3D Tetris
Probability
Level
2
Four 1-cm cubes are joined face-to-face in all possible ways to form geometric solids. Two such solids are considered the same if one can be obtained from the other by rotation. How many such solids are possible?
12
10
8
7
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
This is the number of one-sided tetracubes , which is 8: the usual five tetrominoes, plus a three-legged T-like piece, plus a 3D snake in two orientations ("normal" and flipped).