A MARUPEKE puzzle consists of a square grid in which some of the squares are blacked out in the manner of a
crossword puzzle. Some of the remaining squares contain either an X or a O. To solve such a puzzle,
the solver must place an X or a O into each of the remaining squares in such a way that there are
never three Xs or three Os in line, either horizontally, vertically or diagonally. Each puzzle has a
unique solution which does not require any guesswork to achieve. Puzzles can be built in sizes from 4x4 up to
The following graphics show a Marupeke puzzle in the Crossword Express
and a PNG graphic file produced by the program's print function, showing the complete puzzle solution.
See also a full size version of a PDF file.
The key features of the Crossword Express Marupeke Construction function are as follows:-
Fully automatic construction of puzzles.
Puzzles can be made in a range of square sizes from a minimum of 4x4 to a maximum of 10x10.
A multi-build function allows the construction of many puzzles (thousands if necessary) in a single operation.
Puzzles can be printed direct to the printer or, if you install the appropriate software, it can be sent to a PDF file. The
recommended software for this purpose is Primo PDF which
you can download free from their website, although you might consider sending them a small donation if
you find their program useful. Mac users will be able to create a PDF file directly from the screen provided by
the printer driver.
Formatted output can also be exported from the Print screen to graphic files which conform to the BMP, GIF, JPG or PNG formats.
A fully interactive Solve function is available to allow you to solve the puzzles "on screen" without needing to print them.