- Add a (analytical) remark
- How do I add a variation applet (NL)?
- Embed Youtube-film
- Rules for comments
 | 17-11-2021 MF Ronald Schalley: |
70. ... 15-20
71. 24x15 25-30
72. 34x25 =
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| PDN Diagram 1 | |||||
|
70. ... 15-20
71. 24x15 25-30
72. 34x25 =
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