hyperpape wrote:I'll have to go home and check* if that lower-right corner has ever been played before.
(* =one of you check for me now)
i guess i am late for you, but someone else might be interested too.
data based on GoGoD, summer 2011:
depending on what exact position you mean, the pattern is rare to non-existent.
namely, no match for position at move 15 considering the lower right quarter.
4 matches for move 13 searching lower right quarter. two of them were high handicaps, the other two Wang Qun - Rui Naiwei (1988) and Luo Xihe - Cao Dayuan (1995)
36 matches for move 13 with 9x9 square considered (that is, without the right side star). more than half of them are old Chinese games
the closest match is the above mentioned Wang-Rui game, one of the only two where white doesn't immediately respond at 2-2 (the other one is a 7 handicap)
$$Bcm13 Wang Qun (W) - Rui Naiwei, W+R
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 4 . 6 . . . . . . . . . . . . . . |
$$ | . . 3 O . . . . . . . . . O . O O 1 . |
$$ | . . 5 , . . . . . , . 2 . . . X X . . |
$$ | . . . X . . . . . . . . . . X . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . 7 . . . |
$$ | . . . 8 . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
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$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Bcm13 Wang Qun (W) - Rui Naiwei, W+R
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 4 . 6 . . . . . . . . . . . . . . |
$$ | . . 3 O . . . . . . . . . O . O O 1 . |
$$ | . . 5 , . . . . . , . 2 . . . X X . . |
$$ | . . . X . . . . . . . . . . X . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . 7 . . . |
$$ | . . . 8 . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . , . . . . . X . . . |
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$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]