diff --git a/example/src/client/actions.ts b/example/src/client/actions.ts
index 6e2c34c..78bdd44 100644
--- a/example/src/client/actions.ts
+++ b/example/src/client/actions.ts
@@ -1,13 +1,21 @@
 // DO NOT MODIFY!
 // This file is generated by pyre.
-// Generated: 2026-01-20 12:25:24.
+// Generated: 2026-01-24 09:09:49.
 
 import { send } from 'pyre/client'
 
+export const playAgain = () => {
+  send({
+    type: 'action',
+    action: 'playAgain',
+    args: []
+  })
+}
+
 export const nameChange = (name: string) => {
   send({
     type: 'action',
-    action: 'name:change',
+    action: 'nameChange',
     args: [name]
   })
 }
diff --git a/example/src/client/board.tsx b/example/src/client/board.tsx
index 7908881..0d321a8 100644
--- a/example/src/client/board.tsx
+++ b/example/src/client/board.tsx
@@ -1,5 +1,5 @@
 import { define, createThemes } from 'forge'
-import { move, nameChange } from './actions'
+import { move, nameChange, playAgain } from './actions'
 import type { Game } from '../types'
 import { sessionId } from 'pyre/client'
 
@@ -271,6 +271,7 @@ const WinBanner = define('WinBanner', {
       <Root>
         <Title>{props.title}</Title>
         <Button onClick={() => window.location.href = '/'}>New Game</Button>
+        <Button onClick={playAgain}>Play Again</Button>
       </Root>
     )
   },
diff --git a/example/src/game.ts b/example/src/game.ts
index ffc1326..be63cad 100644
--- a/example/src/game.ts
+++ b/example/src/game.ts
@@ -3,7 +3,7 @@ export { default } from 'pyre/server'
 
 import type { Game, WinLine, xo } from './types'
 
-const game: Game = {
+const newGame: Game = {
   phase: 'play',
   turn: 'x',
   players: {},
@@ -15,7 +15,7 @@ const game: Game = {
   ]
 }
 
-const action = setup(game, {
+const action = setup(newGame, {
   onJoin(game, session) {
     if (game.players[session]) return
 
@@ -31,7 +31,20 @@ const action = setup(game, {
   }
 })
 
-action('name:change', (ctx, name: string) => {
+action('playAgain', (ctx) => {
+  const game = ctx.game as Game
+  game.phase = 'play'
+  game.turn = 'x'
+  delete game.winLine
+  game.board = [
+    ['', '', ''],
+    ['', '', ''],
+    ['', '', ''],
+  ]
+  return game
+})
+
+action('nameChange', (ctx, name: string) => {
   const game = ctx.game as Game
   const player = game.players[ctx.session]
 
@@ -52,6 +65,9 @@ action('move', (ctx, x: number, y: number) => {
   if (game.board[x] === undefined || game.board[x][y] === undefined)
     throw new Error(`x,y not in board: ${x},${y}`)
 
+  if (game.board[x][y] !== '')
+    throw new Error(`someone already played at ${x},${y}`)
+
   if (game.turn !== player)
     throw new Error('not your turn!')