Pips : October 18, 2026

1. R1: sum 5 · r1c3, r2c2, r2c3, r3c1, r3c2
2. R2: greater 3 · r1c4
3. R3: sum 5 · r2c1
4. R4: sum 9 · r3c3, r4c3
5. R5: empty · r4c4

sum = target total; equals = same value; unequal = all different values; less = total below target; greater = total above target; empty = no constraint. D labels identify dominoes; R labels identify regions.

Rows and columns below start at 1, from the top left.

1. 6–1: row 3, column 3 → row 2, column 3
2. 4–3: row 4, column 4 → row 4, column 3
3. 1–5: row 2, column 2 → row 2, column 1
4. 1–1: row 3, column 1 → row 3, column 2
5. 4–1: row 1, column 4 → row 1, column 3

1. R1: greater 7 · r1c1, r2c1
2. R2: sum 4 · r1c2
3. R3: unequal · r2c2, r2c3, r3c2, r4c2
4. R4: equals · r2c4, r3c3, r3c4
5. R5: less 2 · r2c5
6. R6: sum 10 · r2c6, r3c6
7. R7: less 5 · r3c5

sum = target total; equals = same value; unequal = all different values; less = total below target; greater = total above target; empty = no constraint. D labels identify dominoes; R labels identify regions.

Rows and columns below start at 1, from the top left.

1. 6–3: row 4, column 2 → row 3, column 2
2. 4–2: row 3, column 5 → row 3, column 4
3. 6–4: row 2, column 6 → row 3, column 6
4. 5–3: row 1, column 1 → row 2, column 1
5. 2–1: row 2, column 4 → row 2, column 5
6. 4–4: row 1, column 2 → row 2, column 2
7. 2–5: row 3, column 3 → row 2, column 3

1. R1: sum 2 · r1c1, r1c2
2. R2: equals · r1c5, r2c5, r3c5
3. R3: sum 12 · r1c8, r2c8, r3c8
4. R4: less 2 · r2c1
5. R5: empty · r2c3
6. R6: empty · r3c1
7. R7: empty · r3c3
8. R8: equals · r3c6, r3c7, r4c6, r4c7
9. R9: less 9 · r4c1, r4c2, r5c1
10. R10: less 5 · r5c3, r6c3
11. R11: less 2 · r5c6
12. R12: greater 4 · r5c7
13. R13: sum 5 · r6c1
14. R14: less 7 · r6c6, r7c6
15. R15: sum 3 · r6c7, r7c7
16. R16: sum 9 · r7c1, r7c2

sum = target total; equals = same value; unequal = all different values; less = total below target; greater = total above target; empty = no constraint. D labels identify dominoes; R labels identify regions.

Rows and columns below start at 1, from the top left.

1. 6–3: row 7, column 1 → row 7, column 2
2. 3–2: row 4, column 2 → row 4, column 1
3. 6–2: row 3, column 5 → row 3, column 6
4. 1–3: row 5, column 3 → row 6, column 3
5. 2–0: row 1, column 1 → row 1, column 2
6. 0–3: row 7, column 7 → row 6, column 7
7. 1–4: row 2, column 1 → row 3, column 1
8. 2–4: row 6, column 6 → row 7, column 6
9. 3–4: row 3, column 3 → row 2, column 3
10. 4–6: row 1, column 8 → row 2, column 8
11. 6–6: row 1, column 5 → row 2, column 5
12. 5–3: row 6, column 1 → row 5, column 1
13. 2–5: row 4, column 7 → row 5, column 7
14. 2–2: row 3, column 7 → row 3, column 8
15. 2–1: row 4, column 6 → row 5, column 6