The ultimate deductive reasoning test. Our AI analyzes the 4x4 and 5x5 grids, cross-checks the rows and columns, and bridges the gap instantly.
| Test Name | GapChallenge (Gamified Deductive Reasoning) |
| Provider | Aon (formerly Cut-e) |
| Grid Size | 4x4 or 5x5 Grids |
| Core Rule | No shape can be repeated in any row or column. |
Unlike "Scales" tests which ask you to find a pattern (inductive), GapChallenge gives you the rules upfront (deductive). You must apply these rules perfectly to find the only possible solution.
To solve the grid, you must check the row and the column simultaneously. "If a Triangle is already in Row 1, the missing shape in Row 1 cannot be a Triangle." Our AI performs this check instantly.
Your goal isn't to fill the whole grid—it's to find the specific shape in the blue question mark square. ReasonEra focuses solely on this target, saving you valuable time.
Look at the row and column of the target square. Eliminate any shapes that already appear there.
If a row has 4 out of 5 shapes filled, the empty spot MUST be the 5th shape. This is the fastest way to solve.
Don't try to fill empty squares that don't help you find the target. Focus only on the question mark.
The test is timed. While you can solve it logically, AI solves it 10x faster, ensuring you complete all levels.
Don't let a simple logic puzzle slow you down.
Get the answer in < 2 seconds.
The GapChallenge is a gamified deductive reasoning test by Aon (Cut-e). You are presented with a grid where some squares have shapes and others are blank. You must deduce which shape belongs in the question mark square based on the rule that no shape is repeated in any row or column.
It is very similar to Sudoku logic. You must use cross-checking (comparing rows vs columns) to find the missing element. However, GapChallenge uses shapes (circles, crosses, triangles) instead of numbers.
The test is timed, and the difficulty often increases. You need to solve as many grids as possible within the time limit (usually around 6 minutes). Using ReasonEra allows you to solve each grid in under 2 seconds, maximizing your score.
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