serrasqueiro · December 14, 2025 18:01
diff --git a/365chess_games.pgn b/365chess_games.pgn
 [Event "Saint Louis Blitz 2017"]
 [Site "Saint Louis USA"]
 [Date "2017.08.18"]
 [Round "12.3"]
 [White "Caruana, Fabiano"]
 [Black "Kasparov, Garry"]
 [Result "0-1"]
 [WhiteElo "2807"]
 [BlackElo "2812"]
 [ECO "B23"]

 1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. g3 g6 5. Bg2 Nc6 6. d3 Bg7 7. O-O O-O 8. a3  Rb8 9. Rb1 b6 10. b4 Bb7 11. h3 Nd7 12. Be3 Re8 13. Qd2 Ba8 14. f4 Rc8 15. g4 e6  16. f5 Nd4 17. Bxd4 cxd4 18. Nb5 exf5 19. gxf5 Ne5 20. Nbxd4 d5 21. Qf4 dxe4 22.  dxe4 Qc7 23. f6 Bf8 24. Rb3 Nc4 25. Rc3 a6 26. Qxc7 Rxc7 27. Nf4 b5 28. Nd5 Rcc8  29. Rd3 Bd6 30. Nb3 Bxd5 31. exd5 Re5 32. Nc5 a5 33. Rfd1 a4 34. Rf1 Rce8 35.  Rdf3 h5 36. Nd3 Re2 37. R3f2 R2e3 38. Rf3 Re2 39. R1f2 Kh7 40. Bf1 R2e4 41. Nc5  Re1 42. Kg2 Ne3+ 43. Kh1 Nxd5 44. Rd3 R8e5 45. Nd7 Rg5 46. Rff3 Bc7 47. Nc5 h4  48. Rd4 Bg3 49. Nd3 Ra1 50. Re4 Rxa3 51. Re7 Kg8 52. Re8+ Kh7 53. Rf8 Ra1 54.  Rxf7+ Kg8 55. Rg7+ Kf8 56. Ra7 Rf5 57. Rxf5 gxf5 58. Kg2 Ne3+ 59. Kf3 Nxf1 60.  Nc5 Re1 61. Kg2 Ne3+ 62. Kf3 Nc4 63. Ra6 Nd2+ 64. Kg2 Re2+ 65. Kh1 Rh2+ 0-1

diff --git a/README.md b/README.md
diff --git a/Caruana_vs_Kasparov_2017.pgn b/Caruana_vs_Kasparov_2017.pgn
 365chess_games.pgn
diff --git a/dump_svg_all.py b/dump_svg_all.py
 """ # dump_svg_all.py -- including variations.

 Generate SVGs for every move in a PGN game, including variation continuation.
 """

 import os
 import chess
 import chess.pgn
 import chess.svg

 SHOW_COORDINATES = True

 def main():
    pgn_path = "365chess_games.pgn"  # Caruana_vs_Kasparov_2017.pgn is a soft-link to that
    out_dir = "svgs_all_moves"
    show_coords = SHOW_COORDINATES
    exported = script(pgn_path, out_dir, show_coords)
    print(f"Exported {exported} SVG files to {out_dir}")


 def script(pgn_path, out_dir, show_coords=False):
    """ Export coordinates into move_N.svg file(s). """
    exported = dump_all_moves_to_svg(
        pgn_path=pgn_path,
        out_dir=out_dir,
        base_name="move",
        size=400,
        coordinates=show_coords
    )
    return exported

 def ensure_dir(path):
    if os.path.isdir(path):
        print("Re-using:", path)
        return False
    os.makedirs(path)
    return True


 def svg_for_move(board, last_move=None, size=400, coordinates=False):
    return chess.svg.board(
        board=board,
        lastmove=last_move,
        size=size,
        coordinates=coordinates
    )


