Shape Cubes Test

Each question shows several drawings of the same cube from different sides. Each face has one of six shapes: circle, triangle, square, rectangle, cross and half-circle. The shapes turn with the cube, and a grey face is covered, not blank. On the right, one face shows a question mark: click the shape that belongs there.

Sixty questions in 20 minutes, starting very easy and getting much harder. A wrong answer costs nothing, so answer every question, guessing if you have to. Your score is the number right.

These are new items, generated and checked by computer so that each has exactly one answer; there are no data on them yet, and your answers help calibrate them.