Pips answers for Saturday, September 13, 2025

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

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Easy Pips answer — September 13, 2025

4 dominoes · 4×4 board · by Heidi Erwin

Hint 1: where to start

Start with the 6 region at the center: the only way to make it with these dominoes is 0 + 2 + 2 + 2.

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

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

Full answer board
=6<3

Medium Pips answer — September 13, 2025

6 dominoes · 4×5 board · by Heidi Erwin

Hint 1: where to start

Start with the “=” region at the top-left: all 3 cells must show the same number, and only 2 or 3 appear on enough dominoes to fill it.

Hint 2: the pips in each region
  • the “=” region at the top-left: 2, 2, 2
  • the single-cell “>4” region at the top-right: 6
  • the 12 region at the center: 3, 4, 5
  • the single-cell “>2” region at the left: 3
  • the 8 region at the bottom: 2, 6
  • the single-cell “<3” region at the bottom-right: 1
  • the single-cell 3 region at the bottom-right: 3
Hint 3: step-by-step solution
  1. The single-cell “<3” region at the bottom-right must total less than 3 — nothing else fits. Place the 1–3 domino horizontally on row 4, column 4 and row 4, column 5.
  2. Row 1, column 1 has only one open neighbor, so its domino must run to row 1, column 2; the “=” region at the top-left needs every pip to match — 2 placements fit here for now; this one matches the official answer (this board has more than one valid layout). Place the 2–2 domino horizontally on row 1, column 1 and row 1, column 2.
  3. The “=” region at the top-left needs every pip to match (2 of its 3 cells are already filled) — 4 placements fit here for now; this one matches the official answer (this board has more than one valid layout). Place the 2–5 domino vertically on row 1, column 3 and row 2, column 3.
  4. Row 2, column 4 has only one open neighbor, so its domino must run to row 1, column 4; the 12 region at the center needs a total of exactly 12 (1 of its 3 cells is already filled) — 2 placements fit here for now; this one matches the official answer (this board has more than one valid layout). Place the 4–6 domino vertically on row 1, column 4 and row 2, column 4.
  5. The 12 region at the center needs a total of exactly 12 (2 of its 3 cells are already filled) — 2 placements fit here for now; this one matches the official answer (this board has more than one valid layout). Place the 3–3 domino horizontally on row 3, column 2 and row 3, column 3.
  6. Row 4, column 2 has only one open neighbor, so its domino must run to row 4, column 3; the 8 region at the bottom needs a total of exactly 8 — 2 placements fit here for now; this one matches the official answer (this board has more than one valid layout). Place the 2–6 domino horizontally on row 4, column 2 and row 4, column 3.

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

Full answer board
=>412>28<33

Hard Pips answer — September 13, 2025

16 dominoes · 7×9 board · by Rodolfo Kurchan

Hint 1: where to start

Start with the “=” region at the center: all 6 cells must show the same number, and only 3s appear on enough dominoes to fill it.

Hint 2: the pips in each region
  • the 11 region at the top-left: 5, 6
  • the 2 region at the top: 1, 1
  • the 9 region at the top: 4, 5
  • the “=” region at the center: 3, 3, 3, 3, 3, 3
  • the 2 region at the right: 1, 1
  • the single-cell 5 region at the right: 5
  • the “=” region at the bottom-left: 2, 2, 2, 2, 2
  • the 0 region at the right: 0, 0
  • the single-cell 1 region at the bottom-left: 1
  • the single-cell 5 region at the bottom: 5
  • the 18 region at the bottom: 6, 6, 6
  • the single-cell 5 region at the bottom-right: 5
  • the single-cell 0 region at the bottom-left: 0
Hint 3: step-by-step solution
  1. The 0 region at the right needs a total of exactly 0 — nothing else fits. Place the 0–1 domino horizontally on row 5, column 7 and row 5, column 8.
  2. Row 4, column 8 has only one open neighbor, so its domino must run to row 4, column 9; the 2 region at the right needs a total of exactly 2 (1 of its 2 cells is already filled) — nothing else fits. Place the 1–5 domino horizontally on row 4, column 8 and row 4, column 9.
  3. The 18 region at the bottom needs a total of exactly 18 — nothing else fits. Place the 5–6 domino horizontally on row 6, column 6 and row 6, column 7.
  4. The 18 region at the bottom needs a total of exactly 18 (1 of its 3 cells is already filled) — nothing else fits. Place the 6–6 domino horizontally on row 7, column 5 and row 7, column 6.
  5. The “=” region at the center 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 horizontally on row 5, column 5 and row 5, column 6.
  6. The single-cell 0 region at the bottom-left needs a total of exactly 0 — nothing else fits. Place the 0–4 domino horizontally on row 7, column 3 and row 7, column 4.
  7. The “=” region at the center needs every pip to match (1 of its 6 cells is already filled) — 2 placements fit here for now, but every other one leaves some region impossible a few moves later. Place the 3–3 domino vertically on row 3, column 4 and row 4, column 4.
  8. Row 5, column 1 has only one open neighbor, so its domino must run to row 5, column 2; the “=” region at the bottom-left needs every pip to match — nothing else fits. Place the 2–2 domino horizontally on row 5, column 1 and row 5, column 2.
  9. The “=” region at the bottom-left needs every pip to match (2 of its 5 cells are already filled) — nothing else fits. Place the 2–3 domino horizontally on row 5, column 3 and row 5, column 4.
  10. Row 6, column 2 has only one open neighbor, so its domino must run to row 6, column 3; the single-cell 1 region at the bottom-left needs a total of exactly 1 — nothing else fits. Place the 1–2 domino horizontally on row 6, column 2 and row 6, column 3.
  11. Row 6, column 4 has only one open neighbor, so its domino must run to row 6, column 5; the “=” region at the bottom-left needs every pip to match (4 of its 5 cells are already filled) — nothing else fits. Place the 2–5 domino horizontally on row 6, column 4 and row 6, column 5.
  12. The 2 region at the top needs a total of exactly 2 — nothing else fits. Place the 1–6 domino horizontally on row 1, column 3 and row 1, column 4.
  13. The 2 region at the top needs a total of exactly 2 (1 of its 2 cells is already filled) — nothing else fits. Place the 1–4 domino horizontally on row 1, column 5 and row 1, column 6.
  14. The “=” region at the center needs every pip to match (4 of its 6 cells are already filled) — nothing else fits. Place the 3–5 domino horizontally on row 2, column 5 and row 2, column 6.
  15. Row 1, column 2 has only one open neighbor, so its domino must run to row 2, column 2; the 11 region at the top-left needs a total of exactly 11 (1 of its 2 cells is already filled) — nothing else fits. Place the 4–5 domino vertically on row 1, column 2 and row 2, column 2.
  16. Row 2, column 4 has only one open neighbor, so its domino must run to row 2, column 3; the “=” region at the center needs every pip to match (5 of its 6 cells are already filled) — nothing else fits. Place the 3–4 domino horizontally on row 2, column 3 and row 2, column 4.
Full answer board
1129=25=0151850