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 29-07-2020 Herman Spanjer:
heart
@ Sergey; You could consider one extra move. 1. 33-28 09-13*
 29-07-2020 Sergey Bazanov:
Yes, thank you, Herman! I didn't seesmiley
 
 29-07-2020 Herman Spanjer:
Your welcome Sergey. I like your composition a lot for obvious reasons. Everything 'fits' I never even considered this elegant mechanism.  
 29-07-2020 Sergey Bazanov:
I know only somethigs like that:
https://toernooibase.kndb.nl/posities/opvraag/applet.php?taal=1&idapplet=65704 
 
 06-12-2021 Sergej Yushkevitch:
F.Hermelink has prototype: https://toernooibase.kndb.nl/posities/opvraag/applet.php?taal=&idapplet=10475