Man pages matching name tcprulescheck in section 1:

tcprulescheck.1.en	debian 10 / ucspi-tcp
tcprulescheck.1.en	debian 10 / ucspi-tcp-ipv6
tcprulescheck.1.en	debian 11 / ucspi-tcp
tcprulescheck.1.en	debian 11 / ucspi-tcp-ipv6
tcprulescheck.1.en	debian 12 / ucspi-tcp
tcprulescheck.1.en	debian 12 / ucspi-tcp-ipv6