diff --git a/131 - Othello Game/index.html b/131 - Othello Game/index.html
new file mode 100644
index 00000000..aa2692be
--- /dev/null
+++ b/131 - Othello Game/index.html	
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Othello</title>
+    <link rel="stylesheet" href="style.css" />
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css" integrity="sha512-iecdLmaskl7CVkqkXNQ/ZH/XLlvWZOJyj7Yy7tcenmpD1ypASozpmT/E0iPtmFIB46ZmdtAc9eNBvH0H/ZpiBw==" crossorigin="anonymous" referrerpolicy="no-referrer" />
+</head>
+<body>
+    <div class="container">
+       <div id="blackScore">Black Score: 2</div>
+       <div id="othelloBoard">
+        <!--8th Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <!--7th Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <!--6th Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <!--5th Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <!--4th Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <!--3th Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <!--2nd Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <!--1st Rank-->
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+        <div class="square"></div>
+    </div>
+       <div id="whiteScore">White Score: 2</div>
+    </div>
+    <div id="controls">
+    <button id="restartButton">Restart Game</button>
+</div>
+    <div id="alert"></div>
+    <script src="script.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/131 - Othello Game/script.js b/131 - Othello Game/script.js
new file mode 100644
index 00000000..a44e058e
--- /dev/null
+++ b/131 - Othello Game/script.js	
@@ -0,0 +1,331 @@
+const whiteScore = document.getElementById("whiteScore");
+const blackScore = document.getElementById("blackScore");
+const othelloBoard = document.getElementById("othelloBoard");
+const restartButton = document.getElementById("restartButton");
+restartButton.addEventListener("click", restartGame);
+let squares = document.getElementsByClassName("square");
+let squaresToFlip = [];
+let isWhiteTurn = true;
+let whiteCount = 2;
+let blackCount = 2;
+let noLegalMove = false;
+
+setupBoard();
+
+function setupBoard() {
+    for (let i = 0; i < squares.length; i++) {
+        let row = 8 - Math.floor(i / 8);
+        let col = (i % 8) + 1;
+        let id = row * 10 + col;
+        squares[i].setAttribute("id", id);
+        squares[i].addEventListener("click", onSquareClick);
+    }
+
+    placeInitialPieces();
+
+    let legalSquares = getLegalSquares("white");
+    highlightLegalSquares(legalSquares);
+    whiteScore.classList.add("active");
+}
+
+function placeInitialPieces() {
+    const initialPieces = [
+        { id: "44", color: "white" },
+        { id: "55", color: "white" },
+        { id: "45", color: "black" },
+        { id: "54", color: "black" }
+    ];
+
+    initialPieces.forEach(piece => {
+        let square = document.getElementById(piece.id);
+        let pieceElement = createPiece(piece.color);
+        square.appendChild(pieceElement);
+    });
+}
+
+function createPiece(color) {
+    let piece = document.createElement("div");
+    piece.setAttribute("class", "piece " + color);
+    piece.setAttribute("color", color);
+    return piece;
+}
+
+
+function getLegalSquares(pieceColor) {
+    let legalSquares = [];
+    for (let i = 0; i < squares.length; i++) {
+        let row = 8 - Math.floor(i / 8);
+        let col = (i % 8) + 1;
+        let id = (row * 10 + col).toString();
+        let square = document.getElementById(id);
+        if (isSquareOccupied(square) != "blank") continue;
+
+        let directions = [
+            moveToEighthRow,
+            moveToFirstRow,
+            moveToEighthColumn,
+            moveToFirstColumn,
+            moveToEighthRowEighthColumn,
+            moveToEighthRowFirstColumn,
+            moveToFirstRowEighthColumn,
+            moveToFirstRowFirstColumn
+        ];
+
+        for (let direction of directions) {
+            let stopSquareContent = direction(id, pieceColor);
+            if (stopSquareContent != "blank" && squaresToFlip.length > 0) {
+                legalSquares.push(id);
