yep

Shogi.UI/Pages/Home/GameBoard/GameBoard.razor

@@ -1,9 +1,11 @@
 @using Shogi.Contracts.Api
+@using Shogi.Contracts.Socket;
 @using Shogi.Contracts.Types;
 @using System.Text.RegularExpressions;
 @inject IShogiApi ShogiApi
 @inject AccountState Account;
 @inject PromotePrompt PromotePrompt;
+@inject ShogiSocket ShogiSocket;
 
 @if (session == null)
 {
@@ -11,11 +13,11 @@
 }
 else if (isSpectating)
 {
-    <SpectatorGameBoard Session="session" />
+    <SpectatorGameBoard Session="session" OnRefetchSession="RefetchSession" />
 }
 else
 {
-    <SeatedGameBoard Perspective="perspective" Session="session" OnRefetchSession="RefetchSession" />
+    <SeatedGameBoard Perspective="perspective" Session="session" />
 }
 
 
@@ -27,6 +29,13 @@ else
     private WhichPlayer perspective;
     private bool isSpectating;
 
+    protected override void OnInitialized()
+    {
+        base.OnInitialized();
+        ShogiSocket.OnPlayerMoved += OnPlayerMoved_RefetchSession;
+        ShogiSocket.OnSessionJoined += 
+    }
+
     protected override async Task OnParametersSetAsync()
     {
         await RefetchSession();
@@ -34,7 +43,7 @@ else
 
     async Task RefetchSession()
     {
-         if (!string.IsNullOrWhiteSpace(SessionName))
+        if (!string.IsNullOrWhiteSpace(SessionName))
         {
             this.session = await ShogiApi.GetSession(SessionName);
             if (this.session != null)
@@ -44,9 +53,18 @@ else
                 this.perspective = accountId == session.Player2 ? WhichPlayer.Player2 : WhichPlayer.Player1;
                 this.isSpectating = !(accountId == this.session.Player1 || accountId == this.session.Player2);
                 Console.WriteLine($"IsSpectating - {isSpectating}. AccountId - {accountId}. Player1 - {this.session.Player1}. Player2 - {this.session.Player2}");
+
             }
+            StateHasChanged();
         }
     }
 
-
+    Task OnPlayerMoved_RefetchSession(PlayerHasMovedMessage args)
+    {
+        if (args.SessionName == SessionName)
+        {
+            return RefetchSession();
+        }
+        return Task.CompletedTask;
+    }
 }