/usr/share/man/man6/xblast-tnt-smpf.6x.gz is in xblast-tnt 2.10.4-4+b1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man6/xblast-tnt.6x.gz
/usr/share/man/man6/xblast-tnt.6x.gz