+                break;
+            }
+            squaresToFlip.length = 0;
+        }
+    }
+    return legalSquares;
+}
+
+function isSquareOccupied(square) {
+    if (square.querySelector(".piece")) {
+        return square.querySelector(".piece").getAttribute("color");
+    } else {
+        return "blank";
+    }
+}
+
+function moveToDirection(startingSquareId, pieceColor, rowChange, colChange) {
+    const row = parseInt(startingSquareId.charAt(0));
+    const column = parseInt(startingSquareId.charAt(1));
+    let currentRow = row + rowChange;
+    let currentCol = column + colChange;
+    let squaresToFlipTemp = [];
+
+    while (currentRow >= 1 && currentRow <= 8 && currentCol >= 1 && currentCol <= 8) {
+        let currentSquareId = currentRow + "" + currentCol;
+        let currentSquare = document.getElementById(currentSquareId);
+        let squareContent = isSquareOccupied(currentSquare);
+        if (squareContent == pieceColor) {
+            squaresToFlip.push(...squaresToFlipTemp);
+            return squareContent;
+        }
+        if (squareContent == "blank") return squareContent;
+        squaresToFlipTemp.push(currentSquareId);
+        currentRow += rowChange;
+        currentCol += colChange;
+    }
+    return "blank";
+}
+
+function moveToEighthRow(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, 1, 0); 
+    }
+function moveToFirstRow(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, -1, 0); 
+    }
+function moveToEighthColumn(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, 0, 1); 
+    }
+function moveToFirstColumn(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, 0, -1); 
+    }
+function moveToEighthRowEighthColumn(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, 1, 1); 
+    }
+function moveToEighthRowFirstColumn(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, 1, -1); 
+    }
+function moveToFirstRowEighthColumn(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, -1, 1); 
+    }
+function moveToFirstRowFirstColumn(startingSquareId, pieceColor) {
+     return moveToDirection(startingSquareId, pieceColor, -1, -1); 
+    }
+
+function onSquareClick(e) {
+    let clickedSquare = e.target;
+    let pieceColor = isWhiteTurn ? "white" : "black";
+    let availableSquares = getLegalSquares(pieceColor);
+
+    if (!availableSquares.includes(clickedSquare.id)) return;
+
+    let piece = createPiece(pieceColor);
+    clickedSquare.appendChild(piece);
+    pieceColor == "white" ? whiteCount++ : blackCount++;
+    checkAndFlip(clickedSquare.id, pieceColor);
+    switchTurn();
+    checkEndGame();
+}
+
+function checkAndFlip(clickedSquareId, pieceColor) {
+    let directions = [
+        moveToEighthColumn,
+        moveToEighthRow,
+        moveToEighthRowEighthColumn,
+        moveToEighthRowFirstColumn,
+        moveToFirstColumn,
+        moveToFirstRow,
+        moveToFirstRowEighthColumn,
+        moveToFirstRowFirstColumn
+    ];
+    directions.forEach(direction => direction(clickedSquareId, pieceColor));
+    reversePieces(pieceColor);
+    squaresToFlip.length = 0;
+}
+
+function reversePieces(color) {
+    squaresToFlip.forEach((squareId) => {
+        let square = document.getElementById(squareId);
+        while (square.firstChild) {
+            square.firstChild.remove();
+        }
+        let piece = createPiece(color);
+        square.appendChild(piece);
+        piece.classList.add("flip");
+        color == "white" ? whiteCount++ && blackCount-- : whiteCount-- && blackCount++;
+        whiteScore.innerHTML = "White Score: " + whiteCount;
+        blackScore.innerHTML = "Black Score: " + blackCount;
+    });
+    squaresToFlip.length = 0;
+}
+
+function switchTurn() {
+    isWhiteTurn = !isWhiteTurn;
+    whiteScore.classList.toggle("active", isWhiteTurn);
+    blackScore.classList.toggle("active", !isWhiteTurn);
+    let pieceColor = isWhiteTurn ? "white" : "black";
+    let availableSquares = getLegalSquares(pieceColor);
+    highlightLegalSquares(availableSquares);
+    if (availableSquares.length == 0) {
