Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Notation
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


b. 165-166

composition: (Op. 4), Sonata in C minor, Mvt IV

2 slurs to d2 in A, contextual interpretation

Slur to c2 in GE (→FE,EE,IE)

..

The top two-bar A slur reaches the 2nd crotchet in bar 166, which is almost certainly inaccurate – cf. the slurs between bars 169-170. The shorter GE slur (→FE,EE,IE) is an example of adjusting a mark to quaver beams.
The easiest explanation for the absence of the short c2-d2 slur in the editions would be an oversight, although the fact that all similar slurs were omitted in this fragment may point to a conscious strategy by the engraver of GE, which was supposed to make his work easier.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 165

composition: (Op. 4), Sonata in C minor, Mvt IV

..

In A there are no naturals to the 4th, 6th and 8th L.H. quavers – Be1A. The accidentals were added in GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A

b. 166-167

composition: (Op. 4), Sonata in C minor, Mvt IV

Slur in A, contextual interpretation

No slur in GE (→FE,EE,IE)

..

In A, at the end of bar 166, the last one in the line, the slur in the R.H. top voice is missing. However, at the beginning of bar 167 we can see the ending of a slur from the preceding bar. We assume that we are dealing with a slur whose range is analogous to the one in bars 170-171. In GE (→FE,EE,IE) this slur was not included.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccurate slurs in A , Errors in GE , Uncertain slur continuation

b. 168-170

composition: (Op. 4), Sonata in C minor, Mvt IV

2 slurs to e2 in A

Slur to d2 in GE (→IE)

No slurs in FE & EE

..

As was the case 4 bars earlier, the shorter top slur in GE (→IE) is probably a revision, while the omission thereof – mistakes by FE and EE. On the other hand, such a double oversight in unrelated sources seems highly unlikely. Therefore, it is possible that the slur was added to GE1 after the remaining editions had been prepared (see bar 225), while its presence in IE resulted from an independent revision, introduced by analogy with bars 164-165.

The omission of the d2-e2 slur in bars 169-170 in all editions is almost certainly an oversight – in A the slur is poorly visible.

category imprint: Differences between sources

issues: Errors in FE , Errors in EE , Errors in GE , GE revisions , Errors in IE

b. 168-169

composition: (Op. 4), Sonata in C minor, Mvt IV

..

In A the naturals to the 2nd and 4th L.H. quavers in bar 168 and to the last quaver in bar 169 are missing – ea1B. The accidentals were added in GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A