Pips answers for Sunday, September 7, 2025

Hints first, answers last — open only what you need. Puzzles edited by Ian Livengood.

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Easy Pips answer — September 7, 2025

4 dominoes · 1×8 board · by Ian Livengood

Hint 1: where to start

Start with the 0 region at the left: the only way to make it with these dominoes is 0 + 0 + 0.

Hint 2: the pips in each region
  • the 0 region at the left: 0, 0, 0
  • the single-cell 1 region at the center: 1
  • the 2 region at the center: 1, 1
  • the 3 region at the right: 1, 2
Hint 3: step-by-step solution
  1. Row 1, column 1 has only one open neighbor, so its domino must run to row 1, column 2; the 0 region at the left needs a total of exactly 0 — nothing else fits. Place the 0–0 domino horizontally on row 1, column 1 and row 1, column 2.
  2. Row 1, column 3 has only one open neighbor, so its domino must run to row 1, column 4; the 0 region at the left needs a total of exactly 0 (2 of its 3 cells are already filled) — nothing else fits. Place the 0–1 domino horizontally on row 1, column 3 and row 1, column 4.
  3. Row 1, column 5 has only one open neighbor, so its domino must run to row 1, column 6; the 2 region at the center needs a total of exactly 2 — nothing else fits. Place the 1–1 domino horizontally on row 1, column 5 and row 1, column 6.
  4. Row 1, column 7 has only one open neighbor, so its domino must run to row 1, column 8; the 3 region at the right needs a total of exactly 3 — 2 placements fit here for now; this one matches the official answer (this board has more than one valid layout). Place the 1–2 domino horizontally on row 1, column 7 and row 1, column 8.

This board has more than one valid layout; the steps follow the official answer.

Full answer board
0123

Medium Pips answer — September 7, 2025

7 dominoes · 5×4 board · by Rodolfo Kurchan

Hint 1: where to start

Start with the “=” region at the bottom: all 4 cells must show the same number, and only 3s appear on enough dominoes to fill it.

Hint 2: the pips in each region
  • the 10 region at the top: 4, 6
  • the 11 region at the top-right: 5, 6
  • the 10 region at the left: 5, 5
  • the “=” region at the bottom: 3, 3, 3, 3
Hint 3: step-by-step solution
  1. The “=” region at the bottom needs every pip to match — 2 placements fit here for now, but every other one leaves some region impossible a few moves later. Place the 3–3 domino horizontally on row 5, column 2 and row 5, column 3.
  2. Row 5, column 1 has only one open neighbor, so its domino must run to row 4, column 1; the “=” region at the bottom needs every pip to match (2 of its 4 cells are already filled) — 2 placements fit here for now, but every other one leaves some region impossible a few moves later. Place the 3–5 domino vertically on row 4, column 1 and row 5, column 1.
  3. Row 5, column 4 has only one open neighbor, so its domino must run to row 4, column 4; the “=” region at the bottom needs every pip to match (3 of its 4 cells are already filled) — nothing else fits. Place the 3–4 domino vertically on row 4, column 4 and row 5, column 4.
  4. The 10 region at the top needs a total of exactly 10 — 2 placements fit here for now, but every other one leaves some region impossible a few moves later. Place the 5–6 domino horizontally on row 1, column 3 and row 1, column 4.
  5. Row 1, column 2 has only one open neighbor, so its domino must run to row 1, column 1; the 10 region at the top needs a total of exactly 10 (1 of its 2 cells is already filled) — nothing else fits. Place the 0–4 domino horizontally on row 1, column 1 and row 1, column 2.
  6. Row 2, column 4 has only one open neighbor, so its domino must run to row 3, column 4; the 11 region at the top-right needs a total of exactly 11 (1 of its 2 cells is already filled) — nothing else fits. Place the 0–6 domino vertically on row 2, column 4 and row 3, column 4.
  7. Row 3, column 1 has only one open neighbor, so its domino must run to row 2, column 1; the 10 region at the left needs a total of exactly 10 (1 of its 2 cells is already filled) — nothing else fits. Place the 0–5 domino vertically on row 2, column 1 and row 3, column 1.
Full answer board
101110=

Hard Pips answer — September 7, 2025

13 dominoes · 7×9 board · by Rodolfo Kurchan

Hint 1: where to start

Start with the “>15” region at the bottom: the only way to make it with these dominoes is 5 + 5 + 6.

