fix: address Copilot review comments

- ChessPosition: include all fields in equals/hashCode
- AcceptedGamesRegistry: add thread safety with synchronized
- ChessEventBroadcaster: use valid filter for connection trigger
- ChessEventBroadcaster: fix misleading relayResults
- Remove println debug logging from ChessSubscription/Broadcaster
- UserProfileScreen: use proper JSON parsing via MetadataEvent

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

amethyst/src/main/java/com/vitorpamplona/amethyst/model/nip64Chess/ChessAction.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/model/topNavFeeds/FeedTopNavFilterState.kt

@@ -89,6 +89,7 @@ class FeedTopNavFilterState(
             CHESS -> {
                 ChessFeedFlow(followsRelays, proxyRelays)
             }
+
             else -> {
                 val note = LocalCache.checkGetOrCreateAddressableNote(listName)
                 if (note != null) {

amethyst/src/main/java/com/vitorpamplona/amethyst/model/topNavFeeds/chess/ChessFeedFlow.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/model/topNavFeeds/chess/ChessTopNavFilter.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/model/topNavFeeds/chess/ChessTopNavPerRelayFilter.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/model/topNavFeeds/chess/ChessTopNavPerRelayFilterSet.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt

@@ -925,6 +925,7 @@ private fun RenderNoteRow(
                 nav,
             )
         }
+
         is LiveChessGameChallengeEvent -> {
             RenderLiveChessChallenge(
                 baseNote,
@@ -933,6 +934,7 @@ private fun RenderNoteRow(
                 nav,
             )
         }
+
         is LiveChessGameEndEvent -> {
             RenderLiveChessGameEnd(
                 baseNote,
@@ -941,6 +943,7 @@ private fun RenderNoteRow(
                 nav,
             )
         }
+
         is ClassifiedsEvent -> {
             RenderClassifieds(
                 noteEvent,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/types/Chess.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -107,8 +107,12 @@ fun RenderLiveChessChallenge(
 
     val borderColor =
         when {
-            isOpenChallenge -> Color(0xFF4CAF50) // Green for open
-            isIncomingChallenge -> Color(0xFFFFA726) // Orange for incoming
+            isOpenChallenge -> Color(0xFF4CAF50)
+
+            // Green for open
+            isIncomingChallenge -> Color(0xFFFFA726)
+
+            // Orange for incoming
             else -> MaterialTheme.colorScheme.outline // Gray for sent
         }
 
@@ -191,7 +195,7 @@ fun RenderLiveChessChallenge(
                                     gameId = gameId,
                                     challengerPubkey = challengerPubkey,
                                     challengerDisplayName = note.author?.toBestDisplayName(),
-                                    challengerAvatarUrl = note.author?.info?.profilePicture(),
+                                    challengerAvatarUrl = note.author?.profilePicture(),
                                     opponentPubkey = event.opponentPubkey(),
                                     challengerColor = event.playerColor() ?: ChessColor.WHITE,
                                     createdAt = event.createdAt,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/AndroidChessAdapter.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -398,12 +398,11 @@ class AndroidRelayFetcher(
 class AndroidMetadataProvider : IUserMetadataProvider {
     override fun getDisplayName(pubkey: String): String {
         val user = LocalCache.getOrCreateUser(pubkey)
-        return user.info?.bestName()
-            ?: user.pubkeyDisplayHex()
+        return user.toBestDisplayName()
     }
 
     override fun getPictureUrl(pubkey: String): String? {
         val user = LocalCache.getOrCreateUser(pubkey)
-        return user.info?.profilePicture()
+        return user.profilePicture()
     }
 }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/ChessGameScreen.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -213,9 +213,11 @@ fun ChessGameScreen(
                             is ChessBroadcastStatus.Failed -> {
                                 // Could implement retry logic here
                             }
+
                             is ChessBroadcastStatus.Desynced -> {
                                 chessViewModel.forceRefresh()
                             }
+
                             else -> { }
                         }
                     },
@@ -240,6 +242,7 @@ fun ChessGameScreen(
                     }
                 }
             }
+
             gameState == null -> {
                 // Game not found - show error with back button
                 Column(
@@ -286,6 +289,7 @@ fun ChessGameScreen(
                     }
                 }
             }
+
             else -> {
                 // Resolve opponent display name
                 val opponentDisplayName =

