diff --git a/src/klotski/CMakeLists.txt b/src/klotski/CMakeLists.txt
index 95bf892..32fe0b1 100644
--- a/src/klotski/CMakeLists.txt
+++ b/src/klotski/CMakeLists.txt
@@ -63,7 +63,7 @@ add_subdirectory(benchmark)
 
 ################################################################################
 
-set(FFI_SRC codec.cc tmain.cc version.cc)
+set(FFI_SRC codec.cc all_cases.cc tmain.cc version.cc)
 list(TRANSFORM FFI_SRC PREPEND "ffi/")
 add_library(klotski-ffi OBJECT ${FFI_SRC})
 
diff --git a/src/klotski/ffi/all_cases.cc b/src/klotski/ffi/all_cases.cc
new file mode 100644
index 0000000..6f7b728
--- /dev/null
+++ b/src/klotski/ffi/all_cases.cc
@@ -0,0 +1,23 @@
+#include "klotski.h"
+#include "all_cases.h"
+
+using klotski::AllCases;
+using klotski::BasicRanges;
+using klotski::BASIC_RANGES_SIZE;
+using klotski::ALL_CASES_SIZE_SUM;
+
+void all_cases_build() {
+    AllCases::build();
+}
+
+void basic_ranges_build() {
+    BasicRanges::build();
+}
+
+bool is_all_cases_available() {
+    return AllCases::status() == AllCases::AVAILABLE;
+}
+
+bool is_basic_ranges_available() {
+    return BasicRanges::status() == BasicRanges::AVAILABLE;
+}
diff --git a/src/klotski/ffi/klotski.h b/src/klotski/ffi/klotski.h
index 1733b5e..00a6058 100644
--- a/src/klotski/ffi/klotski.h
+++ b/src/klotski/ffi/klotski.h
@@ -38,6 +38,25 @@ extern "C" {
 }
 #endif
 
+/// ------------------------------- klotski all cases export --------------------------------
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+    extern void all_cases_build();
+    extern void basic_ranges_build();
+    extern bool is_all_cases_available();
+    extern bool is_basic_ranges_available();
+
+    extern const uint32_t all_cases_size;
+    extern void export_all_cases(uint64_t *buffer);
+
+    extern const uint32_t basic_ranges_size;
+    extern void export_basic_ranges(uint32_t *buffer);
+#ifdef __cplusplus
+}
+#endif
+
 /// -------------------------------- klotski codec interface --------------------------------
 
 #ifdef __cplusplus
@@ -70,7 +89,6 @@ extern "C" {
     extern bool common_code_to_string(uint64_t common_code, char common_code_str[]);
     extern bool common_code_to_string_shorten(uint64_t common_code, char common_code_str[]);
     extern bool common_code_from_string(const char common_code_str[], uint64_t *common_code);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/main.c b/src/main.c
index 8b3f9be..19d4f6e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -4,7 +4,7 @@
 int main() {
 //    printf("cli boot\n");
 
-    tmain();
+//    tmain();
     return 0;
 
 //    bool ret = common_code_check(0x1A9BF0C00);