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-rw-r--r--puzzles.but8
1 files changed, 4 insertions, 4 deletions
diff --git a/puzzles.but b/puzzles.but
index 523574c..2508fe3 100644
--- a/puzzles.but
+++ b/puzzles.but
@@ -1553,11 +1553,11 @@ affected by balls in one of the following ways:
re-emerge. This includes beams that meet a ball on the first rank
of the arena.
-\b A beam with a ball to its front-left square gets deflected 90 degrees
- to the right.
+\b A beam with a ball in its front-left square and no ball ahead of it
+ gets deflected 90 degrees to the right.
-\b A beam with a ball to its front-right square gets similarly deflected
- to the left.
+\b A beam with a ball in its front-right square and no ball ahead of
+ it gets similarly deflected to the left.
\b A beam that would re-emerge from its entry location is considered to be
\q{reflected}.