601-YDB-04 Board craftsman Mr. YOSHIDA made Shin kaya [Spruce wood] Tenchi-masa 2.9-Sun (thick about 90 mm) No.79085F

One cutting side has a few intergrown knots.
*Please check the photo images.

Yoshida Gobanten was established in 1916 and continuously made various Go and Shogi boards for more than 100years.
The owner takes over the name of 'Master Yoshida Torayoshi' for generations.
We are happy to offer these special boards made by the Go board master Mr. YOSHIDA Torayoshi, for his devotion and his long years of experience and outstanding technique.

Shin-kaya wood, also known as "new kaya", is a spruce wood grown mainly in North America, which is different from Japanese kaya.
Spruce wood is widely used because it grows straight, is odorless, has low oil content, is easy to process, and is in good supply, making it relatively inexpensive to produce Go/shogi boards.
Spruce board is sold at an affordable price but it has a similar grain and color to honkaya but is not as high quality as honkaya wood.
The quality of the spruce is comparable to that of honkaya or Hyuga kaya, but it is less prone to deformation and cracking.
Spruce wood is also used as SPF (spruce, pine, fir) material for furniture and building materials, but unlike kaya wood, it shows significant deterioration over time, such as changes in wood color, and has a shorter life span.

*Go board materials are explained detail in "How to choose a board".
Please take a look.
Go to "How to choose a board".

"Tenchi-masa" literally means the grain runs from the top to the bottom or from the sky (ten) to the earth (chi).
As there is no visible itame (flat grain), you can see the beautiful masame (straight grain) from the top to the bottom of the board.
When the top and bottom surfaces have masame (straight grain) but the side has itame (flat grain), the board is classified as tenchi-masa.
Just like the shihou-masa board, the tenchi-masa board is made from a large-diameter, well-aged tree.
The kaya (Japanese Torreya) tenchi-masa board is synonymous with the finest Go boards made of valuable wood.
Also, most of the boards called tsugi-ban or hagi-ban (composition boards made from several pieces of wood joined together) have tenchi-masa or masame (straight grain).

*Go board cutting styles are explained detail in "How to choose a board".
Please take a look.
Go to "How to choose a board".

• Board craftsman Mr. YOSHIDA made Shin kaya [Spruce wood] Tenchi-masa 2.9-Sun (thick about 90 mm)
  Product No. : No.79085F
  Size (height × width × thick)：About 462 mm × 432 mm × 90 mm
  Weight：About 7.7 kg
  Included：Certificate
• 1,000 JPY flat rate shipping within Japan, free shipping for purchases totaling 20,000 JPY or more.
  Please bear the actual cost for shipping charges outside Japan.

You may find small knots, burrs, rolled-in bark as all these products are made of natural trees.
There may be some small flaw or scratch, dent, chipping.