Logic Masters Deutschland e.V.

1, 22, 117, ?, ?, ?, 1399999, 88888888, 999999999 and its Twin

(Published on 4. September 2020, 14:30 by SudokuExplorer)

We have a sequence of integers of length 9 with its 4th, 5th and 6th terms missing:

1, 22, 117, ?, ?, ?, 1399999, 88888888, 999999999

All is not lost, as we also have its twin sequence of length 9 with its 4th, 5th and 6th terms also missing:

1, 40, 711, ?, ? , ?, 9999931, 88888888, 999999999

These twin sequences have very similar rules (they are twins but are not identical :-)).
Discover their rules and work out their missing terms.

Hint: One of the twins is older than the other one ;-)

Solution code: Enter the 4th, 5th and 6th terms of the first sequence, followed by the 4th, 5th and 6th terms of the second sequence. (Note that commas and spaces are removed during submission process).

Last changed on on 31. July 2021, 20:39

Solved by dm_litv, Nylimb, SKORP17, rimodech, Nothere, cici0729, Schachus, Swood, TimE, Bobby, Storm, AsilG, Vebby, CJK
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Comments

on 31. July 2021, 20:39 by SudokuExplorer
Fixed tags

on 16. September 2020, 21:15 by SudokuExplorer
Added a hint when you're stuck

on 10. September 2020, 00:48 by SudokuExplorer
Increased difficulty to three stars, due to number of solvers (but I hope the revised puzzle helps you work out the missing terms)

on 10. September 2020, 00:45 by SudokuExplorer
I've changed the puzzle to a pair of sequences.
Thanks SKORP17 for the feedback :-)

Last changed on 9. September 2020, 15:59

on 9. September 2020, 15:29 by SudokuExplorer
Adjusted hint and have given a strategy to solve this sequence puzzle.
Thanks for all the feedback :-)

on 8. September 2020, 14:19 by SudokuExplorer
Added a second sequence which has similar rules.

on 6. September 2020, 15:15 by SKORP17
@peterchayward : das ging mir genauso, bis mir die 22 den Weg wies

on 6. September 2020, 13:50 by SudokuExplorer
@peterchayward As the spoiler mentions, you might have more properties than are necessary. Maybe remove a potential property, and see if you still define a sequence which contains the given terms.

on 6. September 2020, 09:15 by peterchayward
I had a solution, but the (SPOILER) possibility of 0 being in the solution meant that it didn't work.

on 6. September 2020, 00:12 by SudokuExplorer
Added hint to help clarify any possible difficulties that may arise when trying this puzzle.

on 6. September 2020, 00:05 by SudokuExplorer
@Nylimb Thanks for giving it a go, and your feedback. I'll add that hint to puzzle.

on 6. September 2020, 00:01 by Nylimb
Thanks to a hint from SudokuExplorer, I figured out the sequence. I probably wouldn't have without the hint.

Last changed on 5. September 2020, 23:38

on 5. September 2020, 23:26 by SudokuExplorer
@Nylimb Do you have exactly three rules/properties? It might be the case that you have more rules/properties than are necessary? No punctuation is needed. Maybe write a hidden comment and I'll delete it later.

on 5. September 2020, 23:22 by Nylimb
@SudokuExplorer: I've found a rule that matches the given terms, but my solution code is rejected. So either I have a different rule than you intended, or I'm entering the code wrong. Is some sort of punctuation required between the terms?

Difficulty:2
Rating:88 %
Solved:14 times
Observed:3 times
ID:000489

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