diff --git a/README.md b/README.md
index ef7968a..1a7eea9 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Versioning and Build
 - [x] Each cell is an object that stores pertinent information for that cell (ie. wasClicked, isBomb, adjacentBombCount...)
 - [x] One way to store these values to keep track of position is an adjacency matrix .
 - [x] One could also have a property pointing to adjacent cells directly on the cell object.
-- [ ] Add the ability to change the difficulty (size of the board and quantity of mines).
+- [x] Add the ability to change the difficulty (size of the board and quantity of mines).
 - [ ] Add a timer to the game.
 - [ ] View a list of recently played user times and difficulty setting.
 - [ ] Define a RESTful API that connects to a postgres database.
diff --git a/src/App.css b/src/App.css
index 642d8a2..5d56fec 100644
--- a/src/App.css
+++ b/src/App.css
@@ -8,45 +8,36 @@
   margin-bottom: 10px;
 }
 
-.game-result {
-  color: red;
+.game-difficulty {
+  text-align: center;
+  margin-bottom: 10px;
+  display: grid;
+  grid: 1fr 1fr 1fr / 1fr auto 1fr;
 }
 
-/* .App {
-  text-align: center;
+.game-difficulty span {
+  grid-column: 1 / 2;
+  text-align: end;
 }
 
-.App-logo {
-  height: 40vmin;
-  pointer-events: none;
+.game-difficulty input {
+  grid-column: 2 / 3;
+  max-width: 50px;
+  margin: auto 10px;
 }
 
-@media (prefers-reduced-motion: no-preference) {
-  .App-logo {
-    animation: App-logo-spin infinite 20s linear;
-  }
+.game-difficulty .columns {
+  grid-row: 1 / 2;
 }
 
-.App-header {
-  background-color: #282c34;
-  min-height: 100vh;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  font-size: calc(10px + 2vmin);
-  color: white;
+.game-difficulty .rows {
+  grid-row: 2 / 3;
 }
 
-.App-link {
-  color: #61dafb;
+.game-difficulty button {
+  grid-area: 1/3/4/4;
 }
 
-@keyframes App-logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
-} */
+.game-result {
+  color: red;
+}
diff --git a/src/App.tsx b/src/App.tsx
index b2fee03..b4ca8b4 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -14,6 +14,10 @@ export interface BoardContextInterface {
   setAttributeCount: Dispatch<React.SetStateAction<AttributeCount>>;
   gameResult: GameResult;
   setGameResult: Dispatch<React.SetStateAction<GameResult>>;
+  rows: number;
+  cols: number;
+  mines: number;
+  setCurrentMines: Dispatch<React.SetStateAction<number>>;
 }
 export const BoardContext = createContext<BoardContextInterface | undefined>(
   undefined,
@@ -30,13 +34,25 @@ const App: React.FC = () => {
 
   const [gameResult, setGameResult] = useState<GameResult>('');
 
-  const global = {
-    rows: 20,
-    cols: 30,
-    mines: 10,
+  const [rows, setRows] = useState(10);
+  const [cols, setCols] = useState(10);
+  const [mines, setMines] = useState(10);
+  const [currentMines, setCurrentMines] = useState(10);
+
+  const handleColumnsChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    setCols(parseInt(e.target.value));
+  };
+
+  const handleRowsChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    setRows(parseInt(e.target.value));
+  };
+
+  const handleMinesChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    setMines(parseInt(e.target.value));
   };
 
-  const handleGameRestartClick = () => {
+  const handleNewGameClick = (e: React.FormEvent) => {
+    e.preventDefault();
     setGameResult('');
     setGameId(gameId + 1);
 
