Across
- 3. Douro and Tagus (Europe)
- 4. Mindanao and Pampanga (Asia)
- 7. Ishikare and Tone (Asia)
- 11. Jokulsa and Thjors (Europe)
- 12. Rewa (Oceania)
- 14. Dunajec and Narew (Europe)
- 16. Caroni and Orinoco (America)
- 18. Bermejo and Pilcomayo (America)
- 19. Maritsa (Europe/Asia)
- 21. Dunarea and Nistru (Europe)
- 23. Coco and Rio Grande (America)
- 25. Aconcagua and Biobio (America)
- 27. Ulua and Chamelecon (America)
- 28. Drava and Sava (Europe)
- 29. Chu and Naryn (Asia)
Down
- 1. Baghmati and Gandak (Asia)
- 2. Ruvubu and Ruzizi (Africa)
- 5. Maroni and Courantyne (America)
- 6. Markham and Purari (Oceania)
- 8. Mono and Oti (Africa)
- 9. Artibonite and Yuna (America)
- 10. Kemi and Torne (Europe)
- 13. Pedieos (Europe)
- 15. Maranon and Urubamba (America)
- 17. Ca and Ma (Asia)
- 20. Komati (Africa)
- 22. Koulountou (Africa)
- 24. Kura and Terek (Europe)
- 26. Arno and Po (Europe)
- 29. Ibar (Europe)