| |   | For the eight edges of the second and third level there are only four positions on the third level, from which the stones are to bring to their place in the meant two slices. More problematic are distributions on those two horizontal levels, which have to be regarded separately. Here too rules the fact, that optical correct two-edge-pairs bring a relation the usage of the 4cube as 3cube. The consequences for the case of position on the fourth level are nearly identical, the scheme repeats. As memnonic hint may be: the vertical slice, the edge is on, is moved as first. | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | | | The move of a stone from third level by moving one from the second slice is a probate mean, two work on two isolated stones at once. | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | | | Edges on the second and the third slice can be executed at once; bringing them to one place and flip them with a sequence from the 3cube: | | |  |  | |  | |  | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | | |  | |  | | | | The places at beginning can be free; but if two edges are fixed, it becomes more difficult finding fitting pairs. The above shown flip-maneuver can be of any form, a trained 3cuber masters at least one of them. The various chances coming out of such a constellation, as edges to move and flip together I won't refer to; they are treated under the 3cube. | | | | | | |   | Für die acht Kanten der zweiten und dritten Schicht sind nur vier Stellungen auf der dritten Ebene vorhanden, von denen aus die Steine an ihren Platz in den gemeinten zwei Schichten zu bringen sind. Problematischer sind Verteilungen auf eben diesen beiden horizontalen Ebenen, die gesondert betrachtet werden müssen. Auch hier gilt, daß optisch korrekte Zwei-Kanten-Paare einen Ansatz für den 3er-Bezug liefern. Die Folgen für den Fall der Lage auf der vierten Ebene sind nahezu identisch, das Schema wiederholt sich. Als Merksatz mag gelten: diejenige vertikale Schicht, auf der der zu bearbeitende Stein liegt, wird als erste bewegt. | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | | | Das Nachziehen eines Kantensteines von der dritten Ebene beim Bewegen eines Zweit-Schicht-Steines ist ein effektives Mittel, zwei von einander isolierte Kanten gleichzeitig zu bearbeiten. | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | |  |  | |  | | | |  | |  | | | | Kanten auf der 2. und 3. Schicht können ebenfalls gemeinsam bearbeitet werden; man bringt sie von verschiedenen Orten an einen gemeinsamen Platz und kann sie dann mit einem Wendezug des 3er-Würfels austauschen: | | |  |  | |  | |  | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |  |  |  |  |  |  |  |  |  |  | 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 | | | | Die Orte können anfangs beliebig sein; sobald aber zwei Kanten fixiert sind, wird es schwerer, passende Paare zu finden. Das oben angezeigte Wendemanöver kann von beliebiger Form sein, ein geübter 3er-Dreher beherrscht mindestens eines davon. Auf die vielfältigen Möglichkeiten, die sich aus einer solchen Konstellation ergeben, sowie gemeinsam zu wendende und tauschende korrekt verbundener Kantenpaare möchte ich nicht eingehen; diese sind ausreichend unter dem 3er Würfel behandelt. | | | | | |