Mechanical-mathematical diagonal number board game

A system for a mechanical-mathematical diagonal number board game comprising:

• a game timer;
• a game board cartridge;
• a plurality of game boards for inserting into the game board cartridge;
• a plurality of numbered game tiles with each of the plurality of tiles having playing tile indicia corresponding to an integer selected within a range of 0 to 9;
• a play base having a plurality of grids and plurality of timer spots for receiving the game timer with each grid having a plurality of holding cells for receiving one of the plurality of numbered game tiles;
• a game board cartridge carrier for removably holding the game board cartridge with the game board cartridge receiving at least one of the plurality of game boards;
• and
• wherein the game board cartridge is positioned over the play base and can be rotated in relation thereto;
• wherein each of the plurality of game boards is marked with a game board grid having a plurality of rows and columns forming a plurality of squares, with each of the plurality of squares having a game board indicia corresponding to an integer selected within the range of 0 to 9, and with none of the integers repeating within the same row, same column, or with respect to a connecting diagonal square;
• and
• wherein the plurality of tiles are drawn during game play, so that a player can make a diagonal connection to score points by matching the playing tile indicia with the game board indicia during a predetermined time period measured by the game timer.