Trivia Quiz
Count the Cubes
How many cubes are there in the figure? Count every stacked block, hidden ones included, across 10 timed rounds with a fresh puzzle each time.
How to play
- Count all the cubes in the stack — including the ones you can’t see behind or underneath.
- 10 rounds, 20 seconds each. If time runs out, the round counts as wrong.
- Pick from four answers. The faster you’re right, the bigger your speed bonus — and every miss gets a layer-by-layer breakdown at the end.
Difficulty
3×3 to 4×4 base · up to 3 layers
How many cubes are in the figure — including the ones you can’t see? Each of the 10 questions draws a brand-new 3D stack, so no two games are alike. No cube floats and the top of every column stays visible, which means every hidden cube sits under one you can see. Choose Easy (3×3 base, up to 2 layers), Normal (3×3 to 4×4, up to 3 layers) or Hard (4×4, up to 4 layers, about 26 cubes on average) and pick the right total from four options within 20 seconds. Each correct answer is worth 100 points plus a speed bonus of up to 100. Afterwards, every miss is broken down with a top-down height grid and a layer-by-layer count. Free, no sign-up, with a shareable result card and challenge link.
Frequently Asked Questions
Q. How do you count hidden cubes in a stack?
A. Add up the height of every column. No cube floats, so each cube on an upper layer stands on a column that reaches the floor: count how many cubes high each square of the base is, then sum them. The review screen shows exactly this as a top-down grid of numbers.
Q. How many questions are there, and how hard do they get?
A. There are 10 questions with 20 seconds each. Easy uses a 3×3 base up to 2 layers high, Normal a 3×3 to 4×4 base up to 3 layers, and Hard a 4×4 base up to 4 layers. Every figure is generated on the spot, so replays never repeat.
Q. How is the score calculated?
A. A correct answer earns 100 points plus a speed bonus of up to 100, for a maximum of 2,000. A wrong answer or a timeout scores 0, and your grade depends on how many of the 10 you got right.
Q. How can I get better at counting cubes?
A. Read the figure column by column instead of counting the cubes you can see. Find each visible top, judge how many layers it sits above the floor and add those heights. Start on Easy, then use the layer breakdown of your misses to spot the columns you undercount.