Pips : October 25, 2026

1. R1: greater 4 · r1c1
2. R2: empty · r1c2
3. R3: less 1 · r1c3, r2c2, r2c3
4. R4: greater 2 · r1c4
5. R5: equals · r3c2, r4c2
6. R6: sum 6 · r3c3, 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. 3–5: row 1, column 2 → row 1, column 1
2. 4–1: row 4, column 3 → row 4, column 2
3. 1–0: row 3, column 2 → row 2, column 2
4. 0–2: row 2, column 3 → row 3, column 3
5. 3–0: row 1, column 4 → row 1, column 3

1. R1: empty · r1c2
2. R2: empty · r1c3
3. R3: sum 0 · r1c4
4. R4: less 2 · r2c2
5. R5: empty · r2c3
6. R6: equals · r3c1, r3c2
7. R7: sum 3 · r3c3
8. R8: sum 6 · r3c4
9. R9: empty · r4c2
10. R10: greater 2 · r4c3
11. R11: empty · r4c4
12. R12: greater 4 · r5c2
13. R13: sum 6 · r5c3

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

1. R1: sum 2 · r1c1
2. R2: sum 5 · r1c2
3. R3: sum 3 · r1c3
4. R4: sum 2 · r1c4
5. R5: sum 5 · r1c5
6. R6: sum 0 · r2c1
7. R7: sum 0 · r2c2
8. R8: sum 3 · r2c3
9. R9: sum 4 · r2c4
10. R10: sum 3 · r2c5
11. R11: sum 3 · r3c1
12. R12: sum 3 · r3c2
13. R13: sum 3 · r3c3
14. R14: sum 6 · r3c4
15. R15: sum 2 · r3c5
16. R16: sum 5 · r3c6
17. R17: sum 1 · r4c1
18. R18: sum 4 · r4c2
19. R19: sum 4 · r4c3
20. R20: sum 1 · r4c4
21. R21: sum 2 · r4c5
22. R22: sum 0 · r4c6
23. R23: sum 0 · r5c2
24. R24: sum 1 · r5c3
25. R25: sum 5 · r5c4
26. R26: sum 0 · r5c5
27. R27: sum 1 · r5c6
28. R28: sum 4 · r6c2
29. R29: sum 5 · r6c3
30. R30: sum 1 · r6c4
31. R31: sum 4 · r6c5
32. R32: sum 2 · r6c6

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