Software Developers
Logic, naming memory, and constraint propagation · the day job, gamified.
Most of writing software is constraint propagation · "this state implies that state, contradiction here means I am wrong about there." The same engine plays Sudoku, the same engine plays Mastermind, the same engine reads a stack trace.
Recommended games
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Circuit Breaker
Choose the logic gate · AND, OR or XOR · that turns the two inputs into the target output
Circuit BreakerOpen game Loading… -
Hash
The logic black-box · feed inputs, watch outputs, deduce the hidden function. From simple alphabet shifts to positional math rules
HashOpen game Loading… -
Mastermind Deduce
Crack the secret code from past guesses and peg feedback. Pure deductive reasoning, cheat-proof validation
Mastermind DeduceOpen game Loading… -
Game of Life
A serene cellular automaton · watch Conway's classic B3/S23 rule unfold. Load a pattern, toggle cells, then step or play generations
Game of Life -
Sudoku Force
Spot the cell where only one digit fits. Forced-move Sudoku micro-puzzles, validated by row, column, and box
Sudoku ForceOpen game Loading… -
Math Lab
A lab of timed number drills · arithmetic, trigonometry, prime spotting and fraction sizing, each on its own tab
Math LabOpen game Loading… -
Fast Typing
Real-time WPM and accuracy on a 200+ poem-excerpt library. Single words, sentences, or whole stanzas. Physical and mobile keyboards
Fast Typing
Why these games
Sudoku Forced Moves is the constraint-propagation gym · single-cell deductions, no guessing, no luck. Math keeps the back-of-envelope estimation sharp so capacity, latency, and cost are intuitive. Matrix Reasoning is the rule-induction drill · spotting the pattern in eight examples and predicting the ninth, which is most of what code review is.