Gin wrote:Hello, Can somebody tell me where can I buy Go Stone Yunzi convex Jade colour?
Thank you
Hi Gin,
I reposted your question in the right forum.
About your request, I never heard of "jade coloured" Yunzi stones.
According my knowledge, "original" Yunzi* stones are produced with a special mixture that looks black in direct light. When the black stones are illuminated from behind they shows a dark green colour.
* Yunzi meaning "from Yunnan" that is China province where they are produced
I have seen some double convex Green glass stones here and there.
FWIW, I have an elderly set of Jade-coloured Yunzi stones, they are single-convex, though
These Yunzi with “Jade luster” are not simply “coloured”: since Yunzi is made of stone powder (molten/sintered), in this case the mixture contains a certain amount of powdered Jade (see also https://en.wikipedia.org/wiki/Yunzi).
<edit>
And yes, the black stones of both kinds of Yunzi stones (“green luster” and B & W) look (dark) green when illuminated from behind—at least mine do, the green single convex ones as well as the B & W double convex ones. </edit>
“The only difference between me and a madman is that I’m not mad.” — Salvador Dali
Bonobo wrote:FWIW, I have an elderly set of Jade-coloured Yunzi stones, they are single-convex, though
These Yunzi with “Jade luster” are not simply “coloured”: since Yunzi is made of stone powder (molten/sintered), in this case the mixture contains a certain amount of powdered Jade
I knew I can still learn something new by re-posting the message here!
Can you share some picture of this set?
Galation
When you play Weiqi you are joining millions of people across four thousand years of time.
Jonathan Hop - So You Want to Play Go?
Hhm. Whom are you addressing? Or do you know something about Bonobo that we do not?
Still officially AGA 5d but I play so irregularly these days that I am probably only 3d or 4d over the board (but hopefully still 5d in terms of knowledge, theory and the ability to contribute).
Am I correct in my belief that new sets no longer come with those straw bowls? I think they're being shipped in awful plastic mockeries of those, now.
I have been thinking about getting a set of single-convex yunzi stones. I played with them at a recent tournament in Berlin and completely fell in love with them - the deliberate, unambiguous way that they sit on the board adds "weight" to each move.
At first, I thought that single-convex stones would annoy me because of the need to turn them the right way up before placing them but this became automatic after a very short time. I suppose they might be sub-optimal under severe blitz conditions.
(In Berlin, the stones were awesome but the clocks were dire - plastic jobs with very distinctive, bent minute-hands. Despite 60 minutes main time and to my great surprise, I won 2 of 8 games on the clock that weekend! I'm fairly certain that these outcomes were not caused by material-related things but, if they were, it would have been the clocks, not the need to turn the single-convex stones the right way up.)
No worries, nothing to be sorry for—all is well We’re all here for the fun of it, no?
Also, in a way it’s really nice to be elevated to an international citizen rather than be confined in the (in my perception sometimes too small) space of Germany.
And as for “Mr. Bonobo” (which now makes me Anglosaxon also ): please just call me Tom, all my friends do so, and it’s economic also
Peace, T♥m
“The only difference between me and a madman is that I’m not mad.” — Salvador Dali
Charlie wrote:At first, I thought that single-convex stones would annoy me because of the need to turn them the right way up before placing them but this became automatic after a very short time.
They're great for playing out variations on the board - just place them upside down.
I realise I'm a bit late here but thought you might like to see some more photos.
I also have a set of the "jade lustre" single convex Yunzi, purchased from YMI back around 2009 I think. I read somewhere that they stopped making them, though it was just in some forum not an official source.
I measured five of each colour. The black ones ranged from 21.3mm to 22.2mm diameter with a mean of 21.78. They were all 5.9mm thick. The white ones ranged from 21.5 to 22.1mm diameter with a mean of 21.78. The thicknesses of the white stones ranged from 5.9mm to 6.1mm with a mean of 6.0.
I took some photos to show the colour a bit more clearly (though still won't quite be an accurate representation). When I first got them I was actually disappointed that they were so green, I had thought the colour would be more subtle. Now I quite like them as they are, but I'm also wanting a set of biconvex black and white stones (probably glass/ceramic from Japan or Korea).
It's my first post here so apologies if I don't get this image-posting business right:
Attachments
jade_yunzi3.JPG (45.69 KiB) Viewed 13701 times
jade_yunzi2.JPG (209.39 KiB) Viewed 13701 times
The translucency of the white stones varies a bit - I think this stone at the front got a bit more jade in the mix, so it's a bit more translucent and looks a bit darker.
jade_yunzi1.JPG (77.46 KiB) Viewed 13701 times
Last edited by jedwardh on Tue Apr 25, 2017 12:28 am, edited 1 time in total.
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