diff --git a/ui/Dockerfile b/ui/Dockerfile
index 996fb37..4b535fe 100644
--- a/ui/Dockerfile
+++ b/ui/Dockerfile
@@ -5,6 +5,7 @@ COPY package-lock.json .
 RUN npm install
 
 FROM base as dependencies
+COPY utils /utils
 COPY pages /pages
 COPY public /public
 COPY styles /styles
diff --git a/ui/api/game.api.ts b/ui/api/game.api.ts
index ca4b769..018fb9b 100644
--- a/ui/api/game.api.ts
+++ b/ui/api/game.api.ts
@@ -1,5 +1,5 @@
 import wretch from "wretch";
-import { Cell } from "../types";
+import { Cell, Position } from "../types";
 
 const USER_ID_HEADER = "Player-id";
 
@@ -18,3 +18,27 @@ export const fetchGameState = async (
     cellWidth: response.board[0].length,
   };
 };
+
+export const submitMove = async (
+  playerId: string,
+  gameId: number,
+  piecePosition: Position,
+  movePosition: Position
+): Promise<{ cells: Cell[] }> => {
+  console.log(piecePosition, movePosition);
+  const response: { board: Cell[][] } = await wretch(`/api/game/${gameId}/move`)
+    .headers({
+      [USER_ID_HEADER]: playerId,
+    })
+    .body({
+      pieceRow: piecePosition.row,
+      pieceColumn: piecePosition.column,
+      moveRow: movePosition.row,
+      moveColumn: movePosition.column,
+    })
+    .post()
+    .json();
+  return {
+    cells: response.board.flat(),
+  };
+};
diff --git a/ui/components/board.tsx b/ui/components/board.tsx
index f6f4537..86432c7 100644
--- a/ui/components/board.tsx
+++ b/ui/components/board.tsx
@@ -1,25 +1,33 @@
-import React from "react";
+import React, { useState } from "react";
+import cn from "classnames";
 import { Cell } from "../types";
 import styles from "../styles/board.module.css";
 
 interface BoardProps {
   cells: Cell[];
   cellWidth: number;
+  focusedCellIndex?: number;
+  onCellClick: (index: number) => void;
 }
 
-const Board = (props: BoardProps) => {
-  return (
-    <div
-      className={styles.gridContainer}
-      style={{
-        gridTemplateColumns: `repeat(${props.cellWidth}, 1fr)`,
-      }}
-    >
-      {props.cells.map((cell) => (
-        <div className={styles.gridCell}>{cell.piece}</div>
-      ))}
-    </div>
-  );
-};
+const Board = (props: BoardProps) => (
+  <div
+    className={styles.gridContainer}
+    style={{
+      gridTemplateColumns: `repeat(${props.cellWidth}, 1fr)`,
+    }}
+  >
+    {props.cells.map((cell, i) => (
+      <button
+        className={cn(styles.gridCell, {
+          [styles.cellClicked]: i === props.focusedCellIndex,
+        })}
+        onClick={() => props.onCellClick(i)}
+      >
+        {cell.piece}
+      </button>
+    ))}
+  </div>
+);
 
 export default Board;
diff --git a/ui/components/game.tsx b/ui/components/game.tsx
index e6283d4..78e3c3a 100644
--- a/ui/components/game.tsx
+++ b/ui/components/game.tsx
@@ -1,19 +1,42 @@
 import React, { useState, useEffect } from "react";
-import { fetchGameState } from "../api/game.api";
+import { fetchGameState, submitMove } from "../api/game.api";
+import { convertIndexToPosition } from "../utils/position";
 import { Cell } from "../types";
 import Board from "./board";
 
+const DEFAULT_CLICKED_CELL = -1;
+
 interface GameProps {
   gameId: number;
+  playerId: string;
 }
 
