Play computer move in webworker to not freeze interface

[vchess.git] / db / create.sql

diff --git a/db/create.sql b/db/create.sql
index 36bda8a..033df4b 100644 (file)
--- a/db/create.sql
+++ b/db/create.sql
@@ -21,6 +21,7 @@ insert into Variants values
        ('Ultima', 'Exotic captures');
 
 create table Problems (
+       num integer primary key,
        added datetime,
        variant varchar,
        fen varchar,