 def dump_all_moves_to_svg(pgn_path, out_dir, base_name="move", size=400, coordinates=False, verbose=0):
    print("Read:", pgn_path)
    ensure_dir(out_dir)
    with open(pgn_path, "r", encoding="utf-8") as fdin:
        game = chess.pgn.read_game(fdin)
    if game is None:
        raise ValueError("No game found in PGN file.")
    board = game.board()
    move_index = 0
    # Initial position
    svg_init = svg_for_move(board, last_move=None, size=size, coordinates=coordinates)
    init_name = f"{base_name}_{move_index:03d}.svg"
    with open(os.path.join(out_dir, init_name), "w", encoding="utf-8") as outf:
        print("(Re-)creating:", out_dir)
        outf.write(svg_init)
    # Export mainline moves
    for mv in game.mainline_moves():
        if verbose > 0:
            print("Move:", mv)
        board.push(mv)
        move_index += 1
        svg_data = svg_for_move(board, last_move=mv, size=size, coordinates=coordinates)
        fname = f"{base_name}_{move_index:03d}.svg"
        with open(os.path.join(out_dir, fname), "w", encoding="utf-8") as outf:
            outf.write(svg_data)
    # Export variation continuation if present
    terminal = game.end()
    if terminal.variations:
        print("Found variation continuation; exporting hypothetical line...")
        var_node = terminal.variations[0]
        while var_node is not None:
            mv = var_node.move
            if mv is None:
                break
            print("Var move:", mv)
            board.push(mv)
            move_index += 1
            svg_data = svg_for_move(board, last_move=mv, size=size, coordinates=coordinates)
            fname = f"{base_name}_{move_index:03d}.svg"
            with open(os.path.join(out_dir, fname), "w", encoding="utf-8") as outf:
                outf.write(svg_data)
            var_node = var_node.variations[0] if var_node.variations else None
    return move_index


 if __name__ == "__main__":
    main()
diff --git a/dump_svg_last.py b/dump_svg_last.py
 """ kasparov_last_move_png.py
 Generate a PNG image of the final position from Caruana vs Kasparov (Saint Louis Blitz 2017)
 """

 import chess
 import chess.pgn
 import chess.svg
 import cairosvg


 def main():
    # Replace with your PGN file path
    pgn_file = "Caruana_vs_Kasparov_2017.pgn"
    output_png = "kasparov_last_move.png"
    script(pgn_file, output_png)


 def script(pgn_file, output_png):
    generate_last_position_png(pgn_file, output_png)


 def generate_last_position_png(pgn_file, output_png):
    # Load the PGN file
    with open(pgn_file, "r", encoding="utf-8") as f:
        game = chess.pgn.read_game(f)
    # Play through the game to the end
    board = game.board()
    for move in game.mainline_moves():
        board.push(move)

    # Get the last move
    last_move = board.peek()
    print("Last move played:", last_move)

    # Create SVG highlighting the last move
    svg_data = chess.svg.board(board, lastmove=last_move, size=400)

    # Convert SVG to PNG
    cairosvg.svg2png(bytestring=svg_data.encode("utf-8"), write_to=output_png)
    print(f"Final position saved as {output_png}")

 def main():
    # Replace with your PGN file path
    pgn_file = "Caruana_vs_Kasparov_2017.pgn"
    output_png = "kasparov_last_move.png"
    generate_last_position_png(pgn_file, output_png)

 if __name__ == "__main__":
    main()
diff --git a/kasparov-at-Saint-Louis-Blitz(2017).md b/kasparov-at-Saint-Louis-Blitz(2017).md
diff --git a/kasparov_last_move.png b/kasparov_last_move.png
diff --git a/LICENSE b/LICENSE
 MIT License

 Copyright (c) 2025 Henrique Moreira

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
diff --git a/requirements.txt b/requirements.txt
 chess
diff --git a/to_html.py b/to_html.py
 """
 to_html.py
 Collect all SVG files and generate a simple HTML viewer to step through moves.
 """

 import os


 def main():
    svg_dir = "svgs_all_moves"  # directory containing move_000.svg, move_001.svg, ...
    do_script(svg_dir)


 def do_script(svg_dir):
    """ Main stuff! """
    res = build_html(svg_dir, output_html="index.html")
    output_html, html_lines, svg_files = res
    assert html_lines, "html_lines"
    print(f"HTML viewer written to {output_html}:", svg_files)