+        isWhiteTurn = !isWhiteTurn;
+        whiteScore.classList.toggle("active", isWhiteTurn);
+        blackScore.classList.toggle("active", !isWhiteTurn);
+        pieceColor = isWhiteTurn ? "white" : "black";
+        availableSquares = getLegalSquares(pieceColor);
+        highlightLegalSquares(availableSquares);
+        if (availableSquares.length === 0) noLegalMove = true;
+    } else {
+        noLegalMove = false;
+    }
+}
+
+function highlightLegalSquares(legalSquares) {
+    clearLegalSquares();
+    legalSquares.forEach((square) => {
+        const squareElement = document.getElementById(square);
+        squareElement.classList.add("legal-square");
+    });
+}
+
+function clearLegalSquares() {
+    const legalSquares = document.querySelectorAll(".legal-square");
+    for (const square of legalSquares) {
+        square.classList.remove("legal-square");
+    }
+}
+
+function checkAndFlip(clickedSquareId, pieceColor) {
+    let directions = [
+        moveToEighthColumn,
+        moveToEighthRow,
+        moveToEighthRowEighthColumn,
+        moveToEighthRowFirstColumn,
+        moveToFirstColumn,
+        moveToFirstRow,
+        moveToFirstRowEighthColumn,
+        moveToFirstRowFirstColumn
+    ];
+    directions.forEach(direction => direction(clickedSquareId, pieceColor));
+    reversePieces(pieceColor);
+    squaresToFlip.length = 0;
+}
+
+  
+function reversePieces(color) {
+    squaresToFlip.forEach(squareId => {
+        let square = document.getElementById(squareId);
+        while (square.firstChild) {
+            square.removeChild(square.firstChild);
+        }
+        let piece = createPiece(color);
+        square.appendChild(piece);
+        piece.classList.add("flip");
+        if (color === "white") {
+            whiteCount++;
+            blackCount--;
+        } else {
+            whiteCount--;
+            blackCount++;
+        }
+    });
+    whiteScore.innerHTML = "White Score: " + whiteCount;
+    blackScore.innerHTML = "Black Score: " + blackCount;
+}
+
+function switchTurn() {
+    isWhiteTurn = !isWhiteTurn;
+    whiteScore.classList.toggle("active",isWhiteTurn);
+    blackScore.classList.toggle("active",!isWhiteTurn);
+    pieceColor = isWhiteTurn ? "white" : "black";
+    availableSquares = getLegalSquares(pieceColor);
+    highlightLegalSquares(availableSquares);
+    if(availableSquares.length == 0) {
+      isWhiteTurn = !isWhiteTurn;
+      whiteScore.classList.toggle("active",isWhiteTurn);
+      blackScore.classList.toggle("active",!isWhiteTurn);
+      pieceColor = isWhiteTurn ? "white" : "black";
+      availableSquares = getLegalSquares(pieceColor);
+      highlightLegalSquares(availableSquares);
+      if(availableSquares.length===0) noLegalMove = true;
+    }
+}
+
+function checkEndGame() {
+    let message = "";
+    if(
+      !(
+        whiteCount+blackCount ==64 ||
+        whiteCount ==0 ||
+        blackCount ==0 ||
+        noLegalMove
+      )
+    )
+    return;
+    if(whiteCount>blackCount)message = "White Wins!";
+    if(whiteCount<blackCount)message = "Black Wins!";
+    if(whiteCount==blackCount)message = "Draw!";
+        showEndGameMessage(message);
+}
+
+function showEndGameMessage(message) {
+    const alert = document.getElementById("alert");
+    alert.style.display = "block";
+    othelloBoard.style.opacity = 0.5;
+    alert.innerHTML = message;
+}
+
+function restartGame() {
+
+    whiteCount = 2;
+    blackCount = 2;
+    isWhiteTurn = true;
+    noLegalMove = false;
+
+    whiteScore.innerHTML = "White Score: " + whiteCount;
+    blackScore.innerHTML = "Black Score: " + blackCount;
+
+    for (let i = 0; i < squares.length; i++) {
+        let square = squares[i];
+        while (square.firstChild) {
+            square.removeChild(square.firstChild);
+        }
+    }
+
+    placeInitialPieces();
+
+    let pieceColor = isWhiteTurn ? "white" : "black";
+    let legalSquares = getLegalSquares(pieceColor);
+    highlightLegalSquares(legalSquares);
+
+    const alert = document.getElementById("alert");
+    alert.style.display = "none";
+
+    othelloBoard.style.opacity = 1;
