diff --git a/backend/src/main/java/djmil/cordacheckers/api/GameProposalController.java b/backend/src/main/java/djmil/cordacheckers/api/GameProposalController.java
index 490f1d9..f209746 100644
--- a/backend/src/main/java/djmil/cordacheckers/api/GameProposalController.java
+++ b/backend/src/main/java/djmil/cordacheckers/api/GameProposalController.java
@@ -50,7 +50,7 @@ public class GameProposalController {
                 gpSender,
                 gpReceiver,
                 gpReceiverColor,
-                // gpRequest.board() // GiteaIssue #3: use provided board configuration
+                gpRequest.board(),
                 gpRequest.message());
 
         URI locationOfNewGameProposal = ucb
diff --git a/webapp/src/components/Checkers.jsx b/webapp/src/components/Checkers.jsx
index be54ea1..52ed697 100644
--- a/webapp/src/components/Checkers.jsx
+++ b/webapp/src/components/Checkers.jsx
@@ -65,102 +65,103 @@ export function Player({ color, name }) {
 /*
  * Board
  */
-export function Board({ game }) {
+export function Board({ game, onClick }) {
+    const board = (game && game.board && typeof game.board === 'object') ? game.board : defaultBoard;
 
-    const board = (game && game.board && typeof game.board === 'object') ? game.board : defaultBoard();
+    const BlackTile = () => {
+        return <div className='Tile black' />
+    }
+
+    const WhiteTile = ({ id }) => {
+        const stone = board[id];
+        const isInteractive = (typeof onClick === 'function') ? ' interactive' : '';
+
+        return (
+            <div className={'Tile white' + isInteractive} onClick={() => isInteractive && onClick(id)}>
+                <Stone color={stone?.color} type={stone?.type} />
+            </div>
+        );
+    }
 
     return <div className='Board'>
         <div className='row'>
-            <BlackTile /> <WhiteTile id={1} stone={board[1]} />
-            <BlackTile /> <WhiteTile id={2} stone={board[2]} />
-            <BlackTile /> <WhiteTile id={3} stone={board[3]} />
-            <BlackTile /> <WhiteTile id={4} stone={board[4]} />
+            <BlackTile /> <WhiteTile id={1} />
+            <BlackTile /> <WhiteTile id={2} />
+            <BlackTile /> <WhiteTile id={3} />
+            <BlackTile /> <WhiteTile id={4} />
         </div>
         <div className='row'>
-            <WhiteTile id={5} stone={board[5]} /> <BlackTile />
-            <WhiteTile id={6} stone={board[6]} /> <BlackTile />
-            <WhiteTile id={7} stone={board[7]} /> <BlackTile />
-            <WhiteTile id={8} stone={board[8]} /> <BlackTile />
+            <WhiteTile id={5} /> <BlackTile />
+            <WhiteTile id={6} /> <BlackTile />
+            <WhiteTile id={7} /> <BlackTile />
+            <WhiteTile id={8} /> <BlackTile />
         </div>
         <div className='row'>
-            <BlackTile /> <WhiteTile id={9} stone={board[9]} />
-            <BlackTile /> <WhiteTile id={10} stone={board[10]} />
-            <BlackTile /> <WhiteTile id={11} stone={board[11]} />
-            <BlackTile /> <WhiteTile id={12} stone={board[12]} />
+            <BlackTile /> <WhiteTile id={9} />
+            <BlackTile /> <WhiteTile id={10} />
+            <BlackTile /> <WhiteTile id={11} />
+            <BlackTile /> <WhiteTile id={12} />
         </div>
         <div className='row'>
-            <WhiteTile id={13} stone={board[13]} /> <BlackTile />
-            <WhiteTile id={14} stone={board[14]} /> <BlackTile />
-            <WhiteTile id={15} stone={board[15]} /> <BlackTile />
-            <WhiteTile id={16} stone={board[16]} /> <BlackTile />
+            <WhiteTile id={13} /> <BlackTile />
+            <WhiteTile id={14} /> <BlackTile />
+            <WhiteTile id={15} /> <BlackTile />
+            <WhiteTile id={16} /> <BlackTile />
         </div>
 
