Can't Unsee
Play the can't unsee game on cantunsee.space: pick the most correct UI between two designs—a UX game for hierarchy, typography, and visual detail.
Tool powered by Pixactly on Pixactly.
Play Pixactly on pixactly.app: draw rectangles to match target width and height in pixels—five-round pixel accuracy game with personal bests.
Anchor common UI dimensions mentally
Practice recalling 8, 12, 16, 24, 32, 48, and 64 px increments—the grid sizes you spec in Figma and CSS before you draw each pixactly prompt.
Lock width first or height first—pick one
On each round, commit to nailing one dimension before adjusting the other. Switching both axes mid-drag adds error in this pixel accuracy game.
Use the canvas edges as reference
Compare your box to surrounding space and prior rounds. Relative scale helps when the target number is unfamiliar.
Slow down on the last 10 pixels
Fine adjustments at the end beat redrawing from scratch. Pixactly scores total pixels off—micro corrections matter on round five.
Review width vs height accuracy separately
Final results split horizontal and vertical error. If one axis lags, replay focusing only on that dimension in the next session.
Beat your personal best, not round one
Scores persist on pixactly.app. Treat early rounds as calibration; push personal best on a second run the same day.
Pixactly on pixactly.app measures width and height in pixels—not pixelated image guessing. These related games train adjacent layout and visual judgment skills on Uwarp.
| Game | Primary skill | Rounds | On Uwarp |
|---|---|---|---|
| Pixactly | Draw rectangles matching target width and height in px | 5 rounds | Play |
| Can't Unsee | Pick the more correct UI between two options | Scored quiz | Can't Unsee |
| Kern Type | Adjust letter spacing to match reference kerning | Per-word scoring | Kern Type |
| Hex Test | Guess #RRGGBB codes from color swatches | 10 levels | Hex Test |
Train UI detail spotting: Play /cant-unsee when spacing mistakes are visible but hard to name—complements raw pixel sizing drills.
Practice letter spacing: Use /curated/kern-type for typography kerning when horizontal rhythm needs refinement beyond box dimensions.
Learn hex from swatches: Open /hex-test when you want color code fluency instead of width and height pixels.
Browse design games: See /tools/games for Method of Action trainers, CSS games, and more layout practice .