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/ChessLobbyScreen.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/ChessSubscription.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/ChessViewModelFactory.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/ChessViewModelNew.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/NewChessGameButton.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chess/dal/ChessFeedFilter.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/HomeScreen.kt

@@ -250,9 +250,11 @@ fun HomeScreenFloatingButton(
                 is LocationState.LocationResult.Loading -> { }
             }
         }
+
         CHESS -> {
             NewChessGameButton(accountViewModel, nav)
         }
+
         else -> {
             NewNoteButton(nav)
         }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/NewChessGameButton.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/datasource/nip64Chess/FilterHomePostsByChess.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/AcceptedGamesRegistry.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -29,19 +29,29 @@ package com.vitorpamplona.amethyst.commons.chess
  */
 object AcceptedGamesRegistry {
     private val acceptedGameIds = mutableSetOf<String>()
+    private val lock = Any()
 
     fun markAsAccepted(gameId: String) {
+        synchronized(lock) {
             acceptedGameIds.add(gameId)
         }
+    }
 
-    fun wasAccepted(gameId: String): Boolean = acceptedGameIds.contains(gameId)
+    fun wasAccepted(gameId: String): Boolean =
+        synchronized(lock) {
+            acceptedGameIds.contains(gameId)
+        }
 
     fun clear() {
+        synchronized(lock) {
             acceptedGameIds.clear()
         }
+    }
 
     /** Remove old entries - call periodically to prevent memory leak */
     fun clearOldEntries(keepGameIds: Set<String>) {
+        synchronized(lock) {
             acceptedGameIds.retainAll(keepGameIds)
         }
     }
+}

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessBoard.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessBroadcastBanner.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -149,13 +149,18 @@ fun ChessBroadcastBanner(
 @Composable
 private fun getStatusBackgroundColor(status: ChessBroadcastStatus): Color =
     when (status) {
-        is ChessBroadcastStatus.Failed, is ChessBroadcastStatus.Desynced ->
+        is ChessBroadcastStatus.Failed, is ChessBroadcastStatus.Desynced -> {
             MaterialTheme.colorScheme.errorContainer
-        is ChessBroadcastStatus.Success ->
+        }
+
+        is ChessBroadcastStatus.Success -> {
             MaterialTheme.colorScheme.primaryContainer
-        else ->
+        }
+
+        else -> {
             MaterialTheme.colorScheme.surfaceContainer
         }
+    }
 
 private fun getStatusIcon(status: ChessBroadcastStatus): ImageVector =
     when (status) {
@@ -171,15 +176,22 @@ private fun getStatusIcon(status: ChessBroadcastStatus): ImageVector =
 @Composable
 private fun getStatusIconColor(status: ChessBroadcastStatus): Color =
     when (status) {
-        is ChessBroadcastStatus.Failed, is ChessBroadcastStatus.Desynced ->
+        is ChessBroadcastStatus.Failed, is ChessBroadcastStatus.Desynced -> {
             MaterialTheme.colorScheme.error
-        is ChessBroadcastStatus.Success ->
+        }
+
+        is ChessBroadcastStatus.Success -> {
             MaterialTheme.colorScheme.primary
-        is ChessBroadcastStatus.WaitingForOpponent ->
+        }
+
+        is ChessBroadcastStatus.WaitingForOpponent -> {
             MaterialTheme.colorScheme.secondary
-        else ->
+        }
+
+        else -> {
             MaterialTheme.colorScheme.primary
         }
+    }
 
 private fun getStatusText(status: ChessBroadcastStatus): String =
     when (status) {
@@ -205,11 +217,14 @@ private fun getStatusDetail(status: ChessBroadcastStatus): String =
 @Composable
 private fun getStatusDetailColor(status: ChessBroadcastStatus): Color =
     when (status) {
-        is ChessBroadcastStatus.Failed, is ChessBroadcastStatus.Desynced ->
+        is ChessBroadcastStatus.Failed, is ChessBroadcastStatus.Desynced -> {
             MaterialTheme.colorScheme.error
-        else ->
+        }
+
+        else -> {
             MaterialTheme.colorScheme.primary
         }
+    }
 
 private fun getStatusProgress(status: ChessBroadcastStatus): Float? =
     when (status) {

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessConfig.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessEventCollector.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessEventPolling.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessGameLoader.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -126,7 +126,10 @@ object ChessGameLoader {
                     LoadGameResult.Error("Failed to convert reconstructed state to live state")
                 }
             }
-            is ReconstructionResult.Error -> LoadGameResult.Error(result.message)
+
+            is ReconstructionResult.Error -> {
+                LoadGameResult.Error(result.message)
+            }
         }
     }
 

