Unlimited Dynamic Practice
Fresh, procedurally generated questions every run — spatial folding, sequence ladders, word synthesis, working memory span, and speed arithmetic. Calibrated against the AZTest normative database.
Playing with friends or a class? Open a Puzzle Room — everyone gets the same puzzles and a live leaderboard.
Prefer paper? Print a worksheet — pick the type, difficulty and length, with an answer sheet.
Spatial, Logic & Pattern Games
Procedural aptitude batteries: cube folding, 3D views and rotation, paper folding, sequence ladders, letter synthesis, and board partitions.
3D Cube Folding
Visualize 2D unfolded topological patterns and identify their 3D isometric folded cubes.
3D Views
A shape of cubes drawn from one corner, and four flat pictures. Only one shows it straight on from one of its six sides -- perhaps a side the drawing hides. Find the real view.
3D Views: Find the Wrong One
A shape of cubes drawn from one corner, and four flat pictures. Three show it straight on from one of its six sides -- the hidden ones too. Find the one that is no view of it at all.
3D Rotation
Shepard-Metzler mental rotation. Which of four drawings is the shape of cubes above, only turned? The others are its mirror image or a shape one cube different, turned as well.
Fold & Punch
A square sheet is folded one to three times, then a hole is punched through every layer. Unfold it in your head and pick the sheet with the right holes.
Gears
Mechanical reasoning: a train of gears, belts and axles driven by a blue gear. Which lettered gear turns clockwise, which turns fastest? Trace the motion link by link.
Number Series
Find the missing number. The sequences climb through arithmetic, geometric, alternating and recursive families as you keep getting them right.
Word Grid
Cover the whole grid with words. Trace each one up, down, left or right -- never diagonally -- and spell it forwards. Each grid you finish is bigger than the last.
Sliced Letters & Paper Cut
Synthesize cut, rotated, and shuffled glyph tiles to identify target letters and words.
Word Unscramble
Unscramble the word, then say which category it belongs to. The words lengthen as you keep getting them right.
Number Grid
Cut the whole grid into groups that each add up to the target. Trace a group up, down, left or right -- never diagonally. Each grid you finish is bigger than the last.
Working Memory & Cognitive Span
Staircase span challenges: digits, letters, animal sprites, and spatial matrix recall. Grows until you slip.
Numerical Sequence Memory
Digits flash up, then vanish. Type them back in order. Every clean round adds one more.
Alphabetical Sequence Memory
A run of letters, shown and then hidden. Reproduce it in order; it grows each time you do.
Picture Sequence Memory
A sequence of animals to hold in mind and tap back in order. Harder than digits, and the norms say so.
Grid Memory
Tiles light up across a grid. Mark them again once they go dark -- in any order, but all of them.
Mental Arithmetic Speed Ladders
Adaptive speed drills for addition, subtraction, multiplication, and division that calibrate to your reaction speed.
Mental Arithmetic: Addition
Add the two numbers. The questions climb a ladder ordered by how long each band actually takes to solve, settling where you are right 85% of the time.
Mental Arithmetic: Subtraction
Subtract the second number from the first. The questions climb a ladder ordered by how long each band actually takes to solve, settling where you are right 85% of the time.
Mental Arithmetic: Multiplication
Multiply the two numbers. The questions climb a ladder ordered by how long each band actually takes to solve, settling where you are right 85% of the time.
Mental Arithmetic: Division
Divide the first number by the second. The questions climb a ladder ordered by how long each band actually takes to solve, settling where you are right 85% of the time.
Mental Arithmetic: Mixed
All four operations, drawn at random. The questions climb a ladder ordered by how long each band actually takes to solve, settling where you are right 85% of the time.
How Infinite Practice Works
Every test run generates completely new random problem configurations, so you never encounter duplicate questions. Scores are evaluated using the AZTest difficulty formulas and calibrated against standardized age norms.