●Snake puzzles consist of a square grid of cells●Two cells are marked, one is the start cell and the other is the finish cell●Try to draw a single line (a snake) between the two marked cells●The single line cannot cross over itself, even diagonally●The numbers that are shown outside of the cells indicate how many of the cells are to be filled in for each row and column

Number Link puzzles consist of a grid that has numbers in some cells. You have to try to connect each pair of numbers with a single continuous line (horizontal or vertical lines only). The lines cannot cross or touch each other.

Trace Number Puzzles consist of a grid that has numbers in some cells. Try to connect all sets of numbers, for example, from 1 to 6 with a single continuous horizontal or vertical line. The lines cannot cross or touch each other. There are over 300 puzzles, with easy, medium and hard levels.

● Creek puzzles consist of a square grid of cells● Some circles with the numbers 0 to 4 have been placed on the corners of some cells● The number in the circle indicates how many of the adjacent cells must be filled in● Fill in the cells according to the numbers stated in the circles● All the white cells must be connected, either vertically or horizontally

●Water Fun consists of a square grid of cells●Try to fill the regions with water, imagine that each region is like an empty water container●The numbers next to the grid indicates the number of cells that must be filled with water in each row or column●Connected regions of cells (if unobstructed) must have the same level of water, just like in a real water container

●Linesweeper puzzles consist of a grid of cells in which some of the cells have numbers in them ●Try to draw a single continuous loop, which does not intersect itself ●The loop cannot pass through any of the cells with numbers in ●The number that is in the cell shows how many of the 8 surrounding cells the loop should pass through ●A zero in a cell means that the loop cannot pass through any of the 8 surrounding cells

Mathrax Puzzles consist of a grid with cells. Try to fill in each cell with numbers from 1 to 6 (when the size of the grid is 6x6) Note: if the grid is 7x7 then the numbers to fill will be 1 to 7. All numbers may only appear once in any row or column. Circles on the diagonal lines contain conditions that must be met.