 const Game = (props: GameProps) => {
   const [isLoading, setLoading] = useState(false);
-  const [cellWidth, setCellWidth] = useState(4);
+  const [cellWidth, setCellWidth] = useState(0);
   const [cells, setCells] = useState([] as Cell[]);
+  const [focusedCellIndex, setFocusedCellIndex] =
+    useState(DEFAULT_CLICKED_CELL);
+
+  const onCellClicked = (cellIndex: number): void => {
+    if (cellIndex === focusedCellIndex) {
+      setFocusedCellIndex(DEFAULT_CLICKED_CELL);
+      return;
+    } else if (focusedCellIndex === DEFAULT_CLICKED_CELL) {
+      setFocusedCellIndex(cellIndex);
+      return;
+    }
+    submitMove(
+      props.playerId,
+      props.gameId,
+      convertIndexToPosition(focusedCellIndex, cellWidth),
+      convertIndexToPosition(cellIndex, cellWidth)
+    );
+  };
+
   useEffect(() => {
     setLoading(true);
-    fetchGameState("red", props.gameId).then(
+    fetchGameState(props.playerId, props.gameId).then(
       ({ cells: cellList, cellWidth: width }) => {
         setCellWidth(width);
         setCells(cellList);
@@ -22,7 +45,14 @@ const Game = (props: GameProps) => {
     );
   }, [props.gameId]);
 
-  return <Board cellWidth={cellWidth} cells={cells} />;
+  return (
+    <Board
+      cellWidth={cellWidth}
+      cells={cells}
+      focusedCellIndex={focusedCellIndex}
+      onCellClick={onCellClicked}
+    />
+  );
 };
 
 export default Game;
diff --git a/ui/package-lock.json b/ui/package-lock.json
index 227dea1..074eedd 100644
--- a/ui/package-lock.json
+++ b/ui/package-lock.json
@@ -8,6 +8,7 @@
       "name": "ui",
       "version": "0.1.0",
       "dependencies": {
+        "classnames": "^2.3.1",
         "next": "12.1.0",
         "react": "17.0.2",
         "react-dom": "17.0.2",
@@ -528,6 +529,11 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
+    "node_modules/classnames": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/classnames/-/classnames-2.3.1.tgz",
+      "integrity": "sha512-OlQdbZ7gLfGarSqxesMesDa5uz7KFbID8Kpq/SxIoNGDqY8lSYs0D+hhtBXhcdB3rcbXArFr7vlHheLk1voeNA=="
+    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "dev": true,
@@ -2842,6 +2848,11 @@
         "supports-color": "^7.1.0"
       }
     },
+    "classnames": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/classnames/-/classnames-2.3.1.tgz",
+      "integrity": "sha512-OlQdbZ7gLfGarSqxesMesDa5uz7KFbID8Kpq/SxIoNGDqY8lSYs0D+hhtBXhcdB3rcbXArFr7vlHheLk1voeNA=="
+    },
     "color-convert": {
       "version": "2.0.1",
       "dev": true,
diff --git a/ui/package.json b/ui/package.json
index fe3cab8..f99fa4f 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -9,6 +9,7 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "classnames": "^2.3.1",
     "next": "12.1.0",
     "react": "17.0.2",
     "react-dom": "17.0.2",
diff --git a/ui/pages/index.tsx b/ui/pages/index.tsx
index 0b16e8e..28a32e3 100644
--- a/ui/pages/index.tsx
+++ b/ui/pages/index.tsx
@@ -11,7 +11,7 @@ const Home: NextPage = () => (
       <link rel="icon" href="/favicon.ico" />
     </Head>
     <main>
-      <Game gameId={1} />
+      <Game gameId={1} playerId="red" />
     </main>
   </div>
 );
diff --git a/ui/styles/board.module.css b/ui/styles/board.module.css
index ddf1ee2..3fb899c 100644
--- a/ui/styles/board.module.css
+++ b/ui/styles/board.module.css
@@ -5,4 +5,9 @@
 .gridCell {
   border: 1px solid black;
   padding-top: 100%; /* 100% is supposed to be 1:1 aspect ratio but it doesn't look like it */ 
+  background: 0;
+}
+
+.cellClicked {
+  border: 1px solid red;
 }
\ No newline at end of file
diff --git a/ui/types.ts b/ui/types.ts
index 774c563..16036cd 100644
--- a/ui/types.ts
+++ b/ui/types.ts
@@ -3,4 +3,9 @@ export interface Cell {
   terrain: boolean;
   hidden: boolean;
   empty: boolean;
+}
+
+export interface Position {
+  row: number;
+  column: number;
 }
\ No newline at end of file
diff --git a/ui/utils/position.ts b/ui/utils/position.ts
new file mode 100644
index 0000000..0361e65
--- /dev/null
+++ b/ui/utils/position.ts
@@ -0,0 +1,9 @@
+import { Position } from "../types";
+
+export const convertIndexToPosition = (
+  index: number,
+  cellWidth: number
+): Position => ({
+  row: Math.floor(index / cellWidth),
+  column: index % cellWidth,
+});