diff --git a/klotski/main.cc b/klotski/main.cc
index 659653e..47799b7 100644
--- a/klotski/main.cc
+++ b/klotski/main.cc
@@ -39,11 +39,29 @@ int main() {
 //    printf("%09lX\n", s.tiny_decode(14323231));
 
 
-    if (CommonCode::check(0x4FEA13400)) {
-        std::cout << "true" << std::endl;
-    } else {
-        std::cout << "false" << std::endl;
+//    if (CommonCode::check(0x4FEA13400)) {
+//        std::cout << "true" << std::endl;
+//    } else {
+//        std::cout << "false" << std::endl;
+//    }
+
+//    uint32_t sum = 0;
+    for (uint32_t head = 0; head < 1; ++head) {
+        auto prefix = (uint64_t)head << 32;
+        for (uint64_t range = 0; range < 0x100000000; ++range) {
+            uint64_t code = prefix | range;
+            if (CommonCode::check(code)) {
+                printf("%09lX\n", code);
+//                ++sum;
+            }
+
+//            if (range % 0x1000000 == 0) {
+//                std::cout << range / 0x1000000 << std::endl;
+//            }
+
+        }
     }
+//    std::cout << "sum: " << sum << std::endl;
 
     return 0;
 }