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November 15, 2025

1996 - 9991

Example of possible permutations

1996
1999
6166
6169
6196
6199
6616
6619
6691
6916
6919
6961
6991
9166
9169
9196
9199
9616
9619
9661
9691
9916
9919
9961
9991

Snippet of py code

import itertools

a = list("1996")
b = []

for i in itertools.permutations(a):

    ii = "".join(i)

    if 1996 > int(ii):
        continue

    if "6"*3 in ii:
      continue

    if ii in b:
        continue
    b.append(ii)
print("\n".join(sorted(b)))
print(len(b))
#beta version
#beginner friendly
#does not follows all given rules
#18.11.2025 by Skeleton3Skeletor33


14 comments:

Anonymous said...

unfinished list instructions

Anonymous said...

instructtions
1. 4 digits long
2. lowest starting year limit
3. no 3 sixes in a row
4. ascending years
5. 9 can turn to 6
6. up to max permutations of given four digits

Anonymous said...

count possible permutations

Anonymous said...

no upside down allowed

Anonymous said...

is that all?

Anonymous said...

9691 missing. it migth be a good exercise for beginners.

Anonymous said...

it very confusing game

Anonymous said...

maybe not with enough practice?

Anonymous said...

i acan decide black flag

Anonymous said...

permutations must consists of given 4 digits, all digits that don't mutate with exception that if it's 3 sixes in a row cannot appear you also shouldn't rotate horizontally mobile phone and 6 = 9 and 9 = 6...ugh is that explainex very well...the game can be even harder with more symbols or digits or signs or marks...

Anonymous said...

characters

M. Slon said...

i am blown away with this...i am trying to figure this for 3 days

Anonymous said...

just finish the code with simplest instruction codes.

Anonymous said...

dl you codes from sm

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