Welcome to Fifteen puzzle

  10   9   6   4
   1       7   8
   5  14   2   3
  11  13  15  12

Your move: 0 1
OK
  10       6   4
   1   9   7   8
   5  14   2   3
  11  13  15  12

Your move: 0 0
OK
      10   6   4
   1   9   7   8
   5  14   2   3
  11  13  15  12

Your move: 1 0
OK
   1  10   6   4
       9   7   8
   5  14   2   3
  11  13  15  12

Your move: 3 2
Please choose a position next to the empty one!
   1  10   6   4
       9   7   8
   5  14   2   3
  11  13  15  12

Your move: 7 5
Please choose a position within the board!
   1  10   6   4
       9   7   8
   5  14   2   3
  11  13  15  12

Your move: 2 0
OK
   1  10   6   4
   5   9   7   8
      14   2   3
  11  13  15  12

Your move: 3 2
Please choose a position next to the empty one!
   1  10   6   4
   5   9   7   8
      14   2   3
  11  13  15  12

Your move: 2 1
OK
   1  10   6   4
   5   9   7   8
  14       2   3
  11  13  15  12

Your move: 2 2
OK
   1  10   6   4
   5   9   7   8
  14   2       3
  11  13  15  12

Your move: 1 2
OK
   1  10   6   4
   5   9       8
  14   2   7   3
  11  13  15  12

Your move: 0 2
OK
   1  10       4
   5   9   6   8
  14   2   7   3
  11  13  15  12

Your move: 0 1
OK
   1      10   4
   5   9   6   8
  14   2   7   3
  11  13  15  12

Your move: 1 1
OK
   1   9  10   4
   5       6   8
  14   2   7   3
  11  13  15  12

Your move: 2 1
OK
   1   9  10   4
   5   2   6   8
  14       7   3
  11  13  15  12

Your move: 2 2
OK
   1   9  10   4
   5   2   6   8
  14   7       3
  11  13  15  12

Your move: 1 2
OK
   1   9  10   4
   5   2       8
  14   7   6   3
  11  13  15  12

Your move: 0 2
OK
   1   9       4
   5   2  10   8
  14   7   6   3
  11  13  15  12

Your move: 0 1
OK
   1       9   4
   5   2  10   8
  14   7   6   3
  11  13  15  12

Your move: 1 1
OK
   1   2   9   4
   5      10   8
  14   7   6   3
  11  13  15  12

Your move: 1 1
Please choose a position next to the empty one!
   1   2   9   4
   5      10   8
  14   7   6   3
  11  13  15  12