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World Sudoku & Puzzle Championship 2026
ISC & SM and IPC & PR 2026
Round 15 : Chakravyuha9 posts • Page 1 of 1 • 1
@ 2026-09-23 12:00 AM (#41825) (#41825) Top

Administrator



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Administrator posted @ 2026-09-23 12:00 AM

Questions related to Round 15 : Chakravyuha should be posted here.
@ 2026-09-24 6:20 PM (#41849 - in reply to #41825) (#41849) Top

Kota



Posts: 37
20
Country : Japan

Kota posted @ 2026-09-24 6:20 PM

Can arrows in variant sudokus point toward other grids(other variant sudokus or Shifted Sudoku)?
@ 2026-09-24 6:48 PM (#41851 - in reply to #41849) (#41851) Top

Hemant Kr Malani



Posts: 167
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Country : India

Hemant Kr Malani posted @ 2026-09-24 6:48 PM

Kota - 2026-09-24 6:20 PM

Can arrows in variant sudokus point toward other grids(other variant sudokus or Shifted Sudoku)?
No, they can't.
@ 2026-09-30 12:41 AM (#41975 - in reply to #41825) (#41975) Top

CJK



Posts: 13

Country : Germany

CJK posted @ 2026-09-30 12:41 AM

Could it be that the shifted sudoku has multiple solutions? I can align the three layers like a classic sudoku and get the following, which has multiple solutions:
.5. ..9 ..2
... 65. ...
..4 .28 3..
.3. .6. ..7
..6 ... ...
5.. 8.2 ...
... .34 5.9
... ... 12.
8.2 ..1 ...

@ 2026-10-01 1:01 AM (#41982 - in reply to #41975) (#41982) Top

Hemant Kr Malani



Posts: 167
100202020
Country : India

Hemant Kr Malani posted @ 2026-10-01 1:01 AM

CJK - 2026-09-30 12:41 AM

Could it be that the shifted sudoku has multiple solutions? I can align the three layers like a classic sudoku and get the following, which has multiple solutions:
.5. ..9 ..2
... 65. ...
..4 .28 3..
.3. .6. ..7
..6 ... ...
5.. 8.2 ...
... .34 5.9
... ... 12.
8.2 ..1 ...

There will only be a single solution which is part of the overall solution.
@ 2026-10-01 11:36 PM (#41994 - in reply to #41825) (#41994) Top

CJK



Posts: 13

Country : Germany

CJK posted @ 2026-10-01 11:36 PM

What I meant was that the example puzzle given for the shifted sudoku has multiple solutions
@ 2026-10-02 5:48 PM (#42007 - in reply to #41994) (#42007) Top

Hemant Kr Malani



Posts: 167
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Country : India

Hemant Kr Malani posted @ 2026-10-02 5:48 PM

CJK - 2026-10-01 11:36 PM

What I meant was that the example puzzle given for the shifted sudoku has multiple solutions
Yes, the example puzzle given has multiple solutions. Thanks for pointing out.
@ 2026-10-03 5:48 PM (#42018 - in reply to #41825) (#42018) Top

hpoddar08



Posts: 1

Country : India

hpoddar08 posted @ 2026-10-03 5:48 PM

Can the variants with black arrows marked in examples, be marked as grey arrows or vice versa?
@ 2026-10-04 8:31 PM (#42025 - in reply to #41825) (#42025) Top

lemononmars





Country : Thailand

lemononmars posted @ 2026-10-04 8:31 PM

Can Point to Next and Search 9 have more than one arrow in the same cell? While these variants always have one arrow per cell and the examples happen to follow such convention, the rules don't explicitly prohibit multiple arrows.

Edited by lemononmars 2026-10-04 8:33 PM
Round 15 : Chakravyuha9 posts • Page 1 of 1 • 1
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