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Pips #17 (October 12, 2026): the three boards and their solutions

Easy, Medium and Hard from Monday, October 12, 2026. Play them first; each board's answer is folded below. Replays don't affect your streak.

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Pips #17 is day 17 of Puzzlune Pips: three domino boards for Monday, October 12, 2026, Easy with 5 dominoes on a 5×3 grid, Medium with 7 dominoes on a 5×4 grid, Hard with 10 dominoes on a 6×5 grid. Every region on a board carries a rule, shown as a badge: a number means the pips inside add up to it, “=” means every pip is the same, “≠” means all different, and “<” or “>” compare the region's total to a number. Below, each board's regions are listed with what their rule demands, followed by the full placement.

Pips #17 in numbers

Easy5×3 · 5 dominoes · 4 regions
Medium5×4 · 7 dominoes · 5 regions
Hard6×5 · 10 dominoes · 8 regions

Easy: 5×3 board, 5 dominoes, 4 regions

The dominoes are 4–0, 5–5, 3–3, 4–3, 5–3: 35 pips over 10 cells. The 3 sum regions ask for 20 pips across 7 cells, so the remaining 3 cells share the other 15. 1 region needs every pip the same, which only doubles or matching halves of different dominoes can supply. This board accepts 4 valid arrangements; one is shown below.

RegionCellsRule
62adds up to 6 (average 3.0 per cell)
103adds up to 10 (average 3.3 per cell)
=3all pips equal
42adds up to 4 (average 2.0 per cell)
Easy board: the solution

Pip counts per cell; colours mark the regions, the small label is the region's rule.

Domino by domino: 4–0 across row 1, columns 4–5; 5–5 down column 3, rows 1–2; 3–3 across row 2, columns 1–2; 4–3 across row 3, columns 2–3; 5–3 down column 4, rows 2–3.

Medium: 5×4 board, 7 dominoes, 5 regions

The dominoes are 3–3, 3–0, 3–2, 5–4, 1–0, 4–4, 0–0: 32 pips over 14 cells. The 3 sum regions ask for 11 pips across 8 cells, so the remaining 6 cells share the other 21. 1 region needs every pip the same, which only doubles or matching halves of different dominoes can supply. This board accepts 2 valid arrangements; one is shown below.

RegionCellsRule
=4all pips equal
03adds up to 0 (average 0.0 per cell)
103adds up to 10 (average 3.3 per cell)
12adds up to 1 (average 0.5 per cell)
<102total below 10
Medium board: the solution

Pip counts per cell; colours mark the regions, the small label is the region's rule.

Domino by domino: 3–3 down column 5, rows 1–2; 0–3 across row 3, columns 3–4; 2–3 across row 2, columns 3–4; 5–4 across row 1, columns 2–3; 0–1 across row 4, columns 2–3; 4–4 across row 2, columns 1–2; 0–0 across row 3, columns 1–2.

Hard: 6×5 board, 10 dominoes, 8 regions

The dominoes are 4–4, 0–0, 1–6, 2–6, 3–0, 1–1, 2–2, 6–3, 2–3, 6–6: 58 pips over 20 cells. The 5 sum regions ask for 45 pips across 12 cells, so the remaining 8 cells share the other 13. 1 region needs every pip the same, which only doubles or matching halves of different dominoes can supply. This board accepts 4 valid arrangements; one is shown below.

RegionCellsRule
<42total below 4
122adds up to 12 (average 6.0 per cell)
=3all pips equal
63adds up to 6 (average 2.0 per cell)
>83total above 8
133adds up to 13 (average 4.3 per cell)
52adds up to 5 (average 2.5 per cell)
92adds up to 9 (average 4.5 per cell)
Hard board: the solution

Pip counts per cell; colours mark the regions, the small label is the region's rule.

Domino by domino: 4–4 across row 2, columns 1–2; 0–0 across row 4, columns 5–6; 1–6 across row 5, columns 4–5; 2–6 down column 3, rows 4–5; 3–0 down column 4, rows 3–4; 1–1 down column 5, rows 2–3; 2–2 across row 4, columns 1–2; 3–6 across row 3, columns 2–3; 2–3 across row 2, columns 3–4; 6–6 across row 1, columns 3–4.

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