The History of Zip, Mini Sudoku & Queens
Daily logic puzzles that turned grid-filling into a viral morning habit.
Zip: the single-path lineage
Zip sits in the family of Hamiltonian path puzzles. You connect numbered cells in order and must cover the whole board without crossing yourself. The concept draws on classic graph theory research dating back to the 19th century, but the modern interface keeps everything tactile: drag, connect, and immediately see whether the remaining cells stay reachable.
Mini Sudoku: 6×6 logic on fast-forward
Mini Sudoku trims the traditional 9×9 board into a 6×6 grid with 3×2 boxes. Japanese newspapers experimented with the size years ago, but LinkedIn’s mobile game brought it to the mainstream. The compact board keeps the deduction density high while letting players finish in under two minutes.
Queens: The Star Battle tradition
The Queens Game is based on a logic puzzle type often called "Star Battle" or "Tango." It emerged from competitive puzzle championships (like the World Puzzle Championship) where solvers had to place stars in a grid with column, row, and region constraints.
The "Queens" theme simplifies the rules for a general audience—invoking the chess rule that queens attack diagonally, vertically, and horizontally. Its clean visual design and colorful regions make it an intuitive but deep challenge.
All three puzzles—Zip, Mini Sudoku, and Queens—reward clarity over guesswork. Zip highlights route planning, Mini Sudoku focuses on elimination, and Queens demands strict spatial exclusion. Alternating between them builds a complete logic toolkit.
Zip Game Unlimited now hosts all three experiences so you can swap modes without leaving the site: blaze through number paths, solve 6×6 grids, or place your Queens, all in one place.