SNAKE
for KIDS

1. The goal of the game Snake is to fill empty fields in table with numbers from 1 to 20 (number of fields in the table).

2. The table above is correctly filled with numbers forming numerical snake here:

3. Every field must have exact one neighbour (right, left, up or down) with value fewer than one.

And at the same time, the same field must have exact one neighbour (right, left, up or down) with value more than one. There are only two exceptions. The field with number 1 must have neighbour with value 2. The field with maximal number must have neighbor with value fewer than one. At the end, snake is creared going through each field in the table without any crossover.