Pips : October 29, 2026

1. R1: less 1 · r1c2
2. R2: empty · r1c3
3. R3: greater 4 · r2c1
4. R4: less 3 · r2c4
5. R5: empty · r3c1
6. R6: less 1 · r3c2
7. R7: sum 10 · r3c3, r3c4
8. R8: empty · r4c2
9. R9: greater 5 · 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. 0–4: row 3, column 2 → row 3, column 3
2. 0–5: row 1, column 2 → row 1, column 3
3. 4–5: row 3, column 1 → row 2, column 1
4. 3–6: row 4, column 2 → row 4, column 3
5. 1–6: row 2, column 4 → row 3, column 4

1. R1: empty · r1c1
2. R2: sum 3 · r2c1, r3c1, r4c1
3. R3: greater 3 · r2c2
4. R4: equals · r2c3, r3c2, r3c3, r4c3
5. R5: empty · r2c4
6. R6: empty · r3c4
7. R7: less 5 · r4c2, r5c2
8. R8: less 1 · 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. 6–3: row 2, column 3 → row 2, column 4
2. 5–0: row 3, column 4 → row 4, column 4
3. 6–6: row 3, column 3 → row 4, column 3
4. 1–6: row 2, column 1 → row 1, column 1
5. 2–0: row 4, column 1 → row 3, column 1
6. 1–2: row 5, column 2 → row 4, column 2
7. 6–4: row 3, column 2 → row 2, column 2

1. R1: sum 8 · r1c7, r1c8, r2c7, r2c8
2. R2: less 3 · r2c6
3. R3: sum 6 · r2c9
4. R4: greater 5 · r3c1, r4c1
5. R5: greater 7 · r3c2, r3c3
6. R6: equals · r3c7, r4c7, r5c6, r5c7
7. R7: greater 1 · r3c8
8. R8: unequal · r4c3, r5c3, r6c3
9. R9: sum 7 · r4c4, r5c4
10. R10: equals · r5c5, r6c5, r6c6
11. R11: sum 2 · r6c4
12. R12: sum 3 · r7c4, r8c4
13. R13: empty · r9c4
14. R14: empty · r9c5

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