@@ -62,6 +78,10 @@ const App: React.FC = () => {
         setAttributeCount,
         gameResult,
         setGameResult,
+        rows,
+        cols,
+        mines,
+        setCurrentMines,
       }}
     >
       <div className="">
@@ -70,17 +90,47 @@ const App: React.FC = () => {
           Game ID: {gameId}
           <br />
           Remaining Unflagged Mines:{' '}
-          {global.mines - attributeCount.flaggedCount >= 0
-            ? global.mines - attributeCount.flaggedCount
+          {/* TODO: store initial mine count for this */}
+          {currentMines - attributeCount.flaggedCount >= 0
+            ? currentMines - attributeCount.flaggedCount
             : 0}
           <br />
+          <form className="game-difficulty" onSubmit={handleNewGameClick}>
+            <span className="columns">Columns:</span>
+            <input
+              type="number"
+              name="columns"
+              className="columns"
+              onChange={handleColumnsChange}
+              value={cols}
+            />
+
+            <span className="rows">Rows:</span>
+            <input
+              type="number"
+              name="rows"
+              className="rows"
+              onChange={handleRowsChange}
+              value={rows}
+            />
+
+            <span className="mines">Mines:</span>
+            <input
+              type="number"
+              name="mines"
+              className="mines-input"
+              onChange={handleMinesChange}
+              value={mines}
+            />
+
+            <button type="submit">New Game</button>
+          </form>
           <span className="game-result">{endMessage}</span>
-          <br />
           {gameResult !== '' ? (
-            <button onClick={handleGameRestartClick}>Restart</button>
+            <button onClick={handleNewGameClick}>Restart</button>
           ) : null}
         </div>
-        <Board global={global} />
+        <Board />
         <br />
       </div>
     </BoardContext.Provider>
diff --git a/src/components/Board.tsx b/src/components/Board.tsx
index 57bb048..174c32b 100644
--- a/src/components/Board.tsx
+++ b/src/components/Board.tsx
@@ -2,15 +2,18 @@ import './Board.css';
 import { useContext, useState } from 'react';
 import { BoardContext, BoardContextInterface } from '../App.tsx';
 
-interface Global {
-  rows: number;
-  cols: number;
-  mines: number;
-}
-const Board = ({ global }: { global: Global }) => {
+const Board = () => {
   const tmpBoardContext = useContext(BoardContext);
-  const { gameId, setAttributeCount, gameResult, setGameResult } =
-    tmpBoardContext as BoardContextInterface;
+  const {
+    gameId,
+    setAttributeCount,
+    gameResult,
+    setGameResult,
+    rows,
+    cols,
+    mines,
+    setCurrentMines,
+  } = tmpBoardContext as BoardContextInterface;
 
   type Board = Array<Array<cell>>;
   const [board, setBoard] = useState<Board>([]);
@@ -79,11 +82,7 @@ const Board = ({ global }: { global: Global }) => {
     };
   }
 
-  const buildBoard = (
-    rows = global.rows,
-    cols = global.cols,
-    mines = global.mines,
-  ) => {
+  const buildBoard = (rows: number, cols: number, mines: number) => {
     const emptyBoard = generateEmptyBoard(rows, cols);
 
     const minedBoard = placeMines(rows, cols, mines, emptyBoard);
@@ -98,10 +97,7 @@ const Board = ({ global }: { global: Global }) => {
     setBoard(minedBoard);
   };
 
-  const generateEmptyBoard = (
-    rows = global.rows,
-    cols = global.cols,
-  ): Board => {
+  const generateEmptyBoard = (rows: number, cols: number): Board => {
     const grid = [];
     for (let row = 0; row < rows; row++) {
       const rowArray = [];
@@ -119,14 +115,13 @@ const Board = ({ global }: { global: Global }) => {
     mines: number,
     board: Board,
   ) => {
+    setCurrentMines(mines);
     const updatedBoard = board;
 
     while (mines > 0) {
       const randRow = randInRange(0, rows - 1);
       const randCol = randInRange(0, cols - 1);
 
-      // console.log('placing mine at:', randRow, randCol);
-      // mines--;
       if (!updatedBoard[randRow][randCol].mine) {
         updatedBoard[randRow][randCol].setMined();
         mines--;
@@ -153,7 +148,7 @@ const Board = ({ global }: { global: Global }) => {
 
     const hiddenCount = board.length * board[0].length - revealedCount;
 
-    if (hiddenCount === global.mines) {
+    if (hiddenCount === mines) {
       setGameResult('win');
     }
 
@@ -263,7 +258,7 @@ const Board = ({ global }: { global: Global }) => {
 
   // Build new boards when necessary
   if (renderedGame !== gameId) {
-    buildBoard();
+    buildBoard(rows, cols, mines);
     setRenderedGame(gameId);
   }