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233
General52 ratings
How LLMs Work
Be the model: split text into tokens, guess the next word, set the temperature.
873
Math4.819 ratings
Programming & CS
Guide a robot with blocks, then write real Python.
701
Math4.810 ratings
Coordinate Defense
Build at (−3, 4), read the camps, hold the keep.
15.7k
Math4.6176 ratings
Fruit Fractions
Show me 3/5 of the orange, then see why.
16.9k
Math4.6121 ratings
Linear Beam
Write the line, fire the laser, light every crystal.
20.5k
Math4.6335 ratings
Mental Math
Times tables practice that remembers what you know.
20.2k
Physics4.7241 ratings
Circuit Builder
Brighter, same, dimmer or off? Call it before the current flows.
18.3k
General4.8593 ratings
Courtroom
Argue real-feeling cases and win the court over.
13.2k
History4.667 ratings
Timeline
Drag world events into order and see what else was happening then.
7.4k
History4.561 ratings
Source Detective
Crack a redacted primary source: when, where, what and who.
27k
English4.6312 ratings
Irregular Verbs
Drive, drove, driven. Type the forms, race the clock, learn the patterns.
8k
Physics4.7170 ratings
Bridge Workshop
Build a bridge, drive a car across and see which piece works hardest.
9.8k
English4.6430 ratings
Word of the Day
One English word a day, its story, and three questions to make it stick.
44.7k
English4.6896 ratings
Escape Room
English reading practice: the only way out is understanding what you read.
6.2k
English4.7105 ratings
Sentence Builder
Grammar you can touch: build English sentences from word tiles.
55.1k
General4.61,610 ratings
Chess
Guided lessons, puzzles and matches against a coach at your level.
119k
General4.71,056 ratings
Geography
Name the country, pin its capital, pick its flag.
161k
Math4.3969 ratings
Guess the Equation
Solve the daily equation in six guesses.
129k
Biology4.62,138 ratings
Build a Cell
Build cells with the right organelles.
99.7k
Math4.6501 ratings
Pipes
Rotate the pipes and bring water to every tile in one connected network.
88k
Math4.61,164 ratings
Sudoku
Complete the daily 6×6 or 9×9 logic grid.
80.8k
Physics4.61,099 ratings
Logic Gates
Flip the switches so every lamp matches its goal in as few moves as you can.
76.2k
Math4.61,307 ratings
15 Puzzle
Slide the numbered tiles back into order, lowest to highest.
65.2k
Math4.2142 ratings
Marbleslides
Type an equation, hit launch, watch the marbles slide into the stars.
64.2k
Math4.3472 ratings
Nonogram
Reveal the daily picture with row and column clues.
59k
Math4.6155 ratings
Hashi
Connect every island into one network without crossing any bridges.
58.7k
Physics4.6764 ratings
Scribble Launch
Sketch ramps, seesaws and ropes, and roll the pod into its rocket.
55.3k
Math4.3310 ratings
Minesweeper
Classic Minesweeper with optional probability hints.
45.1k
Physics4.5569 ratings
Optics Puzzle
Drag the mirrors so the laser reflects off them and reaches the glowing target.