Beer card cash nine winners, ending with the beer card. If the diamonds don't break, there's a chance that a defender will be pseudosqueezed and choose to discard a diamond. For declarer to discard three diamond honors risks losing the contract unnecessarily, and so forfeits the beer, even if diamonds turn out to break normally. Alternately, if North-South only exclude diamond partials from beer card enforcement, then the declarer in six diamonds can easily beer assuming trumps break. Declarer wins the (say) heart lead in the South hand and cashes one high trump in the North hand. When they break, declarer cashes
Ten of diamonds decahedron Ten of diamonds decahedron In geometry, the ten-of-diamonds decahedron is a space-filling polyhedron with 10 faces, 2 opposite rhombi with orthogonal major axes, connected by 8 identical isosceles triangle faces. Michael Goldberg references it by the playing card name, "ten-of-diamonds", as a 10-faced polyhedron with two opposite rhombic (diamond-shaped) faces. He catalogued it in a 1982 paper as 10-II, the second in a list of 26 known space-filling decahedra. If the space-filling polyhedron is placed in a 3-D coordinate grid, the coordinates for the 8 vertices can be given as: (0, ±2, −1), (±2, 0, 1), (±1, 0, −1), (0,