Chess NAGs

While I was writing last week's post, Informant No.1, Game No.1, I included an awkward explanation:-

A '?' on Black's 9th leads to a plus-over-minus on White's 10th, which is awarded a '!'. A couple of White's subsequent moves are also awarded a '!', after which Black is lost.

Certain that there must be a better way to use the 'plus-over-minus' notation, I discovered Wikipedia's page Numeric Annotation Glyphs, which equates various chess notation symbols to Unicode. Here's a table of the relevant symbols and codes.

‼	8252	'‼' vs. '!!'
⁇	8263	'⁇' vs. '??'
⁉	8265	'⁉' vs. '!?'
⁈	8264	'⁈' vs. '?!'
□	9633	Wikipedia shows '9632' (which is ■)
∞	8734	See also Unclear Positions (and follow ups)
⩲	10866
⩱	10865
±	177
∓	8723
⨀	10752
⟳	10227
→	8594
↑	8593
∆	8710
⌓	8979
⇔	8660
⇗	8663
⟫	10219
⟪	10218
✕	10005
⊥	8869

Now here's the same awkward explanation using Unicode:-

A '?' on Black's 9th leads to a '±' on White's 10th, which is awarded a '!'. A couple of White's subsequent moves are also awarded a '!', after which Black is lost.

Looks good, but more trials necessary... Thanks, Wikipedia!