- Add a (analytical) remark
- How do I add a variation applet (NL)?
- Embed Youtube-film
- Rules for comments
 | 09-12-2017 Henk de Lange: |
59. 42-37 32x41
60. 21x23 41-46
61. 23-18
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| PDN Diagram 1 | |||||
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59. 42-37 32x41
60. 21x23 41-46
61. 23-18
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