go in the question-mark cell, then build speed across increasingly demanding grids.
Six-minute timed practice
Practice the pace under one continuous clock. Answer each target, keep moving and review your reasoning when the timer ends.
Practice with the clockSix-puzzle learning practice
Take your time. Choose an answer, follow the deductions cell by cell and understand the explanation before moving on.
Learn the methodTry an original shape puzzle
This example is always free and does not use a practice attempt. Follow the row and column rules, then choose your answer to see the deduction.
Each shape appears once in every row and once in every column. Which shape belongs at the question mark?
| Column | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Row 1 | ||||
| Row 2 | ||||
| Row 3 | ||||
| Row 4 | ? | |||
Question mark: row 4, column 4
Optional pencil marks. Select an empty cell to try a shape. Printed shapes are filled; your marks have outlines. These marks are not submitted. Reload clears your working.
Find what must be true
- 1
Start with the target
Check its row and column. Any shape already there cannot go in the question-mark cell.
- 2
Use another cell when needed
If several shapes still fit the target, look for a forced placement elsewhere. Carry that new information back to the target.
- 3
Keep deductions certain
A shape fitting one empty cell does not mean it must go there. Follow the constraints until only one target answer remains.
- 4
Review the chain
Our explanations identify cells by row and column. Compare each deduction with the original clues and find the step you missed.
gapChallenge and scales lst
Aon lists gapChallenge as a six-minute deductive-logical thinking assessment. Its preparation materials describe grids where every shape occurs once in each row and column, and only the question-mark cell needs an answer. Read Aon’s candidate instructions.
Aon describes gapChallenge as a gamified version of scales lst. It is separate from the four smartPredict games. Use the exact title and instructions in your assessment invitation. Read Aon’s product clarification.
Our puzzles, difficulty progression and explanations are original practice materials. They do not reproduce Aon’s calibrated adaptive selection, official scoring or exact visual interface.
A dedicated gapChallenge pass
Try the worked example for free. Full practice access is shown before you start. A gapChallenge pass covers both practice modes; the existing Aon smartPredict pass and other assessment passes have separate scope.
Saved reviews remain free, including original grids, your answers and the worked deductions. Results show practice accuracy and timing, without official scores or employer pass predictions.
Choose your practiceQuestions about gapChallenge practice
What is Aon gapChallenge?
gapChallenge is Aon’s deductive-logical thinking assessment. You use a rule—each shape appears once per row and once per column—to work out the shape hidden behind a question mark. Aon publishes a six-minute assessment, with four-by-four and five-by-five grids. This is independent preparation using original puzzles.
Is gapChallenge the same as scales lst?
Aon describes gapChallenge as a gamified version of its scales lst assessment, with changes to the candidate experience. The underlying task uses row and column constraints. Check the name and instructions in your invitation; our timed practice follows the published gapChallenge mechanics.
Do I have to complete the entire grid?
Only the question-mark cell is scored. Other empty cells can help you reason, but they may have more than one valid arrangement. Each original puzzle here has exactly one possible answer for its question-mark cell across every valid completion. There are no Sudoku box rules.
How does the timed practice work?
The timer runs for six minutes. Selecting an answer submits it and opens the next puzzle immediately; you cannot change a submitted answer. Solve as many puzzles as you can, then review your work. The clock continues in background tabs and after reloads. The six-puzzle learning mode has no timer and shows an explanation after each answer.
Is gapChallenge part of the four smartPredict games?
gapChallenge is a separate Aon product. The four smartPredict games are Grid, Switch, Digit and Motion Challenge. Our gapChallenge practice has its own pass, separate from the pass for those four games.
What is free, and which pass covers this practice?
The worked example is free without an account and does not consume a practice attempt. Your full practice access is shown before starting. A dedicated gapChallenge pass covers timed and learning practice for its selected period. Saved answers and explanations stay free after the pass ends.
Will my practice result predict my assessment score?
Results show how many original puzzles you answered correctly and your time on them. Our difficulty progression is a practice design, not Aon’s calibrated adaptive assessment. We do not provide official scores, percentiles, employer cutoffs or hiring predictions.
Independent preparation from Game Assessment Prep. Not affiliated with or endorsed by Aon or cut-e. All practice puzzles and explanations are original.