Computer version of those cheap plastic puzzles with 15 white tiles
numbered 1 through 15 and an empty square in a 4 by 4 arrangement.  This
one is more challenging since you can't solve it by just prying out the
pieces.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  296     974  30.4% -lh5- 4368 Mar 14  1989 Pz15.info
[generic]                   33      33 100.0% -lh0- 41d4 Mar 14  1989 Pz15/.info
[generic]                   57      57 100.0% -lh0- 712e Mar 14  1989 Pz15/Compile.it
[generic]                  463    4173  11.1% -lh5- 90e2 Mar 14  1989 Pz15/imgs.c
[generic]                  432     662  65.3% -lh5- b746 Mar 14  1989 Pz15/POSTER
[generic]                 2222    5482  40.5% -lh5- d2fd Mar 14  1989 Pz15/pz.c
[generic]                 1611    2808  57.4% -lh5- 30de Mar 14  1989 Pz15/Pz15
[generic]                  164     541  30.3% -lh5- d94d Mar 14  1989 Pz15/Pz15.info
[generic]                  841    1463  57.5% -lh5- 22ba Mar 14  1989 Pz15/ReadMe.Pz15
[generic]                  442    2566  17.2% -lh5- 9087 Mar 14  1989 Pz15/ReadMe.Pz15.info
[generic]                  120     248  48.4% -lh5- 32a8 Mar 14  1989 Pz15/tile0
[generic]                  134     248  54.0% -lh5- 89e3 Mar 14  1989 Pz15/tile1
[generic]                  140     248  56.5% -lh5- ad52 Mar 14  1989 Pz15/tile10
[generic]                  141     248  56.9% -lh5- f5d8 Mar 14  1989 Pz15/tile11
[generic]                  146     248  58.9% -lh5- eca9 Mar 14  1989 Pz15/tile12
[generic]                  143     248  57.7% -lh5- 49ba Mar 14  1989 Pz15/tile13
[generic]                  148     248  59.7% -lh5- 0d95 Mar 14  1989 Pz15/tile14
[generic]                  144     248  58.1% -lh5- 7ae8 Mar 14  1989 Pz15/tile15
[generic]                  139     248  56.0% -lh5- 25b7 Mar 14  1989 Pz15/tile2
[generic]                  135     248  54.4% -lh5- c8ec Mar 14  1989 Pz15/tile3
[generic]                  138     248  55.6% -lh5- 8bbf Mar 14  1989 Pz15/tile4
[generic]                  138     248  55.6% -lh5- 68aa Mar 14  1989 Pz15/tile5
[generic]                  138     248  55.6% -lh5- c655 Mar 14  1989 Pz15/tile6
[generic]                  135     248  54.4% -lh5- 954b Mar 14  1989 Pz15/tile7
[generic]                  130     248  52.4% -lh5- 1893 Mar 14  1989 Pz15/tile8
[generic]                  138     248  55.6% -lh5- 52a9 Mar 14  1989 Pz15/tile9
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        26 files    8768   22727  38.6%            Mar 14  1989