 def build_html(svg_dir, output_html="index.html"):
    # Collect all SVG files in order
    svg_files = sorted([f for f in os.listdir(svg_dir) if f.endswith(".svg")])
    # Convert Python list into proper JavaScript array
    str_moves = ",".join(f'"{svg_dir}/{f}"' for f in svg_files)
    moves_js = "[" + str_moves + "]"
    # Build HTML content
    html_lines = [
        "<!DOCTYPE html>",
        "<html>",
        "<head>",
        "  <meta charset='UTF-8'>",
        "  <title>Kasparov vs Caruana – SVG Viewer</title>",
        "  <style>",
        "    body { font-family: sans-serif; text-align: center; }",
        "    img { border: 1px solid #ccc; margin: 10px; }",
        "    .controls { margin: 20px; }",
        "  </style>",
        "</head>",
        "<body>",
        "  <h1>Kasparov vs Caruana – Saint Louis Blitz 2017</h1>",
        "  <div class='controls'>",
        "    <button onclick='prevMove()'>Previous</button>",
        "    <button onclick='nextMove()'>Next</button>",
        "    <button onclick='toggleAutoPlay()'>Auto Play</button>",
        "    <p id='moveLabel'></p>",
        "  </div>",
        "  <div>",
        "    <img id='board' src='' alt='Chess board'>",
        "  </div>",
        "  <script>",
        f"    const moves = {moves_js};",
        "    let index = 0;",
        "    let autoPlayInterval = null;",
        "",
        "    function showMove(i) {",
        "      document.getElementById('board').src = moves[i];",
        "      document.getElementById('moveLabel').innerText = 'Move ' + i;",
        "    }",
        "",
        "    function prevMove() {",
        "      if (index > 0) { index--; showMove(index); }",
        "    }",
        "",
        "    function nextMove() {",
        "      if (index < moves.length - 1) { index++; showMove(index); }",
        "    }",
        "",
        "    function toggleAutoPlay() {",
        "      if (autoPlayInterval) {",
        "        clearInterval(autoPlayInterval);",
        "        autoPlayInterval = null;",
        "      } else {",
        "        autoPlayInterval = setInterval(() => {",
        "          if (index < moves.length - 1) {",
        "            index++;",
        "            showMove(index);",
        "          } else {",
        "            clearInterval(autoPlayInterval);",
        "            autoPlayInterval = null;",
        "          }",
        "        }, 2000); // advance every 2 seconds",
        "      }",
        "    }",
        "",
        "    // Initialize",
        "    showMove(index);",
        "  </script>",
        "</body>",
        "</html>"
    ]
    with open(output_html, "w", encoding="utf-8") as f:
        f.write("\n".join(html_lines) + "\n")
    return output_html, html_lines, svg_files


 if __name__ == "__main__":
    main()
	[Event "Saint Louis Blitz 2017"]
	[Site "Saint Louis USA"]
	[Date "2017.08.18"]
	[Round "12.3"]
	[White "Caruana, Fabiano"]
	[Black "Kasparov, Garry"]
	[Result "0-1"]
	[WhiteElo "2807"]
	[BlackElo "2812"]
	[ECO "B23"]

	1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. g3 g6 5. Bg2 Nc6 6. d3 Bg7 7. O-O O-O 8. a3 Rb8 9. Rb1 b6 10. b4 Bb7 11. h3 Nd7 12. Be3 Re8 13. Qd2 Ba8 14. f4 Rc8 15. g4 e6 16. f5 Nd4 17. Bxd4 cxd4 18. Nb5 exf5 19. gxf5 Ne5 20. Nbxd4 d5 21. Qf4 dxe4 22. dxe4 Qc7 23. f6 Bf8 24. Rb3 Nc4 25. Rc3 a6 26. Qxc7 Rxc7 27. Nf4 b5 28. Nd5 Rcc8 29. Rd3 Bd6 30. Nb3 Bxd5 31. exd5 Re5 32. Nc5 a5 33. Rfd1 a4 34. Rf1 Rce8 35. Rdf3 h5 36. Nd3 Re2 37. R3f2 R2e3 38. Rf3 Re2 39. R1f2 Kh7 40. Bf1 R2e4 41. Nc5 Re1 42. Kg2 Ne3+ 43. Kh1 Nxd5 44. Rd3 R8e5 45. Nd7 Rg5 46. Rff3 Bc7 47. Nc5 h4 48. Rd4 Bg3 49. Nd3 Ra1 50. Re4 Rxa3 51. Re7 Kg8 52. Re8+ Kh7 53. Rf8 Ra1 54. Rxf7+ Kg8 55. Rg7+ Kf8 56. Ra7 Rf5 57. Rxf5 gxf5 58. Kg2 Ne3+ 59. Kf3 Nxf1 60. Nc5 Re1 61. Kg2 Ne3+ 62. Kf3 Nc4 63. Ra6 Nd2+ 64. Kg2 Re2+ 65. Kh1 Rh2+ 0-1
Move	White (Caruana)	Black (Kasparov)	Comment
66	Kg1	Rh1+	Black rook drives king further into the corner
67	Kg2	Ne3+	Knight joins the attack with tempo
68	Kf2	Rf1+	Rook check, forcing king back
69	Ke2	Rf2+	Rook invades, tightening the net
70	Kxf2	Nxf5	Knight recaptures, maintaining material edge
71	gxf5	Kg7	Black king centralizes, ready to support pawns
72	Kg3	Kf6	King marches forward
73	Kg4	h5+	Pawn thrust, opening mating net
74	Kxh5	Kxf5	King captures but Black king dominates
75	h4	Rh8#	Final rook mate on h8
	""" # dump_svg_all.py -- including variations.

