Arrange the numbered tiles in natural order, by moving the rows and columns. Our logical funny games are made to increases the player's intelligence's "muscles". The player trains his brain and has fun too. Einstein's intelligence is not impossible to achieve! The player can have pleasure and train his intelligence in the same time. Holotronix offers multiple versions of the X-Numbers game, which can be played with the same rules, but involve different strategies, in order to provide more pleasure in the game. The Sam Lloyd's puzzle may look similar with Cross-Numbers, because of the sliding tiles. Even if the mathematics behind X-Numbers is based on the permutation theory too, there are notable differences, and the solving algorithms are quite different. By dragging the tiles with the left button of the mouse, the tiles slide on their row or column. The dimensions can be changed with "Edit->Dimensions". The keyboard can do these operations too, with the arrow keys. Holding down the Shift key will move only the cursor. The cursor indicates the current row and column. By holding down the Control key, the line's tiles can be slided. It is mathematically proved that every game is winnable.

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