Proposal to add standardized variation sequences for chess notation

[Kent Karlsson]

Den 2017-04-06 01:25, skrev "Michael Everson" <everson at evertype.com>:

> Oh, here. This is what I would add.
> 
> 2581 FE00; Chessboard box drawing; # LOWER ONE EIGHTH BLOCK
> 258F FE00; Chessboard box drawing; # LEFT ONE EIGHTH BLOCK
> 2594 FE00; Chessboard box drawing; # UPPER ONE EIGHTH BLOCK
> 2595 FE00; Chessboard box drawing; # RIGHT ONE EIGHTH BLOCK
> 2596 FE00; Chessboard box drawing; # QUADRANT LOWER LEFT
> 2597 FE00; Chessboard box drawing; # QUADRANT LOWER RIGHT
> 2598 FE00; Chessboard box drawing; # QUADRANT UPPER LEFT
> 259D FE00; Chessboard box drawing; # QUADRANT UPPER RIGHT

Instead of that, I'd suggest:
2500 FE00; Chessboard box drawing (top); # BOX DRAWINGS LIGHT HORIZONTAL
(U+2500)
2500 FE01; Chessboard box drawing (bottom); # BOX DRAWINGS LIGHT HORIZONTAL
(U+2500)
2502 FE00; Chessboard box drawing (left); # BOX DRAWINGS LIGHT VERTICAL
(U+2502)
2502 FE01; Chessboard box drawing (right); # BOX DRAWINGS LIGHT VERTICAL
(U+2502)
250C FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT DOWN AND RIGHT
(U+250C)
2510 FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT DOWN AND LEFT
(U+2510)
2514 FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT UP AND RIGHT
(U+2514)
2518 FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT UP AND LEFT (U+2518)

These are more likely to be supported (by (fixed-width) fonts) in fallback
than the ones you suggest.
They are also intended for box drawing (unlike the ones you suggest).

Perhaps also, since you exemplify also with double borders in your document:
2550 FE00; Chessboard box drawing (top); # BOX DRAWINGS DOUBLE HORIZONTAL
(U+2550)
2550 FE01; Chessboard box drawing (bottom); # BOX DRAWINGS DOUBLE HORIZONTAL
(U+2550)
2551 FE00; Chessboard box drawing (left); # BOX DRAWINGS DOUBLE VERTICAL
(U+2551)
2551 FE01; Chessboard box drawing (right); # BOX DRAWINGS DOUBLE VERTICAL
(U+2551)
2554 FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE DOWN AND RIGHT
(U+2554)
2557 FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE DOWN AND LEFT
(U+2557)
255A FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE UP AND RIGHT
(U+255A)
255D FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE UP AND LEFT
(U+255D)

/Kent K

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