Witness Weather
Three witnesses. One forecast that fits the facts.
Puzzle · Intermediate · Keyboard and touchCHOOSE BY HOW YOU PLAY
Logic & numbers.
Use deduction, arithmetic, patterns and explicit rules to work out a solution.
17 challenges, each with its own rules, Basic/Intermediate/Advanced label and Chill/Standard/Expert settings. Read the field guide before starting. These labels describe mechanics and are not age ratings.
Rune Sudoku
Sixteen cells. Four runes. One consistent world.
Puzzle · Intermediate · Keyboard and touch
Tiny Nonogram
Read the runs. Reveal the hidden picture.
Puzzle · Intermediate · Keyboard and touch
Bridges Count
Connect an archipelago, one counted span at a time.
Puzzle · Intermediate · Keyboard and touch
Binary Balance
A small puzzle of zeros, ones and perfect balance.
Puzzle · Intermediate · Keyboard and touch
Sum Squares
Find the quiet order inside fifteen.
Puzzle · Intermediate · Keyboard and touch
Latin Lights
A Latin square with one more thing to promise.
Puzzle · Intermediate · Keyboard and touch
Codebreaker
A four-digit vault that speaks in careful clues.
Puzzle · Advanced · Keyboard and touch
Equation Trail
A number path where every step changes the answer.
Puzzle · Intermediate · Keyboard and touch
Number Spiral
Give every number a neighbour and a way home.
Puzzle · Intermediate · Keyboard and touch
Logic Locks
Four switches. Four rules. One satisfying click.
Puzzle · Basic · Keyboard and touch
Fleet Signals
Intersect row and column clues to find a hidden fleet.
Puzzle · Intermediate · Keyboard and touch
Factory Flow
Three machines, four orders and the order of operations.
Puzzle · Intermediate · Keyboard and touch
Cargo Sort
Eight conveyor crates, three bays and an exact capacity puzzle.
Puzzle · Intermediate · Keyboard and touch
Beacon Builder
The shortest useful connection keeps every beacon lit.
Puzzle · Advanced · Keyboard and touch
Probability Pantry
Choose the best fraction, rather than the biggest-looking bag.
Puzzle · Intermediate · Keyboard and touch
Quantum Choices
Build four entangled states with real two-qubit gates.
Puzzle · Advanced · Keyboard and touch