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✏️ Pencil Puzzles

Pencil puzzle-solving (excluding sudoku) videos from CTC.

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

3 rows where Constraints contains "Sums" and Setter contains "Michael Lefkowitz" sorted by Id descending

Type 1

  • Latin Square · 3

Solver 2

  • Simon · 2
  • Mark · 1

Setter 1

  • Michael Lefkowitz · 3 ✖

Constraints 9

  • Sums · 3 ✖
  • 5x5 · 1
  • Count · 1
  • Counting Sets · 1
  • Gattai · 1
  • Inequality · 1
  • Loop · 1
  • Non-Repeat · 1
  • O/E · 1
Id ▲ Puzzle Title Date Solver Type Setter Constraints Video Video Length Video Length (Minutes)
8166 Area 51 2026-02-13 Simon Latin Square Michael Lefkowitz 5x5, Counting Sets, Loop, Sums
The Puzzle Of Area 51
The Puzzle Of Area 51
00:20:26 21 min
8117 Inset 2026-02-02 Mark Latin Square Michael Lefkowitz Gattai, O/E, Sums
Think it Through!
Think it Through!
00:26:43 27 min
7285 The Wall 2025-06-10 Simon Latin Square Michael Lefkowitz Count, Inequality, Non-Repeat, Sums
The Wall: A Pink Floyd Sudoku Tribute
The Wall: A Pink Floyd Sudoku Tribute
02:01:48 122 min

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Last updated (UTC): 2026-02-20 05:06:17