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2019-03-15 18:27 Arno  
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it is possible... all 181 diamonds...! :-D

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2019-03-16 16:46 Arno  
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solution is visible!  
  
all fireflies and boulders destroyed! :-)

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2019-03-16 19:41 fellner adrian  
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LIKE! :D  
  
ok, this was half an accident that you found out, or you calculated it? :)

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2019-03-16 20:27 Arno  
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thanks! :-)   
i just tried out many ways until i found one lucrative.  
by the way, my latest cave (852) has more "calculation" in it! ;-)