I am fascinated by Japanese grid puzzles from Nikoli ... and in this spirit I am sharing with you  my new invention for 2 players.

1. For this game we use 9x9 grid (or board if you wish).
2. There are 9 categories of numbers : 9 ones (111111111), 9 twos (222222222), 9 threes ... and finally  9  nines ...
3. Software randomly distributes these digits on the board ...
4. Players in their turns cross outs 3 (they have to touch each other) digits either vertically, horizontally or diagonally ,,,
5. Below and above the board software displays how many of each category members players
    collected ...
6. Digits already crossed out cannot be used again ...
7. Players try to win as many categories as possible ... to win a category it means to have more digits
    than the opponent in a given category ... let's say player A collected 6 fives and player B only 2 fives ... the winner in this  category is player A .
8. Game continues this way until there are no more 3 consecutive digits to be cross out ...
9. Digits in each category are compared and the player who won more categories is the winner ... in case
    they won the same number of categories, there is no winner and the games ends as a draw ...
***
Remarks:
If players secures 5 digits in any category, he/she wins this category ...
Try to develop your own winning category(ies) ... sometimes only 4 or even 3 digits secures your winning category ... you can do this by careful play and eliminating some digits and areas on the board ...
Do not be discouraged when the opponent collects many digits in one or two categories ... it's almost certain he/she forgets about other categories ...
This game is very easy to play but as usual very hard to outsmart your opponent ...
Cheers
Andy.