+}
diff --git a/131 - Othello Game/style.css b/131 - Othello Game/style.css
new file mode 100644
index 00000000..b401c976
--- /dev/null
+++ b/131 - Othello Game/style.css	
@@ -0,0 +1,201 @@
+body {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    height: 100vh;
+    margin: 0 auto;
+    background: linear-gradient(to bottom right, rgba(47,47,47,1) 20%, rgba(0,0,0,1) 70%);
+    flex-direction: column;
+    box-sizing: border-box;
+}
+
+.container {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 90vw;
+    height: 90vw;
+    max-width: 600px;
+    max-height: 600px;
+    flex-direction: column;
+    box-sizing: border-box;
+}
+
+#othelloBoard {
+    width: 90%;
+    height: 90%;
+    display: flex;
+    flex-wrap: wrap;
+    border: 10px solid transparent;
+    box-sizing: border-box;
+    border-color: #000000;
+}
+
+.square {
+    width: 12.5%;
+    height: 12.5%;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    position: relative;
+    background-color: #0D776D;
+    background-size: cover;
+    background-position: center;
+    background-repeat: no-repeat;
+    box-sizing: border-box;
+    border: 1px solid rgba(96, 149, 159, 0.739);
+}
+
+.piece {
+    width: 80%;
+    height: 80%;
+    border-radius: 50%;
+    position: relative;
+    overflow: hidden;
+    background-color: transparent;
+    cursor: pointer;
+}
+
+.piece.black {
+    background-color: #000000;
+}
+
+.piece.white {
+    background-color: #ffffff;
+}
+
+.legal-square {
+    position: relative;
+    cursor: pointer;
+}
+
+.legal-square::before {
+    content: "";
+    display: block;
+    width: 60%;
+    height: 60%;
+    border: 4px solid #e8c0edb3;
+    background-color: transparent;
+    border-radius: 50%;
+    top: 40%;
+    left: 40%;
+}
+
+.legal-square:hover {
+    opacity: 0.7;
+}
+
+@keyframes flip {
+    from {
+        transform: rotateY(0deg);
+    }
+    to {
+        transform: rotateY(180deg);
+    }
+}
+
+.flip {
+    animation: flip 0.5s linear;
+}
+
+#whiteScore, #blackScore {
+    display: flex;
+    width: 90%;
+    background-color: rgb(42, 42, 42);
+    color: white;
+    text-align: center;
+    height: 10%;
+    align-items: center;
+    justify-content: center;
+    border: 4px solid black;
+    box-sizing: border-box;
+    position: relative;
+    font-size: 25px;
+}
+
+#blackScore {
+    border-top-left-radius: 10px;
+    border-top-right-radius: 10px;
+}
+
+#whiteScore {
+    border-bottom-left-radius: 10px;
+    border-bottom-right-radius: 10px;
+}
+
+#whiteScore::after, #blackScore::after {
+    font-family: "FontAwesome";
+    content: "\f111";
+    color: #c3c3c3;
+    margin-left: 10px;
+    font-size: 15px;
+}
+
+#whiteScore.active::after, #blackScore.active::after {
+    font-family: "FontAwesome";
+    content: "\f111";
+    color: #3dff24;
+    margin-left: 10px;
+    font-size: 15px;
+}
+
+#alert {
+    position: fixed;
+    top: 44%;
+    left: 50%;
+    right: 50%;
+    bottom: 50%;
+    transform: translate(-50%, -50%);
+    color: #EAAC48;
+    width: 45vw;
+    text-align: center;
+    align-content: center;
+    justify-content: center;
+    font-size: 3em;
+    font-weight: bold;
+    z-index: 1000;
+    display: none;
+}
+
+#restartButton {
+    background-color: #41da49;
+    color: white;
+    padding: 15px 32px;
+    text-align: center;
+    text-decoration: none;
+    display: inline-block;
+    font-size: 16px;
+    margin-top: 20px;
+    cursor: pointer;
+    border: none;
+    border-radius: 5px;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+    transition: background-color 0.3s ease;
+}
+
+#restartButton:hover {
+    background-color: #4CAF50;
+}
+
+
+@media (min-width: 600px) {
+    .container {
+        width: 500px;
+        height: 500px;
+    }
+    #alert {
+            width: 200px;
+            font-size: 2em;
+        }
+}
+
+@media (min-width: 800px) {
+    .container {
+        width: 600px;
+        height: 600px;
+    }
+    #alert {
+        width: 500px;
+        font-size: 3em;
+    }
+}