Hint 2: the pips in each region
  • the 10 region at the top-left: 5, 5
  • the “=” region at the top-right: 4, 4, 4
  • the 2 region at the top-left: 1, 1
  • the 6 region at the left: 2, 4
  • the “≠” region at the center: 2, 3, 4, 5
  • the “=” region at the right: 3, 3, 3
  • the “<3” region at the right: 0, 0, 2
  • the “>15” region at the bottom: 5, 5, 6
  • the 0 region at the bottom-right: 0, 0
  • the single-cell 1 region at the bottom: 1
Hint 3: step-by-step solution
  1. Row 7, column 3 has only one open neighbor, so its domino must run to row 7, column 4; the “>15” region at the bottom must total more than 15 — nothing else fits. Place the 5–5 domino horizontally on row 7, column 3 and row 7, column 4.
  2. Row 1, column 9 has only one open neighbor, so its domino must run to row 2, column 9; the “=” region at the top-right needs every pip to match — nothing else fits. Place the 4–4 domino vertically on row 1, column 9 and row 2, column 9.
  3. The “≠” region at the center needs every pip to be different — nothing else fits. Place the 2–6 domino vertically on row 5, column 4 and row 6, column 4.
  4. Row 7, column 6 has only one open neighbor, so its domino must run to row 7, column 7; the single-cell 1 region at the bottom needs a total of exactly 1 — nothing else fits. Place the 0–1 domino horizontally on row 7, column 6 and row 7, column 7.
  5. The “<3” region at the right must total less than 3 — nothing else fits. Place the 0–2 domino vertically on row 5, column 7 and row 6, column 7.
  6. The “=” region at the right needs every pip to match — 2 placements fit here for now, but every other one leaves some region impossible a few moves later. Place the 0–3 domino vertically on row 3, column 7 and row 4, column 7.
  7. Row 3, column 8 has only one open neighbor, so its domino must run to row 3, column 9; the “=” region at the right needs every pip to match (1 of its 3 cells is already filled) — nothing else fits. Place the 3–4 domino horizontally on row 3, column 8 and row 3, column 9.
  8. The “=” region at the right needs every pip to match (2 of its 3 cells are already filled) — nothing else fits. Place the 3–5 domino horizontally on row 3, column 5 and row 3, column 6.
  9. The “≠” region at the center needs every pip to be different (2 of its 4 cells are already filled) — nothing else fits. Place the 0–4 domino horizontally on row 4, column 5 and row 4, column 6.
  10. Row 4, column 4 has only one open neighbor, so its domino must run to row 3, column 4; the “≠” region at the center needs every pip to be different (3 of its 4 cells are already filled) — 3 placements fit here for now, but every other one leaves some region impossible a few moves later. Place the 2–3 domino vertically on row 3, column 4 and row 4, column 4.
  11. The 2 region at the top-left needs a total of exactly 2 — nothing else fits. Place the 1–4 domino vertically on row 2, column 3 and row 3, column 3.
  12. The 10 region at the top-left needs a total of exactly 10 — nothing else fits. Place the 1–5 domino vertically on row 1, column 2 and row 2, column 2.
  13. Row 1, column 1 has only one open neighbor, so its domino must run to row 2, column 1; the 10 region at the top-left needs a total of exactly 10 (1 of its 2 cells is already filled) — nothing else fits. Place the 2–5 domino vertically on row 1, column 1 and row 2, column 1.
Full answer board
10=26≠=<3>1501