diff --git a/README.md b/README.md
index 4ac6747..50ac27a 100644
--- a/README.md
+++ b/README.md
@@ -37,3 +37,10 @@ responding, but just wait and it'll be fine eventually. If not, short-circuit th
 
 1. Open the game in two separate tabs
 2. Press "Ready" on both tabs once they are fully loaded
+
+### Implementation bugs
+
+* When attacking, the units are not subtracted from the attacking region correctly.
+* Some proofs are not verified
+  * Proof of the ciphertext used when claiming.
+  * Proof of the ciphertext used when capturing.