Dragan
>>Now for the second part: their mother married again and had another kid in that marriage. Later, when she died, her quarter of the land needed to be divided under the same constraints (equal and geometrically identical), but into five parts now.<<
Easy:
12
34
The 5th piece is only visible if you look into the 6th dimension.
Regards
JR
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1