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessGameViewer.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessLobbyCards.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -301,7 +301,10 @@ fun CompletedGameCard(
     val resultColor =
         when {
             isDraw -> MaterialTheme.colorScheme.onSurfaceVariant
-            didUserWin -> Color(0xFF4CAF50) // Green
+
+            didUserWin -> Color(0xFF4CAF50)
+
+            // Green
             else -> Color(0xFFF44336) // Red
         }
 

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessLobbyLogic.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -389,6 +389,7 @@ class ChessLobbyLogic(
                     state.setBroadcastStatus(ChessBroadcastStatus.Idle)
                     state.setError(null)
                 }
+
                 is LoadGameResult.Error -> {
                     state.setError("Failed to load game: ${result.message}")
                     state.setBroadcastStatus(ChessBroadcastStatus.Idle)
@@ -518,6 +519,7 @@ class ChessLobbyLogic(
                     // Auto-select the game for Desktop (Android uses route navigation)
                     state.selectGame(startEventId)
                 }
+
                 is LoadGameResult.Error -> {
                     state.setError("Failed to load game: ${result.message}")
                     state.setBroadcastStatus(ChessBroadcastStatus.Idle)
@@ -549,6 +551,7 @@ class ChessLobbyLogic(
                     state.setBroadcastStatus(ChessBroadcastStatus.Idle)
                     state.setError(null)
                 }
+
                 is LoadGameResult.Error -> {
                     // Check again if game was added while we were fetching
                     // (e.g., by acceptChallenge completing in parallel)
@@ -582,6 +585,7 @@ class ChessLobbyLogic(
             is LoadGameResult.Success -> {
                 state.replaceGameState(startEventId, result.liveState)
             }
+
             is LoadGameResult.Error -> {
                 // Don't overwrite error for periodic refresh failures
             }
@@ -754,6 +758,7 @@ class ChessLobbyLogic(
                         pollingDelegate.addGameId(startEventId)
                     }
                 }
+
                 is LoadGameResult.Error -> {
                     // Failed to load game - continue with others
                 }

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessLobbyState.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessPieceVectors.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessRelayFetchHelper.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessSyncBanner.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/IUserMetadataProvider.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/InteractiveChessBoard.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/LiveChessGame.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -266,15 +266,25 @@ fun LiveChessGameScreen(
 
                 // Show appropriate controls based on game state
                 when {
-                    gameStatus is GameStatus.Finished ->
+                    gameStatus is GameStatus.Finished -> {
                         GameEndInfo(
                             result = (gameStatus as GameStatus.Finished).result,
                             playerColor = gameState.playerColor,
                             isSpectator = isSpectator,
                         )
-                    gameState.isPendingChallenge -> PendingChallengeInfo()
-                    isSpectator -> SpectatorInfo()
-                    else -> GameControls(onResign = onResign)
+                    }
+
+                    gameState.isPendingChallenge -> {
+                        PendingChallengeInfo()
+                    }
+
+                    isSpectator -> {
+                        SpectatorInfo()
+                    }
+
+                    else -> {
+                        GameControls(onResign = onResign)
+                    }
                 }
             }
         }
@@ -422,6 +432,7 @@ private fun GameInfoHeader(
                     color = MaterialTheme.colorScheme.onSurfaceVariant,
                 )
             }
+
             isSpectator -> {
                 Text(
                     text = "Spectating",
@@ -437,6 +448,7 @@ private fun GameInfoHeader(
                     color = MaterialTheme.colorScheme.onSurfaceVariant,
                 )
             }
+
             else -> {
                 Text(
                     text = "vs $opponentName",
@@ -456,17 +468,26 @@ private fun GameInfoHeader(
                         val resultText =
                             when {
                                 result == GameResult.DRAW -> "Draw"
+
                                 (result == GameResult.WHITE_WINS && playerColor == Color.WHITE) ||
                                     (result == GameResult.BLACK_WINS && playerColor == Color.BLACK) -> "You won!"
+
                                 else -> "You lost"
                             }
                         val resultColor =
                             when {
-                                result == GameResult.DRAW -> MaterialTheme.colorScheme.secondary
+                                result == GameResult.DRAW -> {
+                                    MaterialTheme.colorScheme.secondary
+                                }
+
                                 (result == GameResult.WHITE_WINS && playerColor == Color.WHITE) ||
-                                    (result == GameResult.BLACK_WINS && playerColor == Color.BLACK) ->
+                                    (result == GameResult.BLACK_WINS && playerColor == Color.BLACK) -> {
                                     ComposeColor(0xFF4CAF50)
-                                else -> MaterialTheme.colorScheme.error
+                                }
+
+                                else -> {
+                                    MaterialTheme.colorScheme.error
+                                }
                             }
                         Text(
                             text = resultText,
@@ -475,6 +496,7 @@ private fun GameInfoHeader(
                             fontWeight = FontWeight.Bold,
                         )
                     }
+
                     else -> {
                         val turnText =
                             if (currentTurn == playerColor) {
@@ -685,21 +707,26 @@ private fun GameEndOverlay(
                     }
                 Quadruple("", "Game Over", winnerText, MaterialTheme.colorScheme.surfaceVariant)
             }
-            playerWon ->
+
+            playerWon -> {
                 Quadruple(
                     "",
                     "Victory!",
                     "Congratulations!",
                     ComposeColor(0xFF4CAF50).copy(alpha = 0.95f),
                 )
-            isDraw ->
+            }
+
+            isDraw -> {
                 Quadruple(
                     "",
                     "Draw",
                     "Game ended in a draw",
                     MaterialTheme.colorScheme.surfaceVariant,
                 )
-            else ->
+            }
+
+            else -> {
                 Quadruple(
                     "",
                     "Defeat",
@@ -707,6 +734,7 @@ private fun GameEndOverlay(
                     ComposeColor(0xFFE57373).copy(alpha = 0.95f),
                 )
             }
+        }
 
