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2022-01-12 14:50 nesdori  
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i can see 4 solutions; there are two main variations. one of the main variations has two sub-variations and one of the sub-variations has two sub-sub-variations. i made demos of all of them :)

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2022-01-13 20:59 dustin  
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 nesdori , i was aware of the main variation including the sub- and sub-sub-variations, but not of the second main variation. i'm trying to find it :d

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2022-01-13 21:07 dustin  
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got it! :d

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2022-01-17 18:39 dustin  
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intended solution free! ^ snaps a diamond right before the butterfly gets crushed, so that he has already 3\\\ when the butterfly gets hit.  
  
 nesdori , i'm curious whether we talk about the same main, sub and sub-sub variations :d

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2022-01-17 19:02 nesdori  
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 dustin , well my variations free :)

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2022-01-17 22:29 dustin  
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 nesdori , there are indeed differences! i missed the possibility to crush the bf at the right side. here are what i thought were three of your solutions (i forgot what i considered to be the fourth :d)