Pips #18 Solutions (October 13, 2026): Easy, Medium and Hard Answers

Pips #18 is day 18 of Puzzlune Pips: three domino boards for Tuesday, October 13, 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 #18 in numbers

Easy	5×3 · 5 dominoes · 3 regions
Medium	5×4 · 7 dominoes · 5 regions
Hard	6×5 · 10 dominoes · 8 regions

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

The dominoes are 0–0, 0–5, 6–6, 4–4, 5–4: 34 pips over 10 cells. The 2 sum regions ask for 22 pips across 7 cells, so the remaining 3 cells share the other 12. 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.

Region	Cells	Rule
17	4	adds up to 17 (average 4.3 per cell)
5	3	adds up to 5 (average 1.7 per cell)
=	3	all pips equal

Easy board: the solution

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

05175005644=64

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

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

The dominoes are 2–2, 5–5, 1–4, 3–5, 6–1, 6–4, 5–4: 53 pips over 14 cells. The 3 sum regions ask for 29 pips across 8 cells, so the remaining 6 cells share the other 24. 1 region needs every pip the same, which only doubles or matching halves of different dominoes can supply. 1 region needs all pips different. This board accepts 2 valid arrangements; one is shown below.

Region	Cells	Rule
9	3	adds up to 9 (average 3.0 per cell)
=	3	all pips equal
6	2	adds up to 6 (average 3.0 per cell)
≠	3	all pips different
14	3	adds up to 14 (average 4.7 per cell)

Medium board: the solution

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

516293145≠4=52564461

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

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

The dominoes are 3–3, 1–1, 5–3, 3–4, 2–2, 0–0, 4–4, 6–5, 2–0, 6–6: 60 pips over 20 cells. The 6 sum regions ask for 49 pips across 15 cells, so the remaining 5 cells share the other 11. 1 region needs every pip the same, which only doubles or matching halves of different dominoes can supply. This board accepts 8 valid arrangements; one is shown below.

Region	Cells	Rule
4	3	adds up to 4 (average 1.3 per cell)
>7	3	total above 7
9	3	adds up to 9 (average 3.0 per cell)
7	2	adds up to 7 (average 3.5 per cell)
8	3	adds up to 8 (average 2.7 per cell)
11	2	adds up to 11 (average 5.5 per cell)
=	2	all pips equal
10	2	adds up to 10 (average 5.0 per cell)

Hard board: the solution

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

2>7257641034208445611601=339013

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

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Pips #18 (October 13, 2026): the three boards and their solutions

Pips #18 in numbers

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

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

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

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