Ho! Ho! Ho! An Advent Calendar of Puzzles
December is here, and the run up to Christmas has well and truly started. Mince pies are mincing, mulled wine is mulling and Advent calendars the world over are already taking a battering.
Although I’d assert the row of houses runs both left to right *and* right to left (after all, you can walk up and down the same street).
Also, any viable configuration is one where rule 4 is satisfied (the green house is on the immediate left of the white house) so that imposes one hard…