Pips : October 30, 2026

1. R1: equals · r1c4, r2c4, r3c4
2. R2: equals · r2c3, r3c3
3. R3: less 1 · r3c1, r4c1, r3c2
4. R4: less 1 · r4c4
5. R5: empty · r2c2

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

1. R1: sum 1 · r1c1
2. R2: greater 2 · r1c2
3. R3: less 3 · r2c2, r3c2
4. R4: equals · r2c3, r2c4
5. R5: sum 7 · r2c5, r3c5
6. R6: sum 4 · r2c6, r3c6
7. R7: greater 3 · r3c1
8. R8: empty · r3c4
9. R9: empty · r3c3
10. R10: empty · r2c1

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

1. R1: sum 6 · r1c7
2. R2: less 2 · r2c7
3. R3: sum 0 · r2c9
4. R4: sum 5 · r3c3
5. R5: sum 3 · r3c4
6. R6: sum 0 · r3c5
7. R7: sum 4 · r3c6
8. R8: sum 4 · r3c7
9. R9: sum 6 · r3c8
10. R10: sum 4 · r3c9
11. R11: equals · r4c1, r4c2, r5c2
12. R12: sum 6 · r4c3, r5c3
13. R13: sum 3 · r4c4
14. R14: sum 9 · r4c5, r4c6
15. R15: sum 2 · r4c7
16. R16: sum 6 · r5c6, r5c7
17. R17: less 7 · r6c3, r6c4
18. R18: sum 5 · r6c7, r6c8
19. R19: empty · r2c8

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