ShogiGUI-piece-sets/piece-board_dimensions.txt at master · Little-Mage/ShogiGUI-piece-sets · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
JSA: https://www.shogi.or.jp/faq/item/
Standard sizes:
12 sun	36.3636 cm vertically
11 sun	33.333 cm horizontally
Margins: 2.5 Bu	分: 0.758 cm

1 square:
Length	3.872 cm = (36.363 - 1.515)/9
Width	3.535 cm = (33.333 - 1.515)/9

The number of pieces in a set:
King	2
Rook	2
Bishop	2
Gold	4
Silver	4
Knight	4
Lance	4
Pawn	19

https://shogi-koma.jp/?mode=f5

Manufacturing method 1 (御蔵・雲南材)

31.5 mm	28 mm	9.5 mm	King
30.5 mm	27 mm	9.0 mm	Rook & Bishop
29.5 mm	26 mm	8.75 mm	Gold & Silver
28.5 mm	25 mm	8.25mm	Knight
28 mm	23 mm	8.0 mm	Lance
27 mm	22.5 mm	7.75 mm	Pawn

Manufacturing method 2 (シャム材)

30.5 mm	26.5 mm	8.5 mm	King
29.5 mm	25.5 mm	8.3 mm	Rook & Bishop
28.5 mm	24.5 mm	8.0 mm	Gold & Silver
27.5 mm	23.0 mm	7.5 mm	Knight
27.5 mm	22.0 mm	7.5 mm	Lance
26.5 mm	21.0 mm	6.5 mm	Pawn

"If your piece has the shape with the top at an angle of 144 degrees, the middles at an angle of 117 degrees, and the bottoms of 81 degrees, it means you got ideal pieces."
https://www.i-tsu-tsu.co.jp/en/blog/shogi/864