Tüfteln is German for "tinkering", and that’s what you must do in this dice game to land a top score.

The game includes a pad of double-sided player sheets, and each player has their own sheet, all showing either side A or B. The player sheet has a 3x3 grid of 2x2 squares with the numbers 1-6 being placed in six of the 36 spaces; the A side has a number of blue "bridges" that link two blue spaces in adjacent squares, while all of the other spaces are white, whereas the B side has six spaces in each of five colors, apart from the starting 1-6 digits.

On a turn, any player rolls the two six-sided dice. On the A side, you place the die results in any two empty white spaces or in the blue spaces that make up a bridge. On the B side, you place the die results in two empty spaces of the same color.

After fifteen turns, all of the spaces are filled, and you total your score, earning:

1 point for a square with four different digits
2 points for an adjacent pair of numbers
3 points for two adjacent pairs of numbers
4 points for two pairs of numbers placed diagonally in a square
5 points for four identical numbers
6 points for a straight of numbers in clockwise order

If you score all six types of formations, you receive a bonus of 7 points. Whoever has the highest score wins.