diff --git a/FENTESTS.txt b/FENTESTS.txt
index 54d2b4a..796702a 100644
--- a/FENTESTS.txt
+++ b/FENTESTS.txt
@@ -7,12 +7,15 @@ r3k2r/8/3B4/8/8/3b4/8/R3K2R w KQkq - 0 1
 r3k2r/8/3BB3/8/8/3bb3/8/R3K2R w KQkq - 0 1
 r2bkb1r/8/8/8/8/3bb3/8/R2BKB1R w KQkq - 0 1
 
+# 4 castle possible, only K+R
+r3k2r/8/8/8/8/8/8/R3K2R w KQkq - 0 1
+
 # illegal positions
 4k3/8/8/8/7b/8/8/4K3 b - - 0 1
 2r1k3/3P4/8/8/8/8/8/4K3 w - - 0 1
 
-# only kings on A1/H8
-k7/8/8/8/8/8/8/K7 b - - 0 1
+# only kings on A1/A8, white to play
+k7/8/8/8/8/8/8/K7 w - - 0 1
 
 # only one move possible (Pf2xBg3)
 k7/8/8/1p1p4/pPpPp3/P1PpPpb1/NBNP1P2/KBB1B3 w - - 0 1
diff --git a/include/debug.h b/include/debug.h
index 22921d7..99383a3 100644
--- a/include/debug.h
+++ b/include/debug.h
@@ -27,6 +27,7 @@
 
 void debug_init(uint level, FILE *stream, bool flush);
 void debug_level_set(uint level);
+uint debug_level_get(void);
 void debug_stream_set(FILE *stream);
 void debug_flush_set(bool flush);
 void _printf debug(uint level, bool timestamp,
@@ -38,6 +39,7 @@ static inline void debug_init(__unused uint level,
                               __unused FILE *stream,
                               _unused bool flush) {}
 static inline void debug_level_set(__unused uint level) {}
+static inline uint debug_level_get(void) {return 0;}
 static inline void debug_stream_set(__unused FILE *stream) {}
 static inline void debug_flush_set(__unused bool level) {}
 static inline void _printf debug(__unused uint level, __unused bool timestamp,
diff --git a/libsrc/debug.c b/libsrc/debug.c
index 3d98ca8..5d776cb 100644
--- a/libsrc/debug.c
+++ b/libsrc/debug.c
@@ -37,19 +37,34 @@ static FILE *stream = NULL;
 void debug_level_set(uint level)
 {
     debug_level = level;
+#   ifdef DEBUG_DEBUG_C
     log(0, "debug level set to %u\n", level);
+#   endif
+}
+
+/**
+ * debug_level_get() - get debug level.
+ * @return: current level debug (unsigned integer).
+ */
+uint debug_level_get(void)
+{
+    return debug_level;
 }
 
 void debug_stream_set(FILE *_stream)
 {
     stream = _stream;
+#   ifdef DEBUG_DEBUG_C
     log(0, "stream set to %d\n", stream? fileno(stream): -1);
+#   endif
 }
 
 void debug_flush_set(bool flush)
 {
     debug_flush = flush;
-    log(0, "debug flush set to %d\n", flush);
+#   ifdef DEBUG_DEBUG_C
+    log(0, "debug flush %s.\n", flush? "set": "unset");
+#   endif
 }
 
 void debug_init(uint level, FILE *_stream, bool flush)