Clean Gambit-style board - simple ANSI, no Rich markup

- Simple box drawing characters
- Direct ANSI escape codes (no Rich markup issues)
- Dots on dark squares, empty on light
- White pieces bright white, black pieces yellow
- Clean single-line cells like Gambit

src/shellmate/ssh/server.py

@@ -275,139 +275,108 @@ async def run_chess_game(process, session: TerminalSession, username: str, oppon
     except Exception as e:
         logger.warning(f"Stockfish not available: {e}")
     
-    # Unicode pieces - large and visible
+    # Unicode pieces
     PIECES = {
         'K': '♔', 'Q': '♕', 'R': '♖', 'B': '♗', 'N': '♘', 'P': '♙',
         'k': '♚', 'q': '♛', 'r': '♜', 'b': '♝', 'n': '♞', 'p': '♟',
     }
     
     def render_board():
+        """Clean Gambit-style board rendering - simple and elegant."""
         nonlocal status_msg
         session._update_size()
         session.clear()
         
-        writer = ProcessWriter(session)
-        console = Console(file=writer, width=session.width, height=session.height, 
-                         force_terminal=True, color_system="truecolor")
-        
-        # Decide on board size based on terminal
-        use_big = session.width >= 70 and session.height >= 35
-        
         lines = []
         
         # Title
         lines.append("")
-        lines.append("[bold bright_green]♔  S H E L L M A T E   C H E S S  ♔[/bold bright_green]")
+        lines.append("\033[1;32m♔  S H E L L M A T E  ♔\033[0m")
-        lines.append("[bright_blue]━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━[/bright_blue]")
         lines.append("")
         
-        if use_big:
+        # Column labels
-            # BIG BEAUTIFUL BOARD (5-char wide cells, 2 lines tall)
+        lines.append("     A   B   C   D   E   F   G   H")
-            col_labels = "        " + "".join(f"  {c}   " for c in "abcdefgh")
-            lines.append(f"[bold cyan]{col_labels}[/bold cyan]")
-            lines.append("[bright_blue]      ╔══════╤══════╤══════╤══════╤══════╤══════╤══════╤══════╗[/bright_blue]")
-            
-            for rank in range(7, -1, -1):
-                top_row = f"[bold cyan]  {rank + 1}   [/bold cyan][bright_blue]║[/bright_blue]"
-                bot_row = f"      [bright_blue]║[/bright_blue]"
-                
-                for file in range(8):
-                    square = chess.square(file, rank)
-                    piece = board.piece_at(square)
-                    is_light = (rank + file) % 2 == 1
-                    bg = "on grey30" if is_light else "on grey15"
-                    
-                    if piece:
-                        char = PIECES.get(piece.symbol(), '?')
-                        fg = "bold white" if piece.color == chess.WHITE else "bold bright_yellow"
-                        top_row += f"[{fg} {bg}]  {char}   [/{fg} {bg}]"
-                        bot_row += f"[{bg}]      [/{bg}]"
-                    else:
-                        top_row += f"[{bg}]      [/{bg}]"
-                        bot_row += f"[{bg}]      [/{bg}]"
-                    
-                    if file < 7:
-                        top_row += "[bright_blue]│[/bright_blue]"
-                        bot_row += "[bright_blue]│[/bright_blue]"
-                
-                top_row += f"[bright_blue]║[/bright_blue][bold cyan]  {rank + 1}[/bold cyan]"
-                bot_row += "[bright_blue]║[/bright_blue]"
-                lines.append(top_row)
-                lines.append(bot_row)
-                
-                if rank > 0:
-                    lines.append("[bright_blue]      ╟──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────╢[/bright_blue]")
-            
-            lines.append("[bright_blue]      ╚══════╧══════╧══════╧══════╧══════╧══════╧══════╧══════╝[/bright_blue]")
-            lines.append(f"[bold cyan]{col_labels}[/bold cyan]")
-        else:
-            # COMPACT BOARD (4-char wide cells)
-            col_labels = "      " + "".join(f" {c}  " for c in "abcdefgh")
-            lines.append(f"[bold cyan]{col_labels}[/bold cyan]")
-            lines.append("[bright_blue]    ╔════╤════╤════╤════╤════╤════╤════╤════╗[/bright_blue]")
-            
-            for rank in range(7, -1, -1):
-                row = f"[bold cyan] {rank + 1}  [/bold cyan][bright_blue]║[/bright_blue]"
-                
-                for file in range(8):
-                    square = chess.square(file, rank)
-                    piece = board.piece_at(square)
-                    is_light = (rank + file) % 2 == 1
-                    bg = "on grey30" if is_light else "on grey15"
-                    
-                    if piece:
-                        char = PIECES.get(piece.symbol(), '?')
-                        fg = "bold white" if piece.color == chess.WHITE else "bold bright_yellow"
-                        row += f"[{fg} {bg}] {char}  [/{fg} {bg}]"
-                    else:
-                        row += f"[{bg}]    [/{bg}]"
-                    
-                    if file < 7:
-                        row += "[bright_blue]│[/bright_blue]"
-                
-                row += f"[bright_blue]║[/bright_blue][bold cyan] {rank + 1}[/bold cyan]"
-                lines.append(row)
-                
-                if rank > 0:
-                    lines.append("[bright_blue]    ╟────┼────┼────┼────┼────┼────┼────┼────╢[/bright_blue]")
-            
-            lines.append("[bright_blue]    ╚════╧════╧════╧════╧════╧════╧════╧════╝[/bright_blue]")
-            lines.append(f"[bold cyan]{col_labels}[/bold cyan]")
         