diff --git a/30DaysOfJavaScript/assets/Taash Game.png b/30DaysOfJavaScript/assets/121 - Taash Game.png
similarity index 100%
rename from 30DaysOfJavaScript/assets/Taash Game.png
rename to 30DaysOfJavaScript/assets/121 - Taash Game.png
diff --git a/30DaysOfJavaScript/assets/131 - Othello.png b/30DaysOfJavaScript/assets/131 - Othello.png
new file mode 100644
index 00000000..144b0941
Binary files /dev/null and b/30DaysOfJavaScript/assets/131 - Othello.png differ
diff --git a/30DaysOfJavaScript/script.js b/30DaysOfJavaScript/script.js
index 3671f93b..13d1a5b8 100644
--- a/30DaysOfJavaScript/script.js
+++ b/30DaysOfJavaScript/script.js
@@ -191,7 +191,9 @@ function search_project() {
       { name: "Guess the Country", url: "./115 - Guess The Country/index.html"},
       { name: "2048 Game", url: "./124 - 2048 Game/index.html"},
       { name: "Flappy Bird Game", url: "./125 - Flappy Bird/index.html"},
-      { name: "Largest EigenValue and EigenVector Calculator", url: "./128 - Eigen Value and Vector Calculator/index.html"}
+      { name: "Largest EigenValue and EigenVector Calculator", url: "./128 - Eigen Value and Vector Calculator/index.html"},
+      { name: "Othello Game", url: "./131 - Othello Game/index.html"},
+
 ];
 
   // Filter suggestions based on input
diff --git a/README.md b/README.md
index a8bb40d8..23f348a1 100644
--- a/README.md
+++ b/README.md
@@ -169,9 +169,10 @@ Repo containing all the projects made in 30 Days while completing the <b>30 Days
 | 114 |                     [Movie Guessing Game](https://30daysofjs.netlify.app/114%20-%20Movie%20-%20Guessing%20Game/)                     |
 | 116 |                               [Shell Game](https://30daysofjs.netlify.app/116%20-%20Shell%20-%20Game/)                               |
 | 124 |                                  [2048 Game](https://30daysofjs.netlify.app/124%20-%202048%20Game/)                                  |
-| 125 |                        [Flappy Bird Game](https://30daysofjs.netlify.app/125%20-%20Flappy%20-%20Bird%20Game/)                        |
+| 125 |                        [Flappy Bird Game](https://30daysofjs.netlify.app/125%20-%20flappy%20bird/)                        |
 | 126 |                                [Arcade Game](https://30daysofjs.netlify.app/124%20-%Arcade48%20Game/)                                |
 | 128 | [Largest EigenValue and EigenVector Calculator](https://30daysofjs.netlify.app/128%20-%20Eigen%20Value%20and%20Vector%20Calculator/) |
+| 131 | [Othello Game]() |
 
  </td><td>   
  </td></tr></table>
diff --git a/index.html b/index.html
index d7bd00fd..992719f4 100644
--- a/index.html
+++ b/index.html
@@ -1883,21 +1883,19 @@ <h4>2048 Game</h4>
         </p>
       </div>
     </div>
-  <div class="maincard">
-    <div class="card1">
-        <img src="30DaysOfJavaScript/assets/catch-the-ball.png" alt="Project Image">
-    </div>
-    <div class="card">
-        <h4>Catch The Ball</h4>
+
+    <div class="item">
+      <img src="30DaysOfJavaScript/assets/catch-the-ball.png" alt="Project Image">
+      <h4>Catch The Ball</h4>
+      <a target="_blank" 
+        href="https://github.com/swapnilsparsh/30DaysOfJavaScript/tree/master/117-CatchTheBall">
+        <i class="fa-brands fa-square-github"></i>
+        <a target="_blank" href="117-CatchTheBall/index.html"><i class="fa-solid fa-link"></i> </a>
+      </a>
+      <div class="description">
         <p>Catch the ball on the rolling pad and beat your own highscore!</p>
-        <a href="117-CatchTheBall"><button class="button">Live</button></a>
-        <a href="https://github.com/swapnilsparsh/30DaysOfJavaScript/tree/master/117-CatchTheBall" target="_blank"><button class="button">Github</button></a>
+      </div>   
     </div>
-</div>
-  <div class="maincard">
-    <div class="card1">
-      <img src="30DaysOfJavaScript/assets/121 - Taash Game.png" alt="Taash Game">
-
 
     <div class="item">
       <img src="30DaysOfJavaScript/assets/125-Flappy Bird.png" alt="Flappy Bird Game">
@@ -1924,7 +1922,6 @@ <h4>Taash Game</h4>
     <div class="description">
       <p> Play a classic game of Taash (cards) against the computer.
