1 files changed, 7 insertions, 1 deletions
diff --git a/src/board.cpp b/src/board.cpp
index cbafcc6..201bd3a 100644
--- a/src/board.cpp
+++ b/src/board.cpp
@@ -1,11 +1,14 @@
 #include "board.hpp"
+#include <cassert>
 #include <cctype>
 #include <cstdio>
 #include <iostream>
 #include <print>
 #include <string>
+#include <utility>
 
 const char toChar(pieceType type) {
+
   switch (type) {
   case NONE:
     return '.';
@@ -22,7 +25,7 @@ const char toChar(pieceType type) {
   case KING:
     return 'K';
   default:
-    return '?';
+    std::unreachable();
   }
 }
 
@@ -80,6 +83,9 @@ void printBoard(board *b) {
 
   std::println();
   std::println("Turn: {}", b->turn ? "White" : "Black");
+
+  assert(b->castle != "");
+
   std::println("Castling: {}", b->castle);
 }