--- john.conf.orig	2010-02-26 04:22:09 +0300
+++ john.conf	2010-03-08 00:35:31 +0300
@@ -775,10 +775,7 @@
 }
 
 # Generic implementation of exhaustive search for a partially-known password.
-# This is pre-configured for length 8, lowercase and uppercase letters in the
-# first 4 positions (52 different characters), and digits in the remaining 4
-# positions - however, the corresponding part of init() may be modified to use
-# arbitrary character sets or even fixed characters for each position.
+# init() may be modified to use arbitrary character sets for each position.
 [List.External:KnownForce]
 int last;		// Last character position, zero-based
 int lastofs;		// Last character position offset into charset[]
@@ -795,17 +792,36 @@
 
 /* This defines the character sets for different character positions */
 	pos = 0;
+/* Position 1 */
+	ofs = pos++ << 8;
+	i = 0;
+	c = 'a';
+	while (c <= 'z')
+		charset[ofs + i++] = c++;
+	c = 'A';
+	while (c <= 'Z')
+		charset[ofs + i++] = c++;
+	charset[ofs + i] = 0;
+/* Positions 2, 3, 4 */
 	while (pos < 4) {
 		ofs = pos++ << 8;
 		i = 0;
-		c = 'a';
-		while (c <= 'z')
-			charset[ofs + i++] = c++;
-		c = 'A';
-		while (c <= 'Z')
+		c = '0';
+		while (c <= '9')
 			charset[ofs + i++] = c++;
 		charset[ofs + i] = 0;
 	}
+/* Position 5 */
+	ofs = pos++ << 8;
+	i = 0;
+	c = 'a';
+	while (c <= 'z')
+		charset[ofs + i++] = c++;
+	c = 'A';
+	while (c <= 'Z')
+		charset[ofs + i++] = c++;
+	charset[ofs + i] = 0;
+/* Positions 6, 7, 8 */
 	while (pos < length) {
 		ofs = pos++ << 8;
 		i = 0;