diff --git a/src/lookup.rs b/src/lookup.rs
index aaabdf3..408c750 100644
--- a/src/lookup.rs
+++ b/src/lookup.rs
@@ -109,7 +109,7 @@ macro_rules! by_direction {
     }};
 }
 
-const RAYS: BySquare<ByDirection<Bitboard>> = by_square!(
+static RAYS: BySquare<ByDirection<Bitboard>> = by_square!(
     square,
     ByDirection([Bitboard(0); 8]),
     by_direction!(direction, {
@@ -123,7 +123,7 @@ const RAYS: BySquare<ByDirection<Bitboard>> = by_square!(
     })
 );
 
-const LINES: BySquare<BySquare<Bitboard>> = by_square!(a, BySquare([Bitboard(0); 64]), {
+static LINES: BySquare<BySquare<Bitboard>> = by_square!(a, BySquare([Bitboard(0); 64]), {
     by_square!(b, Bitboard(0), {
         let mut res = Bitboard(0);
         loop_all_directions!(d, {
@@ -136,7 +136,7 @@ const LINES: BySquare<BySquare<Bitboard>> = by_square!(a, BySquare([Bitboard(0);
     })
 });
 
-const SEGMENTS: BySquare<BySquare<Bitboard>> = by_square!(a, BySquare([Bitboard(0); 64]), {
+static SEGMENTS: BySquare<BySquare<Bitboard>> = by_square!(a, BySquare([Bitboard(0); 64]), {
     by_square!(b, Bitboard(0), {
         let mut res = 0;
         loop_all_directions!(d, {
@@ -149,7 +149,7 @@ const SEGMENTS: BySquare<BySquare<Bitboard>> = by_square!(a, BySquare([Bitboard(
     })
 });
 
-const KING_MOVES: BySquare<Bitboard> = by_square!(sq, Bitboard(0), {
+static KING_MOVES: BySquare<Bitboard> = by_square!(sq, Bitboard(0), {
     let mut res = 0;
     loop_all_directions!(d, {
         if let Some(x) = sq.trans(d) {
@@ -159,7 +159,7 @@ const KING_MOVES: BySquare<Bitboard> = by_square!(sq, Bitboard(0), {
     Bitboard(res)
 });
 
-const KNIGHT_MOVES: BySquare<Bitboard> = by_square!(s, Bitboard(0), {
+static KNIGHT_MOVES: BySquare<Bitboard> = by_square!(s, Bitboard(0), {
     let mut res = Bitboard(0);
     if let Some(s) = s.trans(Direction::North) {
         if let Some(s) = s.trans(Direction::NorthEast) {
@@ -196,7 +196,7 @@ const KNIGHT_MOVES: BySquare<Bitboard> = by_square!(s, Bitboard(0), {
     res
 });
 
-const PAWN_ATTACKS: ByColor<BySquare<Bitboard>> = {
+static PAWN_ATTACKS: ByColor<BySquare<Bitboard>> = {
     by_color!(color, {
         let direction = match color {
             Color::White => Direction::North,
@@ -278,7 +278,7 @@ const fn rook_premask(square: Square) -> Bitboard {
     Bitboard(premask)
 }
 
-const MAGICS: (BySquare<Magic>, BySquare<Magic>, usize) = {
+static MAGICS: (BySquare<Magic>, BySquare<Magic>, usize) = {
     let mut len: usize = 0;
     (
         by_square!(
@@ -353,7 +353,7 @@ struct Magic {
 }
 
 #[allow(long_running_const_eval)]
-const MAGIC_TABLE: [Bitboard; MAGICS.2] = {
+static MAGIC_TABLE: [Bitboard; MAGICS.2] = {
     let mut table = [Bitboard(0); MAGICS.2];
     by_square!(square, (), {
         let Magic {