Tower Stack
Drop each block at the right moment; the overhang is cut away forever.
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About this test
Slice-based stacking is one of the purest mobile game ideas there is: a block sweeps back and forth above the tower, you drop it, and any part not resting on the floor below is deleted. No lives, no bonus points, no second chances — just a base that can only ever get narrower.
That's what makes it interesting to analyse. Mistakes never cancel out: a three-pixel offset on the second floor is still there on the fifteenth, it simply adds to the ones after it. An average player misses slightly in both directions and loses width on both sides; a good player, having missed on one side, deliberately misses on the same side next time so the material is only lost once.
The other skill is rhythmic. Because the block speeds up with every floor, the drop moment isn't judged by looking at position but by counting the travel time. Players who build high watch the edges of the screen, not the block.
How it works
We count the floors placed before there is too little material left to land on. Block speed rises by roughly three percent per floor. The 0-100 score starts at zero and caps at twenty floors, which puts the typical player around six to eight.
This test is provided for entertainment purposes only. It is not a diagnosis or professional advice.