Stack Counter
Build a stack from solid pieces, then see through it — nothing may float.
1 Choose a piece
↻ Rotate piece
⤺ Tip piece
2 Place it
tap the workspace to aim, tap again to stamp
▼ Stamp piece here
Undo last piece
Clear all
🎲 Build me a random stack to count
3 Inspect the stack
drag to rotate • tap to aim, tap again to stamp • arrow keys turn the piece
+
−
Exam view
Colour by piece
X-ray
Separate pieces
Focus layer
All
Reset view
Reveal the count
Count the pieces yourself first — then check.