diff --git a/cpp/src/main.cpp b/cpp/src/main.cpp
index ada2f49..c2b83ae 100644
--- a/cpp/src/main.cpp
+++ b/cpp/src/main.cpp
@@ -11,9 +11,9 @@
 #include <chrono>
 
 int main(int argc, char* argv[]) {
-    // std::string pos =
-    //     "r2qkb1r/2p1pppp/p1n1b3/1p6/B2P4/2P1P3/P4PPP/R1BQK1NR w KQkq - 0 9 ";
-    std::string pos = "8/6K1/5P2/8/1k6/8/8/8 w - - 0 1";
+    std::string pos =
+        "r2qkb1r/2p1pppp/p1n1b3/1p6/B2P4/2P1P3/P4PPP/R1BQK1NR w KQkq - 0 9 ";
+    // std::string pos = "8/6K1/5P2/8/1k6/8/8/8 w - - 0 1";
 
     // pos for ai timing<
     // std::string pos =
diff --git a/cpp/src/model/board/board.cpp b/cpp/src/model/board/board.cpp
index a8733b7..616a1dc 100644
--- a/cpp/src/model/board/board.cpp
+++ b/cpp/src/model/board/board.cpp
@@ -283,7 +283,7 @@ Board Board::make_move(Move move, bool recurse_call) const {
     if (!white_to_play)
         ret.n_full_moves = n_full_moves + 1;
 
-    if (ret.n_half_moves > 20) {
+    if (ret.n_half_moves > 150) {
         std::cerr << "too many recursions" << std::endl;
         exit(1);
     }