The 8 Game Killer puzzle types.

Every level breaks the icon a new way, so a logo you know by heart can still take the full ten seconds. Here is what each type does, and how to beat it.

Pixel puzzle: an app icon reduced to big pixels
TYPE 1

Pixel puzzle

The icon drops to a handful of big pixels. You get the colors and almost nothing else.

How to beat it: read the colors first. Two or three main colors narrow it down to a few apps.

Zoomed puzzle: one corner of an app icon fills the frame
TYPE 2

Zoomed puzzle

A tiny piece of the icon fills the screen. Usually a corner, rarely the part you remember.

How to beat it: look for an edge or part of a letter. Corners often show the background color of the icon.

Color swap puzzle: an icon with its colors switched
TYPE 3

Color swap

The red, green and blue channels are switched around. The shape stays, the colors lie to you.

How to beat it: ignore the colors and trust the outline and the symbol in the middle.

Outline puzzle: only the edges of an icon are left
TYPE 4

Outline puzzle

Only the edges survive. No fill, no color, just the line where the icon used to be.

How to beat it: trace the inner shape. Logos with a clear symbol give themselves away fast.

Shadow puzzle: a black silhouette of an icon on white
TYPE 5

Shadow puzzle

A flat black silhouette on white. Round icons all start to look the same here.

How to beat it: check the outer shape. A shield, a speech bubble or a square with a notch is a strong clue.

Fragmented puzzle: an icon cut into shuffled tiles
TYPE 6

Fragmented puzzle

The icon is cut into pieces, shuffled and turned. You rebuild it in your head before the timer ends.

How to beat it: find one tile you recognize, then match the colors around it.

Blur puzzle: a heavily blurred app icon
TYPE 7

Blur puzzle

Heavy blur, so only the rough color blocks come through. Harder than it sounds.

How to beat it: squint. The brightest block is usually the logo itself.

Kaleidoscope puzzle: one quarter of an icon mirrored four ways
TYPE 8

Kaleidoscope

One quarter of the icon is mirrored into a pattern. Pretty, and nasty on short timers.

How to beat it: look at the top left quarter only. That is the real piece of the icon.

Every type gets harder as the levels go up.

On level 1 a pixel puzzle still has some detail. On level 5 it is a few blocks of color, and you have two seconds.