	Generate SVGs for every move in a PGN game, including variation continuation.
	"""

	import os
	import chess
	import chess.pgn
	import chess.svg

	SHOW_COORDINATES = True

	def main():
	pgn_path = "365chess_games.pgn" # Caruana_vs_Kasparov_2017.pgn is a soft-link to that
	out_dir = "svgs_all_moves"
	show_coords = SHOW_COORDINATES
	exported = script(pgn_path, out_dir, show_coords)
	print(f"Exported {exported} SVG files to {out_dir}")


	def script(pgn_path, out_dir, show_coords=False):
	""" Export coordinates into move_N.svg file(s). """
	exported = dump_all_moves_to_svg(
	pgn_path=pgn_path,
	out_dir=out_dir,
	base_name="move",
	size=400,
	coordinates=show_coords
	)
	return exported

	def ensure_dir(path):
	if os.path.isdir(path):
	print("Re-using:", path)
	return False
	os.makedirs(path)
	return True


	def svg_for_move(board, last_move=None, size=400, coordinates=False):
	return chess.svg.board(
	board=board,
	lastmove=last_move,
	size=size,
	coordinates=coordinates
	)


	def dump_all_moves_to_svg(pgn_path, out_dir, base_name="move", size=400, coordinates=False, verbose=0):
	print("Read:", pgn_path)
	ensure_dir(out_dir)
	with open(pgn_path, "r", encoding="utf-8") as fdin:
	game = chess.pgn.read_game(fdin)
	if game is None:
	raise ValueError("No game found in PGN file.")
	board = game.board()
	move_index = 0
	# Initial position
	svg_init = svg_for_move(board, last_move=None, size=size, coordinates=coordinates)
	init_name = f"{base_name}_{move_index:03d}.svg"
	with open(os.path.join(out_dir, init_name), "w", encoding="utf-8") as outf:
	print("(Re-)creating:", out_dir)
	outf.write(svg_init)
	# Export mainline moves
	for mv in game.mainline_moves():
	if verbose > 0:
	print("Move:", mv)
	board.push(mv)
	move_index += 1
	svg_data = svg_for_move(board, last_move=mv, size=size, coordinates=coordinates)
	fname = f"{base_name}_{move_index:03d}.svg"
	with open(os.path.join(out_dir, fname), "w", encoding="utf-8") as outf:
	outf.write(svg_data)
	# Export variation continuation if present
	terminal = game.end()
	if terminal.variations:
	print("Found variation continuation; exporting hypothetical line...")
	var_node = terminal.variations[0]
	while var_node is not None:
	mv = var_node.move
	if mv is None:
	break
	print("Var move:", mv)
	board.push(mv)
	move_index += 1
	svg_data = svg_for_move(board, last_move=mv, size=size, coordinates=coordinates)
	fname = f"{base_name}_{move_index:03d}.svg"
	with open(os.path.join(out_dir, fname), "w", encoding="utf-8") as outf:
	outf.write(svg_data)
	var_node = var_node.variations[0] if var_node.variations else None
	return move_index


	if __name__ == "__main__":
	main()
	""" kasparov_last_move_png.py
	Generate a PNG image of the final position from Caruana vs Kasparov (Saint Louis Blitz 2017)
	"""

	import chess
	import chess.pgn
	import chess.svg
	import cairosvg


	def main():
	# Replace with your PGN file path
	pgn_file = "Caruana_vs_Kasparov_2017.pgn"
	output_png = "kasparov_last_move.png"
	script(pgn_file, output_png)


	def script(pgn_file, output_png):
	generate_last_position_png(pgn_file, output_png)


	def generate_last_position_png(pgn_file, output_png):
	# Load the PGN file
	with open(pgn_file, "r", encoding="utf-8") as f:
	game = chess.pgn.read_game(f)
	# Play through the game to the end
	board = game.board()
	for move in game.mainline_moves():
	board.push(move)

