- Add a (analytical) remark
- How do I add a variation applet (NL)?
- Embed Youtube-film
- Rules for comments
 | 30-10-2020 Ad de Hoon: |
50. 43-39
 | 29-10-2020 Eddie van de Acker: |
50. 43-38? [43-39 =]
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| PDN Diagram 1 | |||||
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50. 43-39
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50. 43-38? [43-39 =] | |||||