Choose your 90‑second challenge
Quick browser games for focus resets, memory warm-ups, visual challenges, and personal bests.
5
playable games
90s
rounds
Guest mode
play instantly
Today’s pick
Schulte Table
Find numbers in ascending order as fast as you can. Great for a quick focus reset and visual scanning challenge.
90s round
Guest-friendly
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Playable games
Choose one game and start a short round when you are ready.
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Weekly challenge progress
Your weekly progress
Pick a game and try to beat your best score from this week.
Recommended this week
Schulte Table
Challenge
No run today. Start a short challenge and put a score on the board for this week.
Schulte Table
No run todayToday: No run yet / Week best: 1,400 pts
Memory Cards
In progressToday: 1,540 pts / Week best: 1,800 pts
Color Shades
No run todayToday: No run yet / Week best: 1,305 pts
Matrix Difference
In progressToday: 1,200 pts / Week best: 1,740 pts
Mirror Mosaic
No run todayToday: No run yet / Week best: 2,050 pts
Weekly progress is saved on this device. Sign in later to keep official progress across devices.
Coming soon
New game types are planned gradually. Current games are fully playable in guest and account modes.
Calculus
Short number challenges with arithmetic practice.
Soon
Duplicates
Spot duplicate shapes and repeated details.
Soon
Equation Ninja
Solve quick equations under light pressure.
Soon