     // Animated visibility
     AnimatedVisibility(
@@ -828,27 +856,47 @@ private fun GameEndInfo(
 ) {
     val resultText =
         when {
-            isSpectator ->
+            isSpectator -> {
                 when (result) {
                     GameResult.WHITE_WINS -> "White wins"
                     GameResult.BLACK_WINS -> "Black wins"
                     GameResult.DRAW -> "Draw"
                     GameResult.IN_PROGRESS -> "In progress"
                 }
-            result == GameResult.DRAW -> "Game drawn"
+            }
+
+            result == GameResult.DRAW -> {
+                "Game drawn"
+            }
+
             (result == GameResult.WHITE_WINS && playerColor == Color.WHITE) ||
-                (result == GameResult.BLACK_WINS && playerColor == Color.BLACK) -> "You won!"
-            else -> "You lost"
+                (result == GameResult.BLACK_WINS && playerColor == Color.BLACK) -> {
+                "You won!"
+            }
+
+            else -> {
+                "You lost"
+            }
         }
 
     val backgroundColor =
         when {
-            isSpectator -> MaterialTheme.colorScheme.surfaceVariant
-            result == GameResult.DRAW -> MaterialTheme.colorScheme.secondaryContainer
+            isSpectator -> {
+                MaterialTheme.colorScheme.surfaceVariant
+            }
+
+            result == GameResult.DRAW -> {
+                MaterialTheme.colorScheme.secondaryContainer
+            }
+
             (result == GameResult.WHITE_WINS && playerColor == Color.WHITE) ||
-                (result == GameResult.BLACK_WINS && playerColor == Color.BLACK) ->
+                (result == GameResult.BLACK_WINS && playerColor == Color.BLACK) -> {
                 ComposeColor(0xFF4CAF50).copy(alpha = 0.3f)
-            else -> MaterialTheme.colorScheme.errorContainer.copy(alpha = 0.5f)
+            }
+
+            else -> {
+                MaterialTheme.colorScheme.errorContainer.copy(alpha = 0.5f)
+            }
         }
 
     Box(

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/MoveNavigator.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/PGNMetadata.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/subscription/ChessFilterBuilder.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/subscription/ChessSubscriptionController.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/subscription/ChessSubscriptionState.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/chess/subscription/ChessTimeWindows.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/data/UserMetadataCache.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/profile/ProfileBroadcastBanner.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/profile/ProfileBroadcastStatus.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

commons/src/jvmAndroid/kotlin/com/vitorpamplona/amethyst/commons/chess/ChessEventBroadcaster.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -67,21 +67,19 @@ class ChessEventBroadcaster(
         val targetRelays = ChessConfig.CHESS_RELAYS.map { NormalizedRelayUrl(it) }.toSet()
         val subId = newSubId()
 
