diff --git a/j2-Baulwuerfe/CMakeLists.txt b/j2-Baulwuerfe/CMakeLists.txt
index 53e3424..2f591d3 100644
--- a/j2-Baulwuerfe/CMakeLists.txt
+++ b/j2-Baulwuerfe/CMakeLists.txt
@@ -1,4 +1,4 @@
 file(GLOB J2SOURCES "src/*.c")
 file(GLOB ACLSOURCES "../lib/acl/src/*.c")
-add_executable(j2 ${J1SOURCES} ${ACLSOURCES})
+add_executable(j2 ${J2SOURCES} ${ACLSOURCES})
 target_link_libraries(j2 PRIVATE m)
diff --git a/j2-Baulwuerfe/j2 b/j2-Baulwuerfe/j2
new file mode 100755
index 0000000..8a248fb
Binary files /dev/null and b/j2-Baulwuerfe/j2 differ
diff --git a/j2-Baulwuerfe/src/main.c b/j2-Baulwuerfe/src/main.c
index 9dd7a9e..b7e7c95 100644
--- a/j2-Baulwuerfe/src/main.c
+++ b/j2-Baulwuerfe/src/main.c
@@ -1,4 +1,13 @@
 #include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <acl/file.h>
+
+enum baulwurfhuegel{baulwurfhuegel = 'X', keinBaulwurfhuegel = ' '};
+
+int width, height;
 
 void pointerCheck(void *pointer) {
 	if(pointer == NULL) {
@@ -7,8 +16,33 @@ void pointerCheck(void *pointer) {
 	}
 }
 
+bool checkRow(char *row) {
+	for(uint8_t i = 0; i < 4; ++i) {
+		if(row[i * (width + 1)] == keinBaulwurfhuegel) return false;
+	}
+	return true;
+}
+
 int main(int argc, char *argv[]) {
 	if(argc != 2) printf("file argument required");
 	bool sucess;
 	FILE *fp = fopen(argv[1], "rb");
 	char *input = acl_ReadTextFile(fp, &sucess);
+	fclose(fp);
+	pointerCheck(input);
+	char *heightText;
+	char *textRest;
+	width = strtol(input, &heightText, 10);
+	++heightText; // height points does not point to \n anymore
+	height = strtol(heightText, &textRest, 10);
+	++textRest;
+	printf("height: %d width: %d\n", height, width);
+	unsigned baulwurfhuegelCounter = 0;
+	for(char *i = textRest; (uintptr_t)i <= (uintptr_t)textRest + ((height - 4) * (width + 1)); i += width + 1) {
+		for(char *j = i; (uintptr_t)j < (uintptr_t)i + width - 1; ++j) {
+			baulwurfhuegelCounter += checkRow(j) && checkRow(j + 2) && j[1] == baulwurfhuegel && j[1 + 3 * (width + 1)];
+		}
+	}
+	free(input);
+	printf("Baulwurfhuegel: %u", baulwurfhuegelCounter);
+}