house-rules: document our black adjustments

diff --git a/house-rules.md b/house-rules.md
index 98baef7275c9fd658ca47d3abc238b3f0ab73911..df574572b3bac25932117d4862e29a6e72a60018 100644 (file)
--- a/house-rules.md
+++ b/house-rules.md
@@ -25,6 +25,32 @@ last *three* chips, not just the last *two*.
 [Rationale: Greens seem not to come up.  In my experience, even with
 this change they are still quite weak.]
 
+
+Blacks book V
+-------------
+
+If you have *any* black in the last three, you get rubies for *all*
+your own blacks.
+
+Rationale: this adds an element of diminishing returns for the player
+*buying* the black, which was otherwise missing.  The official rules
+text is ambiguous. ]
+
+
+Blacks book VI
+--------------
+
+You are not eligible for the ruby if you got the droplet.
+
+[Rationale: these are somewhat be overpowered, especially if you have
+many.  We want to debuff them.]
+
+No ruby awarded if more than one person got the droplet.
+
+[Rationale: As above, but also this is a usual 1st/2nd prize rule.]
+
+
+
 Locoweed book VI "last coloured chip"
 -------------------------------------