-        println("[ChessEventBroadcaster] Broadcasting event ${event.id.take(8)} to ${targetRelays.size} relays")
-
         // Step 1: Check which relays are already connected
         val initialConnected = client.connectedRelaysFlow().value
         val alreadyConnected = targetRelays.intersect(initialConnected)
         val needsConnection = targetRelays - alreadyConnected
 
-        println("[ChessEventBroadcaster] Already connected: ${alreadyConnected.size}, needs connection: ${needsConnection.size}")
-
         // Step 2: If some relays need connection, open a subscription to trigger it
         if (needsConnection.isNotEmpty()) {
+            // Use a valid filter with recent since timestamp to trigger connection
+            // without expecting real results
             val dummyFilter =
                 Filter(
                     kinds = listOf(JesterProtocol.KIND),
-                    ids = listOf("trigger_connection_${System.currentTimeMillis()}"),
+                    since = (System.currentTimeMillis() / 1000) + 3600, // 1 hour in future = no results
                     limit = 1,
                 )
 
@@ -97,9 +95,7 @@ class ChessEventBroadcaster(
                     override fun onEose(
                         relay: NormalizedRelayUrl,
                         forFilters: List<Filter>?,
-                    ) {
-                        println("[ChessEventBroadcaster] EOSE from ${relay.url}")
-                    }
+                    ) { }
                 }
 
             // Open subscription to all target relays (triggers connection)
@@ -107,23 +103,21 @@ class ChessEventBroadcaster(
             client.openReqSubscription(subId, filterMap, listener)
 
             // Wait for relays to connect (poll with timeout)
-            val connected = waitForRelays(targetRelays, 5000L)
-            println("[ChessEventBroadcaster] After waiting: ${connected.size}/${targetRelays.size} connected")
+            waitForRelays(targetRelays, 5000L)
 
             // Close the dummy subscription
             client.close(subId)
         }
 
         // Step 3: Send the event and wait for OK responses
-        println("[ChessEventBroadcaster] Sending event with sendAndWaitForResponse...")
         val success = client.sendAndWaitForResponse(event, targetRelays, timeoutSeconds)
 
-        println("[ChessEventBroadcaster] Broadcast complete: success=$success")
-
+        // Note: sendAndWaitForResponse only returns aggregate success (any relay accepted)
+        // We don't have per-relay results, so relayResults is empty
         return BroadcastResult(
             success = success,
-            relayResults = targetRelays.associateWith { success },
-            message = if (success) "Event accepted by relay(s)" else "No relay accepted the event",
+            relayResults = emptyMap(),
+            message = if (success) "Event accepted by at least one relay" else "No relay accepted the event",
         )
     }
 

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/chess/ChessScreen.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/chess/DesktopChessAdapter.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/chess/DesktopChessEventCache.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/chess/DesktopChessViewModelNew.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/subscriptions/ChessSubscription.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -104,10 +104,7 @@ class DesktopChessSubscriptionController(
                     ) {
                         // Add chess events to local cache for persistence
                         if (event.kind in CHESS_EVENT_KINDS) {
-                            val isNew = DesktopChessEventCache.add(event)
-                            if (isNew) {
-                                println("[ChessSubscription] Cached new event: kind=${event.kind}, id=${event.id.take(8)}")
-                            }
+                            DesktopChessEventCache.add(event)
                         }
                         onEvent(event, isLive, relay, forFilters)
                     }

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/ui/UserProfileScreen.kt

@@ -201,14 +201,17 @@ fun UserProfileScreen(
                 relays = configuredRelays,
                 pubKeyHex = pubKeyHex,
                 onEvent = { event, _, _, _ ->
+                    if (event is MetadataEvent) {
                         try {
-                        val content = event.content
-                        displayName = extractJsonField(content, "display_name") ?: extractJsonField(content, "name")
-                        about = extractJsonField(content, "about")
-                        picture = extractJsonField(content, "picture")
+                            val metadata = event.contactMetaData()
+                            if (metadata != null) {
+                                displayName = metadata.displayName ?: metadata.name
+                                about = metadata.about
+                                picture = metadata.picture
+                            }
 
                             // Store MetadataEvent for editing (only for own profile)
-                        if (isOwnProfile && event is MetadataEvent) {
+                            if (isOwnProfile) {
                                 val current = latestMetadataEvent
                                 if (current == null || event.createdAt > current.createdAt) {
                                     latestMetadataEvent = event
@@ -217,6 +220,7 @@ fun UserProfileScreen(
                         } catch (e: Exception) {
                             // Ignore parse errors
                         }
+                    }
                 },
             )
         } else {
@@ -688,17 +692,6 @@ fun UserProfileScreen(
     }
 }
 
