The Seattle Go Center's sign shows this game position:

Click Here To Show Diagram Code

[go]$$ The Seattle Go Center sign
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . X . . . . . . . . O . . . . . . |
$$ | . . . , X . . . . , . . . . X , X . . |
$$ | . X X O X . . . . . . . . . . . . . . |
$$ | . X O . O . O . . . . . . . O O X . . |
$$ | . . . O . . . . . X . . . . X O X . . |
$$ | . . O . . . . . X . . . O O . . X . . |
$$ | . . . . . . . O . . . X . X O . . . . |
$$ | . . . , . . . O X , . . . X O , O . . |
$$ | . . . . . . . O X . X . . . . . . . . |
$$ | . . O . . . . O O X . . X . X . O . . |
$$ | . . . . X . . . . . O . . . . . . . . |
$$ | . . O . . . O . . X O . X . . O . . . |
$$ | . O X O . X X O . . O . . . . . . . . |
$$ | . X X X . X O O . , . . . . . O O X . |
$$ | . . . . . X . . . X . O . . O . . . . |
$$ | . . . . . . . X . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

I've been trying to find its source.

It might possibly be related to Iwamoto Kaoru who originally endowed the SGC. I have run a search through the GoGoD database but with no hits. So. question, does anyone recognize the game?

Much Thanks

Here's the sign and an sgf of the board

Another chance to advertise GoGoD! It is in the database, game 1945-08-04a, and is also known as the Atom Bomb Game, between Iwamoto Kaoru and Hashimoto Utaro.

One hint for similar searches; don't try to reproduce the whole board, since it is too easy to misplace a move or miss one. I took the position of the stones on the top 4 lines of the board, 4 Black stones and 1 White and searched in Kombilo on just that part of the board.

Best wishes.

_________________
No aji, keshi, kifu or kikashi has been harmed in the compiling of this post.
http://www.gogod.co.uk

Specifically, in this instance, the diagram given has an extra black stone in the top right on the second line, which is not on the picture of the sign (nor is it in the game).

Awesome! Thanks.

TMark let me shamelessly plug yours and Mr. Fairbairn's GoGoD, it is definitely the best money I've spent for Go so far. I cannot imagine how anyone could not possibly wrangle a stone or several improvement with study. Any of the several features alone would make it worthwhile, but given all together is a generous bargain. Thanks.

HermanHiddema, Doh! Thanks

Don't use GoGoD. Just go in and ask next time.