SDG uses the following notational system for Generatorb games:

  • Movement: a1-a3
  • Movement with Split: a3~c5 (that's a tilde)
  • Movement resulting in Spheroid: a3-c5=2 (or a3~c5=2)
  • Movement resulting in Globe: a3-c5=3 (or a3~c5=3)
  • Capture: a1xa5
  • Capture via Split: a1*a5

Implemented Rules

The SDG implementation now contains the variants Globes and Front Line by default.


Each player would start with 1 globe. Red's globe would be placed on D4, blue's globe would be placed on E5. On your turn you can either move a globe or move one of your other pieces (basically globes are just another piece).

  • Globes move along the board like a queen in chess.
  • Globes cannot jump over other game pieces.
  • Globes cannot be placed on a generatorb core, but may be placed onto any other generatorb space.
  • Globes cannot be captured or capture other game pieces.
  • Globes cannot be placed or created orthogonally next to another globe regardless of what color the other globe is.
  • Once created, globes cannot be split into its component parts.
  • Only your own orbs and spheroids may use your globe to jump over as a move.
  • You can can create more globes by creating a stack of three. Examples: Place an orb on top of one of your spheriods or split a spheroid and place half on top of another one of your spheroids.

Front Line

The a8-h1 line is designated by a diagonal line. In addition to the existing victory conditions, you can now win by occupying any 5 of the 8 squares on the front line.

Variant Thought

I was thinking that for a variant maybe that the starting set-up would be only the 4 pieces in generatorb with no globes on the board. The game would still have globes, but you wouldn’t start with one. I was wondering if this would add to the strategy or would players just immediately build a globe and place it where the start in the regular game. Just a thought. I have to do some play testing to see if other beginning strategies come up. –Istari–

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