       </p>
-
     </div>
   </div>
 
@@ -1951,6 +1948,7 @@ <h4>Lights Out</h4>
       <a target="_blank" href="122 - Lights Out/index.html"><i class="fa-solid fa-link"></i> </a>
     </a>
     </div>
+
     <div class="item">
       <img src="30DaysOfJavaScript\assets\128.png" alt="Largest EigenValue and EigenVector Calculator">
       <h4>Largest EigenValue and EigenVector Calculator</h4>
@@ -1964,13 +1962,12 @@ <h4>Largest EigenValue and EigenVector Calculator</h4>
         </p>
       </div>
     </div>
-</div>
 
 <div class="item">
   <img src="30DaysOfJavaScript/assets/125- Arcade Game.png" alt="Arcade Game">
   <h4>Arcade Game</h4>
   <a target="_blank"
-    href="https://github.com/swapnilsparsh/30DaysOfJavaScript/tree/master/111%20-%20Arcade%20Game%20">
+    href="https://github.com/swapnilsparsh/30DaysOfJavaScript/tree/master/125-%20Arcade%20Game">
     <i class="fa-brands fa-square-github"></i>
     <a target="_blank" href="125- Arcade Game\index.html"><i class="fa-solid fa-link"></i> </a>
   </a>
@@ -1979,20 +1976,38 @@ <h4>Arcade Game</h4>
       A pure CSS game where the user controls a stack of blocks by clicking and dragging the mouse. 
     </p>
   </div>
+  </div>
 
-  <div class="maincard">
-    <div class="card1">
-      <img src="30DaysOfJavaScript/assets/123-Reverse Memory Game.png" alt="Reverse Memory Game">
+  <div class="item">
+    <img src="30DaysOfJavaScript/assets/131 - Othello.png" alt="Othello Game">
+    <h4>Othello Game</h4>
+    <a target="_blank"
+     href="https://github.com/swapnilsparsh/30DaysOfJavaScript/tree/master/131%20-%20Othello%20Game">
+     <i class="fa-brands fa-square-github"></i>
+     <a target="_blank" href="131 - Othello Game/index.html"><i class="fa-solid fa-link"></i> </a>
+    </a>
+    <div class="description">
+      <p>
+        Othello is a strategic board game where players aim to flip their opponent's discs to their color.
+      </p>
     </div>
-    <div class="card">
+  </div>
+
+  <div class="item">
+      <img src="30DaysOfJavaScript/assets/123-Reverse Memory Game.png" alt="Reverse Memory Game">
       <h4>Reverse Memory Game</h4>
+      <a target="_blank"
+      href="https://github.com/swapnilsparsh/30DaysOfJavaScript/tree/master/123-Reverse%20Memory%20Game">
+      <i class="fa-brands fa-square-github"></i>
+      <a target="_blank" href="123-Reverse Memory Game/index.html"><i class="fa-solid fa-link"></i> </a>
+    </a>
+    <div class="description">
       <p>
         A fun and challenging memory game where you must recall a sequence of colors in reverse order.
       </p>
-      <a href="123-Reverse Memory Game/index.html" target="_blank"><button class="button">Live</button></a>
-      <a href="https://github.com/swapnilsparsh/30DaysOfJavaScript/tree/master/123-Reverse%20Memory%20Game" target="_blank"><button class="button">Github</button></a>
     </div>
   </div>
+
 </div>
 
 
@@ -2007,7 +2022,7 @@ <h4>Reverse Memory Game</h4>
       <button onclick="goToPage(2)">2</button>
       <button onclick="goToPage(3)">3</button>
       <button onclick="goToPage(4)">4</button>
-      <!-- <button onclick="goToPage(5)">5</button> -->
+      <button onclick="goToPage(5)">5</button>
       <!-- <button onclick="goToPage(6)">6</button> -->
       <!-- <button onclick="goToPage(7)">7</button> -->
       <button onclick="goToNextPage()" class="next_btn">Next &rarr;</button>