**A game of strategy for two players,
on the current asteroid mission of NASA.**

Game design by Ingo Althöfer; Copyright July 2007, updated April 2019.

Contact: 3-hirn "at" althofer.de

In the game, the two players are

Mission Control gets all twelve bars and sorts the two sets apart. One set, consisting of one bar for each length 2, 3, 4, 5, 6, 7, will be used in Phase 1. The other set is meant for the second phase.

(b) Mission Control places a "new" bar of appropriate length on the board.

(c) Nature moves Vesta by "some" elementary steps. The maximum number of steps is given by the length of the bar just inserted by Mission Control.

A bar may be placed only on free parts of the board, in one of the following three orientations: vertically flat, horizontally flat, or upright. In the two "flat" orientations the number of squares needed is just the bar's length. In case of "upright" orientation this bar occupies exactly one square of the board.

One special rule holds for the DAWN-bar (with length 7): it is allowed to jut out at a boundary of the board (see picture).

(b) Mission Control places a "new" bar of appropriate length on the board.

(c) Nature moves Ceres by "some" elementary steps. The maximum number of steps is given by the length of the bar just inserted by Mission Control.

For (a), (b), and (c), the explanations from Phase 1 hold. In addition, the following rules concern (c): Ceres is not allowed to move above Vesta. Vesta is totally immobile in Phase 2.

These two values are combined in a slightly strange way: the larger one of F(C) and F(V) is taken plus the difference between them. In formulae:

Result = max {F(C), F(V)} + [ max{F(C), F(V)} - min{F(C), F(V)} ]

or in short:

Ceres and Vesta share 10 free squares. There is one additional free square, reachable only for Vesta.

F(C)=7 and F(V)=5 give result 7 + (7-5) = 9.

F(C)=10 and F(V)=11 give result 11 + (11-10) = 12.

F(C)=8 and F(V)=8 give result 8 + (8-8) = 8.

F(C)=0 and F(V)=6 give result 6 + (6-0) = 12.

Typical scores for single games are between 3 and 18.

* After Phase 1 the board has already some

* Sometimes Nature should try to provoke situations where in the endgame the bars of Mission Control are too long to be

* Mission Control should reach for two things:

* Astrophysicists

* The game DAWN 11/15 has a predecessor, namely

During the exhibition "Gott würfelt nicht" in Göttingen, in summer 2005, "Ceres and Gauss" could by played on top of a large table. See the picture.

* Sincerest thanks go to

* Link to the DAWN mission website

The extended Dawn mission concluded in November 2018. Our game, however, remains a nice playing ground.