Pips : October 26, 2026

1. R1: equals · r1c1, r1c2, r2c1
2. R2: empty · r2c4
3. R3: sum 7 · r3c1, r4c1
4. R4: sum 7 · r3c4, r4c4
5. R5: sum 11 · r4c2, r4c3

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

1. R1: greater 2 · r1c1
2. R2: equals · r1c2, r1c3, r2c3
3. R3: sum 4 · r2c1
4. R4: less 1 · r2c2
5. R5: empty · r2c4
6. R6: less 5 · r2c5
7. R7: unequal · r3c1, r3c2
8. R8: empty · r3c3
9. R9: sum 5 · r3c4, r3c5
10. R10: greater 2 · r4c3

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. 0–5: row 2, column 2 → row 3, column 2
2. 1–3: row 1, column 2 → row 1, column 1
3. 6–4: row 3, column 1 → row 2, column 1
4. 2–5: row 3, column 3 → row 4, column 3
5. 1–1: row 1, column 3 → row 2, column 3
6. 4–5: row 3, column 4 → row 2, column 4
7. 2–1: row 2, column 5 → row 3, column 5

1. R1: sum 5 · r1c8
2. R2: sum 4 · r1c9
3. R3: sum 5 · r2c7
4. R4: empty · r2c8
5. R5: empty · r2c9
6. R6: sum 5 · r3c1
7. R7: equals · r3c2, r3c3, r4c3, r5c3
8. R8: sum 4 · r3c4, r3c5
9. R9: sum 2 · r3c6
10. R10: equals · r3c7, r4c7, r5c7, r6c7
11. R11: sum 2 · r3c8
12. R12: sum 6 · r3c9
13. R13: sum 0 · r4c2
14. R14: sum 2 · r4c4
15. R15: sum 6 · r4c5
16. R16: sum 5 · r4c6
17. R17: greater 8 · r4c9, r5c9
18. R18: sum 7 · r5c2, r6c2
19. R19: sum 3 · r5c4
20. R20: sum 1 · r5c5
21. R21: sum 8 · r5c6, r6c6
22. R22: sum 3 · r6c3

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. 5–3: row 1, column 8 → row 2, column 8
2. 5–2: row 4, column 6 → row 5, column 6
3. 6–1: row 4, column 5 → row 5, column 5
4. 0–6: row 6, column 7 → row 6, column 6
5. 1–0: row 3, column 3 → row 3, column 4
6. 4–0: row 5, column 2 → row 4, column 2
7. 1–1: row 4, column 3 → row 5, column 3
8. 2–3: row 4, column 4 → row 5, column 4
9. 2–6: row 3, column 8 → row 3, column 9
10. 0–0: row 4, column 7 → row 5, column 7
11. 3–6: row 5, column 9 → row 4, column 9
12. 5–1: row 3, column 1 → row 3, column 2
13. 0–5: row 3, column 7 → row 2, column 7
14. 2–4: row 3, column 6 → row 3, column 5
15. 3–3: row 6, column 2 → row 6, column 3
16. 4–4: row 1, column 9 → row 2, column 9