diff --git a/engine/include/bitboard.h b/engine/include/bitboard.h
index c2ac730..35f7feb 100644
--- a/engine/include/bitboard.h
+++ b/engine/include/bitboard.h
@@ -38,6 +38,23 @@ enum Castling {
     CASTLE_BQ = 1 << 3
 };
 
+enum MoveFlags {
+    MF_NONE        = 0,
+    MF_CAPTURE     = 1 << 0,
+    MF_PROMO       = 1 << 1,
+    MF_ENPASSANT   = 1 << 2,
+    MF_CASTLE      = 1 << 3,
+    MF_DOUBLE_PUSH = 1 << 4,
+};
+
+struct Move {
+    uint16_t from;
+    uint16_t to;
+    uint8_t  piece;
+    uint8_t  promo;
+    uint8_t  flags;  
+}
+
 struct Board {
     uint64_t pieces[12];    // Each set of pieces get a bitboard for each player.
     uint64_t occ[3];        // Color occupancy bitboards.
@@ -55,4 +72,5 @@ struct Board {
 void create_knight_attack_cache();
 void create_pawn_attack_cache();
 void create_king_attack_cache();
-void print_board();
\ No newline at end of file
+void print_board();
+int gen_pseudo_moves(const struct Board *b, Move *out, bool captures_only);
\ No newline at end of file