# Grid time

**Discrete Mathematics**Level 5

In the center of 2015*2015 grid is placed a common dice with the numbers 1,2,3,4,5,6 written on its sides, so that two numbers on opposite sides add up to 7.

A move by a player consists of 3 steps:

First step: A player is now allowed to rotate the dice, so that any of its numbers shows top.

Second step: The dice is then moved either left or right, which way, that's up to the player's decision, by the number that shows top from the dice.

Third step: The dice is then moved either up or down, which way is also up to the player's decision, by the number that is hidden underneath the cube.

A move that would lead outside the grid is not legal.

How many points on the grid are possible to reach after a finite number of moves?

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