Four in a row with chess queens.

Introducing quantum physics without mathematics.

The famous transport puzzle has come to Zillions!

Fill the board with a chain of rods.

A small African "3 in row" traditional game.

Relign the 9x9 grid's 3x3 sections, to match regular* Sudoku solution rules.

A known two-deck Solitaire (Patience) game.

Numbers are restricted from occupying the same relative positions within other 3x3 sections.

Sudoku variant in which added total figures are provided for their nearest three squares in a row or column.

CircleSquare numbers (1,2,3 - 4,5,6 - and 7,8,9) are restricted to their outline shapes.