| General | Equipment | Books | |
My speculation on how size#s relate to measured thickness is this:
1 shaku(尺) = 10/33m; 1 bu(分) = .01 shakuEquipment Dimensions:
dimension | JP | SI |
---|---|---|
board length | 1.5 shaku | 45.45cm |
board width | 1.4 shaku | 42.42cm |
table board thickness | 1 or 2 sun | 3cm or 6cm |
floor board thickness | 3–6 sun | 9.1cm–18.2cm |
floor board leg height | 4 sun | 12.1cm |
grid cell length | 1.5尺/19 ≅ 7.89 bu | ≅23.9mm |
grid cell width | 1.4尺/19 ≅ 7.37 bu | ≅22.3mm |
grid line width | ≅0.8mm | |
star point diameter | 1 bu | 3mm |
white stone thickness | SPECULATION (see graph above!): #33 = 1/33 shaku ≅ 3.03 bu[1][2] Δ0.1 bu per #size[3] sizes range from #22 to #45 |
#33 ≅ *(10/33)*1000/33 = 9.18mm |
black stone thickness | white + 0.1 bu | white + 0.3mm |
white stone diameter | 7.2 bu | 21.8mm |
black stone diameter | 7.3 bu | 22.1mm |
JP units to Metric conversion | ||
shaku 尺 | 1 shaku | 10/33m = 30.3cm |
sun 寸 | 1/10 shaku | 3.03cm |
bu 分 | 1/100 shaku | 3.03mm |
Footnotes | ||
[1] | Size of Go Stones at Kurokigoishi | |
[2] | Wikipedia: Shaku (unit) | |
[3] | rec.games.go: Go Board Dimensions, by Robert Seymour |