Just a "SIMPLE" (my second) duke-match level ;-)))))))

BY 

L        ii      t       t      |
L        ii    ttttt   ttttt    |    eeee
L                t       t      |    e  e
L         i      t       t      |    eee
L         i      t       t      |    e
L         i      t       t      |    e
LLLLLLL   i       t       t      |    eee
