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Sudoku puzzle-solving videos from CTC.

Data source: Cracking the Cryptic Catalogue · About: View on GitHub

3 rows where Constraints contains "Extra Regions" and Setter contains "James Sinclair" sorted by Id descending

Solver 2

  • Mark · 2
  • Simon · 1

Setter 1

  • James Sinclair · 3 ✖

Constraints 13

  • Arrow · 3
  • Extra Regions · 3 ✖
  • German Whispers · 2
  • Killer · 2
  • Consecutive · 1
  • Doublers · 1
  • Halvers · 1
  • O/E · 1
  • Ratio · 1
  • Region Sum Lines · 1
  • Renban · 1
  • Thermo · 1
  • XV · 1
Id â–² Puzzle Title Date Solver Setter Constraints Video Video Length Video Length (Minutes)
8057 Underling 2026-01-16 Simon James Sinclair Arrow, Consecutive, Extra Regions, German Whispers, O/E
What An EXTRAORDINARY Sudoku
What An EXTRAORDINARY Sudoku
00:59:54 60 min
7869 Halfway There 2025-11-25 Mark James Sinclair Arrow, Extra Regions, Halvers, Killer, Thermo, XV
Whoa-oh - We're Halfway There
Whoa-oh - We're Halfway There
00:30:39 31 min
7749 Double Entendre 2025-10-22 Mark James Sinclair Arrow, Doublers, Extra Regions, German Whispers, Killer, Ratio, Region Sum Lines, Renban
But ... These Lines Are Impossible!
But ... These Lines Are Impossible!
00:38:42 39 min

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Last updated (UTC): 2026-01-21 04:32:53