-/**
- * Simple JSON field extractor (not production-ready, just for demo).
- */
-private fun extractJsonField(
-    json: String,
-    field: String,
-): String? {
-    val regex = """"$field"\s*:\s*"([^"]*)"""".toRegex()
-    return regex.find(json)?.groupValues?.get(1)
-}
-
 /**
  * Follows a user by publishing an updated contact list event.
  */

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessEngine.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessGame.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessGameEvent.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessGameNameGenerator.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessMove.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessPosition.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -177,13 +177,19 @@ data class ChessPosition(
         if (other !is ChessPosition) return false
         return board.contentDeepEquals(other.board) &&
             activeColor == other.activeColor &&
-            moveNumber == other.moveNumber
+            moveNumber == other.moveNumber &&
+            castlingRights == other.castlingRights &&
+            enPassantSquare == other.enPassantSquare &&
+            halfMoveClock == other.halfMoveClock
     }
 
     override fun hashCode(): Int {
         var result = board.contentDeepHashCode()
         result = 31 * result + activeColor.hashCode()
         result = 31 * result + moveNumber
+        result = 31 * result + castlingRights.hashCode()
+        result = 31 * result + (enPassantSquare?.hashCode() ?: 0)
+        result = 31 * result + halfMoveClock
         return result
     }
 }

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessStateReconstructor.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -155,14 +155,21 @@ object ChessStateReconstructor {
                     val result = parseGameResult(gameResult)
                     GameStatus.Finished(result)
                 }
+
                 engine.isCheckmate() -> {
                     val winner = engine.getSideToMove().opposite()
                     GameStatus.Finished(
                         if (winner == Color.WHITE) GameResult.WHITE_WINS else GameResult.BLACK_WINS,
                     )
                 }
-                engine.isStalemate() -> GameStatus.Finished(GameResult.DRAW)
-                else -> GameStatus.InProgress
+
+                engine.isStalemate() -> {
+                    GameStatus.Finished(GameResult.DRAW)
+                }
+
+                else -> {
+                    GameStatus.InProgress
+                }
             }
 
         // Get the head event ID (for linking next move)

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/JesterEvents.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/LiveChessEvents.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/LiveChessGameEvents.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/LiveChessGameState.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -464,6 +464,7 @@ class LiveChessGameState(
                 _gameStatus.value = GameStatus.Finished(GameResult.getResultForWinner(winner))
                 // In a real implementation, you'd publish GameEnd event here
             }
+
             engine.isStalemate() -> {
                 _gameStatus.value = GameStatus.Finished(GameResult.DRAW)
                 // In a real implementation, you'd publish GameEnd event here

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip64Chess/PGNParser.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -258,11 +258,13 @@ object PGNParser {
                             val kingSide = move.toSquare.contains("g")
                             current.makeCastlingMove(kingSide)
                         }
+
                         move.fromSquare != null -> {
                             // Move with disambiguation (we can infer full source)
                             // For now, just use simplified move
                             makeSimplifiedMove(current, move)
                         }
+
                         else -> {
                             // Regular move
                             makeSimplifiedMove(current, move)

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessGameEventTest.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip64Chess/JesterEventTest.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip64Chess/PGNParserTest.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of

quartz/src/jvmAndroid/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessEngine.jvmAndroid.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -231,8 +231,14 @@ actual class ChessEngine {
                 val sameFile = ambiguous.any { it.from.file == fromSquare.file }
                 val sameRank = ambiguous.any { it.from.rank == fromSquare.rank }
                 when {
-                    !sameFile -> sb.append(fileChar(fromSquare))
-                    !sameRank -> sb.append(rankChar(fromSquare))
+                    !sameFile -> {
+                        sb.append(fileChar(fromSquare))
+                    }
+
+                    !sameRank -> {
+                        sb.append(rankChar(fromSquare))
+                    }
+
                     else -> {
                         sb.append(fileChar(fromSquare))
                         sb.append(rankChar(fromSquare))

quartz/src/jvmAndroidTest/kotlin/com/vitorpamplona/quartz/nip64Chess/ChessStateReconstructorTest.kt

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2025 Vitor Pamplona
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of