diff --git a/src/lib/chess/utils.ts b/src/lib/chess/utils.ts
index c5aca34..c4a0dd7 100644
--- a/src/lib/chess/utils.ts
+++ b/src/lib/chess/utils.ts
@@ -1,3 +1,4 @@
+import type { GTK_A11Y, TPM2_PKCS11_TCTI } from "$env/static/private";
 import { Piece } from "./types";
 
 // export function fen2array(fen: string): Int8Array<ArrayBuffer> {
@@ -23,7 +24,7 @@ const CHAR_TO_PIECE: Record<string, number> = {
 export class Board {
   public board = new Int8Array(8 ** 2);
   public details = {
-    turn: "w",
+    whiteTurn: true,
     castling: {
       white: { king: true, queen: true },
       black: { king: true, queen: true },
@@ -39,8 +40,8 @@ export class Board {
 
   loadFEN(fen = startFEN) {
     const [position, turn, castling, enPassant, halfMove, fullMove] = fen.split(" ");
-    this.board.fill(Piece.EMPTY);
     
+    this.board.fill(Piece.EMPTY);
     position.split("/").forEach((row, rank) => {
       let file = 0;
       row.split("").forEach((char) => {
@@ -49,6 +50,18 @@ export class Board {
         file++;
       });
     });
+    
+    this.details.whiteTurn = turn === "w"; 
+    
+    this.details.castling.white.king = castling.includes("K");
+    this.details.castling.white.queen = castling.includes("Q");
+    this.details.castling.black.king = castling.includes("k");
+    this.details.castling.black.queen = castling.includes("q");
+
+    this.details.enPassant = algebraicToIndex(enPassant);
+
+    this.details.halfMove = parseInt(halfMove);
+    this.details.fullMove = parseInt(fullMove);
   }
 }