Pips November 1, 2026: Hints & Answers

Constructed by Ian Livengood, Rodolfo Kurchan, Rodolfo Kurchan, edited by Ian Livengood.

Recap

The easy board requires strategic sum placement. The medium board needs careful comparison. The hard board demands systematic approach to many small sums and comparisons.

The three boards that day

The tray and each region's rule — board data, no solutions.

Easy board · 5 dominoes · 6 regions

Dominoes: 4–36–55–41–55–5

  • 2 ×two cells: exactly 10.
  • three cells: exactly 10.
  • 2 ×one cell: exactly 4.
  • one cell: more than 4.

Small number of dominoes and regions makes it manageable.

Medium board · 7 dominoes · 8 regions

Dominoes: 1–34–56–60–33–34–62–6

  • 3 ×one cell: left uncovered.
  • two cells: under 6.
  • one cell: more than 2.
  • four cells: all matching.
  • one cell: exactly 0.
  • three cells: all different.

Variety of constraints requires careful planning.

Hard board · 16 dominoes · 31 regions

Dominoes: 0–10–20–30–40–51–21–31–41–52–32–42–53–43–54–53–6

  • 5 ×one cell: left uncovered.
  • 5 ×one cell: exactly 2.
  • 6 ×one cell: exactly 3.
  • 3 ×one cell: exactly 4.
  • 5 ×one cell: exactly 0.
  • two cells: exactly 8.
  • 5 ×one cell: exactly 5.
  • one cell: exactly 1.

Large number of dominoes and regions with varied constraints.

Pips hints, one rung at a time

Six rungs, easy board first. The recap above already named the walkthroughs, so this ladder is here for anyone replaying the boards fresh rather than as a spoiler shield.

  1. Hint 1: How the three boards compared

    Sizes and constraint mixes, counted off the boards.

    Easy board
    5 dominoes, 6 regions (5 sum, 1 greater)
    Medium board
    7 dominoes, 8 regions (3 empty, 1 equals, 1 greater, 1 less, 1 sum, 1 unequal)
    Hard board
    16 dominoes, 31 regions (26 sum, 5 empty)
  2. Hint 2: Easy board: how to approach it

    Method only.

    Start by identifying regions with unique constraints, focusing on sums.

  3. Hint 3: Easy board: where to start

    One region named by its constraint.

    Region with sum 10 over 2 cells, look for domino pairs that fit.

  4. Hint 4: Medium board: approach and first region

    The same two steps, one difficulty up.

    Look for regions with fixed values or easy comparisons first.

    Empty cell region, try to place a domino that doesn't limit options.

  5. Hint 5: Hard board: how to approach it

    Where the hard board differed in kind, not just size.

    Begin with regions having specific small sums or comparisons.

  6. Hint 6: Hard board: where to start

    The last rung before the full walkthroughs.

    Region with sum 0 over 1 cell, easy placement.

Every Pips walkthrough from that day

All three walkthroughs, folded: each one places every domino on its board, one after another.

  • Easy board · 5 dominoes

    Easy board walkthrough

    Place 5/5 in sum 10 over 2 cells region. Then, fit 4/3 and 6/5 in sum 10 over 2 cells and 5/4 in sum 10 over 3 cells. Place 1/5 in sum 4 over 1 cell region. Last, adjust to meet greater 4 over 1 cell.

  • Medium board · 7 dominoes

    Medium board walkthrough

    Start with empty cell regions. Place 0/3, then 3/3. Use equals over 4 cells to place 4/6 and 2/6. Adjust with less 6 over 2 cells and greater 2 over 1 cell.

  • Hard board · 16 dominoes

    Hard board walkthrough

    Start with sum 0 over 1 cell regions, placing 0/0, 0/1, 0/2, 0/3, 0/4, 0/5. Then, use sum 1 over 1 cell for 1/0. Continue with small sums: sum 2 over 1 cell for 1/1, 2/0; sum 3 over 1 cell for 1/2, 2/1, 3/0. Progress with sum 4 over 1 cell and sum 5 over 1 cell regions, placing 2/2, 3/1, 4/0 and 2/3, 3/2, 4/1, 5/0 respectively. Adjust with comparison constraints.

Those boards by the numbers

Date
Sunday, November 1, 2026
Boards
3 — easy, medium, hard
Dominoes in play
28 across the three boards
Easy board
5 dominoes · 6 regions
Medium board
7 dominoes · 8 regions
Hard board
16 dominoes · 31 regions

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