         <div className='row'>
-            <BlackTile /> <WhiteTile id={17} stone={board[17]} />
-            <BlackTile /> <WhiteTile id={18} stone={board[18]} />
-            <BlackTile /> <WhiteTile id={19} stone={board[19]} />
-            <BlackTile /> <WhiteTile id={20} stone={board[20]} />
+            <BlackTile /> <WhiteTile id={17} />
+            <BlackTile /> <WhiteTile id={18} />
+            <BlackTile /> <WhiteTile id={19} />
+            <BlackTile /> <WhiteTile id={20} />
         </div>
         <div className='row'>
-            <WhiteTile id={21} stone={board[21]} /> <BlackTile />
-            <WhiteTile id={22} stone={board[22]} /> <BlackTile />
-            <WhiteTile id={23} stone={board[23]} /> <BlackTile />
-            <WhiteTile id={24} stone={board[24]} /> <BlackTile />
+            <WhiteTile id={21} /> <BlackTile />
+            <WhiteTile id={22} /> <BlackTile />
+            <WhiteTile id={23} /> <BlackTile />
+            <WhiteTile id={24} /> <BlackTile />
         </div>
         <div className='row'>
-            <BlackTile /> <WhiteTile id={25} stone={board[25]} />
-            <BlackTile /> <WhiteTile id={26} stone={board[26]} />
-            <BlackTile /> <WhiteTile id={27} stone={board[27]} />
-            <BlackTile /> <WhiteTile id={28} stone={board[28]} />
+            <BlackTile /> <WhiteTile id={25} />
+            <BlackTile /> <WhiteTile id={26} />
+            <BlackTile /> <WhiteTile id={27} />
+            <BlackTile /> <WhiteTile id={28} />
         </div>
         <div className='row'>
-            <WhiteTile id={29} stone={board[29]} /> <BlackTile />
-            <WhiteTile id={30} stone={board[30]} /> <BlackTile />
-            <WhiteTile id={31} stone={board[31]} /> <BlackTile />
-            <WhiteTile id={32} stone={board[32]} /> <BlackTile />
+            <WhiteTile id={29} /> <BlackTile />
+            <WhiteTile id={30} /> <BlackTile />
+            <WhiteTile id={31} /> <BlackTile />
+            <WhiteTile id={32} /> <BlackTile />
         </div>
     </div>
 }
 
-function defaultBoard() {
-    return {
-        1: { color: "BLACK", type: "MAN" },
-        2: { color: "BLACK", type: "MAN" },
-        3: { color: "BLACK", type: "MAN" },
-        4: { color: "BLACK", type: "MAN" },
-        5: { color: "BLACK", type: "MAN" },
-        6: { color: "BLACK", type: "MAN" },
-        7: { color: "BLACK", type: "MAN" },
-        8: { color: "BLACK", type: "MAN" },
-        9: { color: "BLACK", type: "MAN" },
-        10: { color: "BLACK", type: "MAN" },
-        11: { color: "BLACK", type: "MAN" },
-        12: { color: "BLACK", type: "MAN" },
-        21: { color: "WHITE", type: "MAN" },
-        22: { color: "WHITE", type: "MAN" },
-        23: { color: "WHITE", type: "MAN" },
-        24: { color: "WHITE", type: "MAN" },
-        25: { color: "WHITE", type: "MAN" },
-        26: { color: "WHITE", type: "MAN" },
-        27: { color: "WHITE", type: "MAN" },
-        28: { color: "WHITE", type: "MAN" },
-        29: { color: "WHITE", type: "MAN" },
-        30: { color: "WHITE", type: "MAN" },
-        31: { color: "WHITE", type: "MAN" },
-        32: { color: "WHITE", type: "MAN" },
-    }
+const blackMan = { color: Color.black, type: 'MAN' };
+const blackKing = { color: Color.black, type: 'KING' };
+const whiteMan = { color: Color.white, type: 'MAN' };
+const whiteKing = { color: Color.white, type: 'KING' };
+
+export const defaultBoard = {
+    1: blackMan, 2: blackMan, 3: blackMan, 4: blackMan, 5: blackMan, 6: blackMan, 7: blackMan, 8: blackMan, 9: blackMan, 10: blackMan, 11: blackMan, 12: blackMan,
+    21: whiteMan, 22: whiteMan, 23: whiteMan, 24: whiteMan, 25: whiteMan, 26: whiteMan, 27: whiteMan, 28: whiteMan, 29: whiteMan, 30: whiteMan, 31: whiteMan, 32: whiteMan,
 }
 
-function WhiteTile({ id, stone }) {
-    return (
-        <div className='Tile white'
-            onClick={() => console.log('click', id)}
-        >
-            <Stone color={stone?.color} type={stone?.type} />
-        </div>
-    );
-}
+export function nextStone(currentStone) {
+    const color = currentStone?.color;
+    const type = currentStone?.type;
 
