Hashi Bridges
Connect numbered islands with single or double bridges.
CHOOSE A TASK
Learning games and puzzles
Original untimed puzzles and short practice sets with explanations. Choose a task, check your answer and try another approach.
40 activities · all free
Slitherlink
Draw one closed loop around a small clue grid.
Nurikabe
Separate numbered islands with a connected sea.
Hitori
Shade repeated numbers while keeping the remaining cells connected.
Shikaku
Partition a grid into rectangles matching its numbered clues.
Minesweeper Logic Lab
Use visible neighbouring-mine counts on compact practice boards.
Mini Crossword
Solve original three-by-three word-square crosswords.
Word Search Builder Game
Build and solve a word search using your own short word list.
Spelling in Context
Choose the correctly spelled word that fits a sentence.
Algebra Tiles
Build signed x and unit tiles to match an expression.
Tangram Studio
Arrange seven geometric pieces in a keyboard-friendly shape studio.
Pentomino Packing
Pack three different five-square pieces into a small rectangle.
Origami Fold Predictor
Predict where a marked point moves under a simple fold.
Cube Net Explorer
Use an unfolded cube net to identify opposite faces.
Perspective Match
Match a small stack model to its front or side profile.
Prospective Memory Errands
Remember a simple intention while reading a short event sequence.
Story Recall
Read an original short story and recall its details.
Face and Name Associations
Match fictional names to original illustrated faces.
Sound Pattern Recall
Repeat a short sequence of four distinct tones.
Rhythm Reproduction
Tap back a short demonstrated rhythm.
Route Recall
Remember a short route on a five-by-five grid.
Instruction Sequencing
Put a short task’s steps into a valid order.
Nonogram
Fill a small picture grid using the numbered runs beside each row and column.
Kakuro
Solve a compact cross-sum puzzle with digits 1–9.
Futoshiki
Complete a four-by-four number grid while respecting inequalities.
Cryptogram
Decode an original short sentence using a one-to-one letter substitution.
Inference Detective
Choose the conclusion best supported by a short original passage.
Main Idea Finder
Find the central point of an original short paragraph.
Fact and Opinion
Distinguish checkable factual claims from evaluations and mixed statements.
Evidence Match
Choose evidence that directly addresses a particular claim.
Argument Fallacy Lab
Inspect short arguments and identify their specific reasoning problem.
Punctuation Repair
Choose clear punctuation for short standard-English sentences.
Sentence Ordering
Put instructions and short narratives into a coherent order.
Chart Detective
Read small data tables and compare totals, differences and changes.
Statistics Intuition
Work with medians, means and proportions using small transparent datasets.
Ratio Recipes
Scale quantities while preserving a recipe ratio.
Unit Conversion Lab
Practise metric conversions with visible units and a worked explanation.
Equation Repair
Find the value that makes an equation true and check it by substitution.
Coordinate Transformations
Reflect and translate points on a coordinate plane.
N-Back Lab
Compare each letter with the letter one or two steps earlier in a self-paced sequence.
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