[ [  0, 0,-1, 0, 0,-1,-1 ],
  [ -2, 0, 1, 0, 0, 0, 0 ],
  [  0, 0, 0, 0, 0, 0, 0 ],
  [  1, 0, 0, 0,-1, 0, 0 ],
  [  0, 0, 0, 1, 1, 0, 0 ],
  [  0, 1, 0, 0, 0, 1, 1 ],
  [  0,-1, 0,-2, 0, 0, 0 ],
  [  0, 0, 0, 0, 0, 0, 0 ],
  [  0, 0, 1, 0, 0, 0, 0 ] ]