-function BlackTile() {
-    return <div className='Tile black' />
+    if (!color || !type)
+        return blackMan;
+
+    if (color === Color.black && type === 'MAN')
+        return blackKing;
+
+    if (color === Color.black && type === 'KING')
+        return whiteMan;
+
+    if (color === Color.white && type === 'MAN')
+        return whiteKing;
+
+    if (color === Color.white && type === 'KING')
+        return null;
 }
\ No newline at end of file
diff --git a/webapp/src/container/Games.jsx b/webapp/src/container/Games.jsx
index 38406f4..fd8d594 100644
--- a/webapp/src/container/Games.jsx
+++ b/webapp/src/container/Games.jsx
@@ -26,7 +26,11 @@ export default function Games({ context: { gamesReducer, gamesApi }, players })
         <div className='right-side'>
           <ActionPanel gamesApi={gamesApi} />
           {/* <GameMessage /> */}
-          <GameBoard username={players.currentUser} />
+          <GameBoard 
+            username={players.currentUser}
+            onNewGameBoardStone={(board) => dispatchGames({ type: 'nextNewGame', board })}
+            onActiveGameMove={(uuid, from, to) => console.log(uuid, 'move', from, '->', to)}
+          />
           <Message2Opponent dispatchGames={dispatchGames} />
         </div>
 
diff --git a/webapp/src/container/games/GameBoard.css b/webapp/src/container/games/GameBoard.css
index bd5e884..2c90743 100644
--- a/webapp/src/container/games/GameBoard.css
+++ b/webapp/src/container/games/GameBoard.css
@@ -14,7 +14,7 @@
     margin-top: -1px;
 }
 
-.GameBoard .Tile.white:hover {
+.GameBoard .Tile.white.interactive:hover {
     background-color:azure;
 }
 
diff --git a/webapp/src/container/games/GameBoard.jsx b/webapp/src/container/games/GameBoard.jsx
index dad8c10..22043f9 100644
--- a/webapp/src/container/games/GameBoard.jsx
+++ b/webapp/src/container/games/GameBoard.jsx
@@ -1,35 +1,58 @@
-import React, { useContext } from 'react';
+import React, { useContext, useState } from 'react';
 import { useLocation, matchPath } from 'react-router-dom';
 import { GamesContext } from '../../context/games';
 
-import { Color, Player, Board } from '../../components/Checkers';
+import { Color, Player, Board, nextStone } from '../../components/Checkers';
 import './GameBoard.css';
 
-export default function GameBoard({ username }) {
+export default function GameBoard({ username, onNewGameBoardStone, onActiveGameMove }) {
   const games = useContext(GamesContext);
   const { pathname } = useLocation();
+  const [startId, setStartId] = useState(null);
 
-  const game = (() => {
+  const onClick_NewGame = (cellId) => {
+    let nextBoard = { ...games.newGame.board };
+    nextBoard[cellId] = nextStone(nextBoard[cellId]);
+
+    onNewGameBoardStone(nextBoard);
+  }
+
+  const onClick_ActiveGame = (cellId) => {
+    if (startId === cellId)
+      return setStartId(null);
+
+    if (startId === null)
+      return setStartId(cellId);
+
+    if (game?.uuid)
+      onActiveGameMove(game.uuid, startId, cellId);
+
+    setStartId(null);
+  };
+
+  const [game, onClick] = (() => {
     if (matchPath('/games/new', pathname))
-      return gameFrom(games.newGame);
+      return [gameFrom(games.newGame), onClick_NewGame];
 
     if (matchPath('/games/proposal', pathname))
-      return games.findGame({ uuid: games.proposal.selectedUUID });
+      return [games.findGame({ uuid: games.proposal.selectedUUID }), null];
     else if (matchPath('/games/active', pathname))
-      return games.findGame({ uuid: games.active.selectedUUID });
+      return [games.findGame({ uuid: games.active.selectedUUID }), onClick_ActiveGame];
     else if (matchPath('/games/archive', pathname))
-      return games.findGame({ uuid: games.archive.selectedUUID });
+      return [games.findGame({ uuid: games.archive.selectedUUID }), null];
 
-    return {}; //  defaults
+    return [{}, null]; //  defaults
   })(); // <<-- Execute
 
   const opponentColor = Color.opposite(game?.myColor);
   const [opponentName, myName] = game?.opponentName ? [game.opponentName, username] : ['', ''];
 
+  const optionalOnClick = (onClick && game?.board) ? (id) => onClick(id) : null;
+
   return (
     <div className='GameBoard'>
       <Player color={opponentColor || Color.white} name={opponentName} />
-      <Board game={game} />
+      <Board game={game} onClick={optionalOnClick} />
       <Player color={game?.myColor || Color.black} name={myName} />
     </div>
   )
diff --git a/webapp/src/reducer/games.js b/webapp/src/reducer/games.js
index 379d4e8..71f20f7 100644
--- a/webapp/src/reducer/games.js
+++ b/webapp/src/reducer/games.js
@@ -1,5 +1,6 @@
 import { useReducer } from 'react';
 import { nextState } from '../util/StateHelper';
+import { defaultBoard } from '../components/Checkers';
 
 export const gamesInitialState = {
   gamesList: null,
@@ -7,7 +8,7 @@ export const gamesInitialState = {
   newGame: {
     opponentName: '',
     opponentColor: '',
-    board: null,
+    board: defaultBoard,
     message: '',
   },