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