/sources/plan9/sys/games/lib/sokoban/images/
      3827 2004-09-22 cargo.bit
       658 2004-09-22 empty.bit
      1879 2004-09-22 goal.bit
      4286 2004-09-22 goalcargo.bit
      2707 2004-09-22 left.bit
      2726 2004-09-22 right.bit
      5335 2004-09-22 wall.bit
       572 2004-09-22 win.bit