The Sunday coffee club

One deduction at a time

Follow the numbered clues, one-to-one eliminations and cross-grid deductions. When a counterfactual is needed, its assumptions and clue-by-clue contradiction are shown.

Measured complexity: rule tier 1/4 · 27 verified grid deductions · 0 counterfactuals. Difficulty measures the rules used by this solver, not a promised completion time.

1. Step 1: Clue 1: Amelia is paired with Cookie. Amelia must be paired with Cookie.
2. Step 2: Clue 2: Isla is not paired with Brownie. Isla cannot be paired with Brownie.
3. Step 3: Clue 3: Latte is not paired with Brownie. Latte cannot be paired with Brownie.
4. Step 4: Clue 4: Mocha is paired with Scone. Mocha must be paired with Scone.
5. Step 5: Amelia is already matched to Cookie; each item is used once. Amelia cannot be paired with Scone.
6. Step 6: Amelia is already matched to Cookie; each item is used once. Amelia cannot be paired with Brownie.
7. Step 7: Cookie is already matched to Amelia; each item is used once. Oliver cannot be paired with Cookie.
8. Step 8: All other Guests choices for Brownie have been eliminated. Oliver must be paired with Brownie.
9. Step 9: Oliver is already matched to Brownie; each item is used once. Oliver cannot be paired with Scone.
10. Step 10: All other Guests choices for Scone have been eliminated. Isla must be paired with Scone.
11. Step 11: Isla is already matched to Scone; each item is used once. Isla cannot be paired with Cookie.
12. Step 12: Scone is already matched to Mocha; each item is used once. Latte cannot be paired with Scone.
13. Step 13: All other Treats choices for Latte have been eliminated. Latte must be paired with Cookie.
14. Step 14: Scone is already matched to Mocha; each item is used once. Tea cannot be paired with Scone.
15. Step 15: Cookie is already matched to Latte; each item is used once. Tea cannot be paired with Cookie.
16. Step 16: All other Treats choices for Tea have been eliminated. Tea must be paired with Brownie.
17. Step 17: Mocha is already matched to Scone; each item is used once. Mocha cannot be paired with Cookie.
18. Step 18: Mocha is already matched to Scone; each item is used once. Mocha cannot be paired with Brownie.
19. Step 19: Both Amelia and Latte are matched to Cookie; they must belong together. Amelia must be paired with Latte.
20. Step 20: Amelia is already matched to Latte; each item is used once. Amelia cannot be paired with Tea.
21. Step 21: Amelia is already matched to Latte; each item is used once. Amelia cannot be paired with Mocha.
22. Step 22: Latte is already matched to Amelia; each item is used once. Oliver cannot be paired with Latte.
23. Step 23: Latte is already matched to Amelia; each item is used once. Isla cannot be paired with Latte.
24. Step 24: Both Oliver and Tea are matched to Brownie; they must belong together. Oliver must be paired with Tea.
25. Step 25: Oliver is already matched to Tea; each item is used once. Oliver cannot be paired with Mocha.
26. Step 26: Tea is already matched to Oliver; each item is used once. Isla cannot be paired with Tea.
27. Step 27: All other Drinks choices for Isla have been eliminated. Isla must be paired with Mocha.

Answer key

Amelia · Latte · Cookie

Oliver · Tea · Brownie

Isla · Mocha · Scone