	# Get the last move
	last_move = board.peek()
	print("Last move played:", last_move)

	# Create SVG highlighting the last move
	svg_data = chess.svg.board(board, lastmove=last_move, size=400)

	# Convert SVG to PNG
	cairosvg.svg2png(bytestring=svg_data.encode("utf-8"), write_to=output_png)
	print(f"Final position saved as {output_png}")

	def main():
	# Replace with your PGN file path
	pgn_file = "Caruana_vs_Kasparov_2017.pgn"
	output_png = "kasparov_last_move.png"
	generate_last_position_png(pgn_file, output_png)

	if __name__ == "__main__":
	main()
Move	Caruana (White)	Kasparov (Black)	Notes
1. e4 e6	5:00	5:00	Opening French setup
2. d4 d5	4:58	4:59	Both still fast
3. Nc3 Nf6	4:55	4:58	Caruana thinking slightly longer
4. e5 Nfd7	4:50	4:57	Kasparov plays instantly
5. f4 c5	4:40	4:55	Caruana burns time, Kasparov strikes quickly
	MIT License

	Copyright (c) 2025 Henrique Moreira

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	SOFTWARE.
	"""
	to_html.py
	Collect all SVG files and generate a simple HTML viewer to step through moves.
	"""

	import os


	def main():
	svg_dir = "svgs_all_moves" # directory containing move_000.svg, move_001.svg, ...
	do_script(svg_dir)


	def do_script(svg_dir):
	""" Main stuff! """
	res = build_html(svg_dir, output_html="index.html")
	output_html, html_lines, svg_files = res
	assert html_lines, "html_lines"
	print(f"HTML viewer written to {output_html}:", svg_files)


	def build_html(svg_dir, output_html="index.html"):
	# Collect all SVG files in order
	svg_files = sorted([f for f in os.listdir(svg_dir) if f.endswith(".svg")])
	# Convert Python list into proper JavaScript array
	str_moves = ",".join(f'"{svg_dir}/{f}"' for f in svg_files)
	moves_js = "[" + str_moves + "]"
	# Build HTML content
	html_lines = [
	"<!DOCTYPE html>",
	"<html>",
	"<head>",
	" <meta charset='UTF-8'>",
	" <title>Kasparov vs Caruana – SVG Viewer</title>",
	" <style>",
	" body { font-family: sans-serif; text-align: center; }",
	" img { border: 1px solid #ccc; margin: 10px; }",
	" .controls { margin: 20px; }",
	" </style>",
	"</head>",
	"<body>",
	" <h1>Kasparov vs Caruana – Saint Louis Blitz 2017</h1>",
	" <div class='controls'>",
	" <button onclick='prevMove()'>Previous</button>",
	" <button onclick='nextMove()'>Next</button>",
	" <button onclick='toggleAutoPlay()'>Auto Play</button>",
	" <p id='moveLabel'></p>",
	" </div>",
	" <div>",
	" <img id='board' src='' alt='Chess board'>",
	" </div>",
	" <script>",
	f" const moves = {moves_js};",
	" let index = 0;",
	" let autoPlayInterval = null;",
	"",
	" function showMove(i) {",
	" document.getElementById('board').src = moves[i];",
	" document.getElementById('moveLabel').innerText = 'Move ' + i;",
	" }",
	"",
	" function prevMove() {",
	" if (index > 0) { index--; showMove(index); }",
	" }",
	"",
	" function nextMove() {",
	" if (index < moves.length - 1) { index++; showMove(index); }",
	" }",
	"",
	" function toggleAutoPlay() {",
	" if (autoPlayInterval) {",
	" clearInterval(autoPlayInterval);",
	" autoPlayInterval = null;",
	" } else {",
	" autoPlayInterval = setInterval(() => {",
	" if (index < moves.length - 1) {",
	" index++;",
	" showMove(index);",
	" } else {",
	" clearInterval(autoPlayInterval);",
	" autoPlayInterval = null;",
	" }",
	" }, 2000); // advance every 2 seconds",
	" }",
	" }",
	"",
	" // Initialize",
	" showMove(index);",
	" </script>",
	"</body>",
	"</html>"
	]
	with open(output_html, "w", encoding="utf-8") as f:
	f.write("\n".join(html_lines) + "\n")
	return output_html, html_lines, svg_files


	if __name__ == "__main__":
	main()