Refreshment Zone

Short breaks help your brain store what you just learned. Set a break timer, play something quick, then get back to studying refreshed.

5:00

Break timer

Pick a break length and press Start. You'll hear a chime when it's time to study again.

Games

♞
ChessPlay bots, puzzles, lessons, the opening trainer and dozens of variants.
🌐
Chess WorldsFour-player, infinite, 3D and hexagonal chess.
🔮
Memory GameArcanum — Memory of the Spheres. Train your focus.

Quick activities

Box breathing

Breathe in for 4 seconds, hold for 4, breathe out for 4, hold for 4. A few rounds calm your mind and help you focus.

Ready?
Rounds: 0

Reaction test

Click the box (or press Space) to start. When it turns green, click as fast as you can. Don't click while it's red!

Last—
Average (5)—
Best—
Click to startTest your reflexes

Tic-Tac-Toe

You are X. Get three in a row before the computer does. Players take turns going first.

Computer:
You0
Draws0
Computer0

2048

Use the arrow keys (or swipe) to slide the tiles. Matching numbers merge. Can you reach 2048?

Score0
Best0
Game over

Quick maths

Answer as many sums as you can in 60 seconds. Type the answer; correct answers move on automatically.

Level:
Score0
Time60
Best0
Ready?