- Add a (analytical) remark
- How do I add a variation applet (NL)?
- Embed Youtube-film
- Rules for comments
 | 16-01-2020 MF Ronald Schalley: |
52. ... 18-23 53. 28-22 23-28 54. 22x33 19-23=
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| PDN Diagram 1 | |||||
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52. ... 18-23 53. 28-22 23-28 54. 22x33 19-23=
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