+        # Top border
+        lines.append("   ┌───┬───┬───┬───┬───┬───┬───┬───┐")
+        
+        for rank in range(7, -1, -1):
+            row = f" \033[36m{rank + 1}\033[0m │"
+            
+            for file in range(8):
+                square = chess.square(file, rank)
+                piece = board.piece_at(square)
+                is_light = (rank + file) % 2 == 1
+                
+                if piece:
+                    char = PIECES.get(piece.symbol(), '?')
+                    # White pieces bright, black pieces yellow
+                    if piece.color == chess.WHITE:
+                        row += f" \033[1;37m{char}\033[0m │"
+                    else:
+                        row += f" \033[1;33m{char}\033[0m │"
+                else:
+                    # Dot for dark squares, space for light
+                    if is_light:
+                        row += "   │"
+                    else:
+                        row += " \033[90m·\033[0m │"
+            
+            row += f" \033[36m{rank + 1}\033[0m"
+            lines.append(row)
+            
+            # Row separator
+            if rank > 0:
+                lines.append("   ├───┼───┼───┼───┼───┼───┼───┼───┤")
+        
+        # Bottom border
+        lines.append("   └───┴───┴───┴───┴───┴───┴───┴───┘")
+        
+        # Column labels again
+        lines.append("     A   B   C   D   E   F   G   H")
         lines.append("")
         
         # Status
-        turn = "[bold white]White ♔[/bold white]" if board.turn == chess.WHITE else "[bold bright_yellow]Black ♚[/bold bright_yellow]"
+        if board.turn == chess.WHITE:
-        lines.append(f"  {turn} to move")
+            lines.append("   \033[1;37mWhite ♔\033[0m to move")
+        else:
+            lines.append("   \033[1;33mBlack ♚\033[0m to move")
         
         if board.is_check():
-            lines.append("  [bold red]⚠ CHECK! ⚠[/bold red]")
+            lines.append("   \033[1;31m⚠ CHECK! ⚠\033[0m")
         
         if move_history:
             last_moves = move_history[-5:]
-            lines.append(f"  [dim]Recent: {' '.join(last_moves)}[/dim]")
+            lines.append(f"   \033[90mRecent: {' '.join(last_moves)}\033[0m")
         
         if status_msg:
-            lines.append(f"  [bright_yellow]{status_msg}[/bright_yellow]")
+            lines.append(f"   \033[33m{status_msg}\033[0m")
             status_msg = ""
         
         lines.append("")
-        lines.append("  [green]Enter move (e.g. e2e4)[/green] [dim]│[/dim] [red]q[/red]uit [dim]│[/dim] [red]r[/red]esign")
+        lines.append("   \033[32mMove:\033[0m e2e4  \033[90m│\033[0m  \033[31mq\033[0muit  \033[90m│\033[0m  \033[31mr\033[0mesign")
         lines.append("")
         
-        # Vertical center
+        # Calculate centering
-        total_lines = len(lines)
+        board_width = 37  # Width of the board
-        top_pad = max(0, (session.height - total_lines - 2) // 2)
+        total_height = len(lines)
         
+        # Horizontal padding
+        left_pad = max(0, (session.width - board_width) // 2)
+        pad = " " * left_pad
+        
+        # Vertical centering
+        top_pad = max(0, (session.height - total_height) // 2)
+        
+        # Output
         for _ in range(top_pad):
-            console.print()
+            session.write("\r\n")
         
         for line in lines:
-            console.print(Align.center(Text.from_markup(line)))
+            session.write(pad + line + "\r\n")
         
         # Move prompt
-        pad = " " * max(0, (session.width - 20) // 2)
+        session.write(pad + "   \033[36mMove: \033[0m")
-        session.write(f"{pad}[cyan]Move: [/cyan]")
         session.show_cursor()
     
     render_board()