Man pages matching name xtriangles in section 6:

xtriangles.6.en	debian 10 / xmpuzzles
xtriangles.6.en	debian 10 / xpuzzles
xtriangles.6.en	debian 11 / xmpuzzles
xtriangles.6.en	debian 11 / xpuzzles
xtriangles.6.en	debian 12 / xmpuzzles
xtriangles.6.en	debian 12 / xpuzzles