concise reference sheets updated

My collection of concise reference sheets continues to grow. See the full list of games for which I have done such reference sheets here (more than 250 of them). Download the latest set (version 20) here. Additions and updates since the previous version are as follows:

1. Alhambra
2. Axis & Allies: Guadalcanal (updated)
3. Cartagena
4. Glass Road
5. Hare and Tortoise (updated)
6. Heroes of Normandie
7. Historia
8. Imperial Settlers
9. Lewis & Clark
10. Machi Koro
11. The Message: Emissary Crisis
12. Morels
13. The Palaces of Carrara
14. Panamax
15. Pandemic: The Cure
16. Roads & Boats (updated)
17. Roll for the Galaxy
18. Samurai Spirit
19. Targi
20. Tragedy Looper
21. Virgin Queen
22. Wildcatters