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 Very well done! Yes, there 10 4 letter words and 2 three letter words:) What I have provided are the first 4 or 3 letters of each word. 
 OH! It is 10 4's and 2 3's? My short list just got WAYYYY shorter to 139 words. 
 If there are 10, 4 letter words and 2, 3 letter words. How come the last 12 word is mother???

What I'm not understanding here?  
 They are truncated, you only need the first 4 letters of BIP-39 seed words:) 
 Oh that's right 💡 
 Hmm... But still, if I extracted  all the words which have these specified characters as their first 3-4 characters I get 602 words which gives me 3 nonillion combinations (3*10^30) even if we have a clue word for the last word.

I call this #uncypherable with a decent home computer

I wander how others get to such lower number of words? 
 
 It was here :) nostr:nevent1qqstzxutfyjylvkaukgwuyt4kl8ht3m2z2x8czq2uw7aen662zu45sqpr9mhxue69uhhyetvv9ujumn0wd68yct5dyhxxmmd9upzpknx6csaqkah5ltycxklur4xggw20kmq6yyfekvtqmx0e5829mtcqvzqqqqqqykra5nw 
 Ah yes sorry I could have worded that better, although I did say first 4 in second sentence https://i.nostr.build/roZe2.jpg  
 No worries at all! I see what you mean now. Thanks for clarifying and providing the link. Much appreciated! 😊👍 
 My original words are about a method: 
1. among the 2048 words in BIP-39, cut the first 4 letters out first
2. delete all the words containing these 10 letters, leaving only about 600 candidate words.
3. to uniquely express 12 seed words, each taking the first 4 letters requires 48 letters. Only 46 are given here, so there are 2 words that are 3 letters long, and there are 10 words are 4 letters in length.
4.  run a letter counting program for random combinations of 12 words on the compiled 600-length word list

It's hard to understand from these words that all seed words longer than 4 letters are excluded, right? 
 Ah yes sorry I could have worded that better, although I did say first 4 in second sentence https://i.nostr.build/roZe2.jpg  
 No worries at all! I see what you mean now. Thanks for clarifying and providing the link. Much appreciated! 😊👍 
 No worries at all! I see what you mean now. Thanks for clarifying and providing the link. Much appreciated! 😊👍 
 My original words are about a method: 
1. among the 2048 words in BIP-39, cut the first 4 letters out first
2. delete all the words containing these 10 letters, leaving only about 600 candidate words.
3. to uniquely express 12 seed words, each taking the first 4 letters requires 48 letters. Only 46 are given here, so there are 2 words that are 3 letters long, and there are 10 words are 4 letters in length.
4.  run a letter counting program for random combinations of 12 words on the compiled 600-length word list

It's hard to understand from these words that all seed words longer than 4 letters are excluded, right?