If you have nothing better to do, take a consecutive portion of your recent scored 19x19 games and, in the final position of each game, find the single largest rectangle you can fit into your own area – that’s *area*, not *territory*, meaning that you can include your own living stones (and any captures).

Catalogue the area of the maximal rectangles and average them – this gives you the “rectangle measure”.

I don’t know yet whether the measure is at all meaningful, which is part of the fun.

Here is my result, from ten of my consecutive scored games at mid-SDK.

No. | Opponent | Rect. |
---|---|---|

1 | Cadspen | 40 |

2 | GeorgeGu | 35 |

3 | MichaelLebl | 42 |

4 | brough | 50 |

5 | cici | 24 |

6 | Koba | 78 |

7 | sanderl | 20 |

8 | Clossius | 42 |

9 | knowing | 66 |

10 | alemitrani | 35 |

avg. | — | 43.2 |

avg. | [nearest rect.] | 44 |

So my rectangular measure is 43.2, or 44 to the nearest rectangle.

If I discard Koba 78 as an outlier then I get a measure of 39⅓, rounding to a rectangular 39.