| 1. | Sheepshead Association | | | Free group offering game rules, glossary, history, and related resources, with tournament and open play news. www.sheepshead.org |
| 4. | Schafskopf | | | Rules and strategy for the three-handed game variety. www.robreid.com |
| 9. | Schafkopf Group | | | The rules, tactics and variations for the Sheepshead/Skat/Doppelkopf/Schafkopf game family. www.pagat.com |
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