Thread by @tsmullaney

In the lead-up to the June 4/Tiananmen anniversary, Chinese censors (real & algorithmic) are busily catching-and-killing all known Chinese-language references (such as "liusi" and "六四") I thought I'd do my best to make their jobs harder by offering up alternative secret codes.

These codes come from the history of computing in China, and in particular, the history of long-forgotten Input Systems (输入法) whereby Chinese characters were rendered using different combinations of Latin letters and Arabic numerals (typically)

Every so often, I'll tell you a new way to write 六四 using one or another dead/historic Input System that Chinese censors probably have no idea ever existed.

If anyone actually uses any of these codes to communicate about June 4/Tiananmen, then of course, the censors will add the new codes to their algorithms.

But fortunately for us, and unfortunately for the censors, there are literally 100s of dead-and-forgotten Chinese input methods/输入法, so as soon some someone tells me that the censors have "picked up" on one, I'll share another.

Here are 2 to get us started:
1) lhsi or LHSI (input system/输入法="Double Pinyin" or 双拼 from 1978/1979)
2) 418036 (Stroke-Order Code/笔顺码 c. 1997)

So one could write, for example:
"Never Forget 418036"
or
"LHSI Should Never Be Forgotten"

You could also add your own twist, creating a simple "cipher" by adding 1 to each digit:
529
147
And then writing
"529147, Not One Less"

Here are 3 more ways to "write" 六四 (June 4):
3) 33894336 (区位码/GB Code)
4) WHU (太极码/Taiji Code)
5) 4KKLQK (表形码/Shape-Expression Code)
(These Input Methods/输入法 all hail from the 1980s)

To recap thus far, we have

1) lhsi or LHSI (双拼/Double Pinyin")
2) 418036 (笔顺码Stroke-Order Code)
3) 33894336 (区位码/GB Code)
4) whu or WHU (太极码/Taiji Code)
5) 4KKLQK (表形码/Shape-Expression Code)