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jmcalvomartin/ChessPython.ipynb

Created April 20, 2021 14:00
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ChessPython.ipynb
{
"cells": [
{
"cell_type": "markdown",
"metadata": {
"id": "BoFfJnx3wQeh"
},
"source": [
"# 1. Programando nuestro jugador de Ajedrez"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "xEZTXuB8wQen"
},
"source": [
"\n",
"* explorar la idea de que una computadora podría \"pensar\"\n",
"* explorar la computación simbólica\n",
"* escribir un programa para jugar al ajedrez\n",
"\n",
"En este cuaderno comenzaremos a explorar * computación simbólica * escribiendo un programa para jugar al Ajedrez. \n",
"A continuación, se muestran algunos enlaces que pueden resultar útiles:\n",
"\n",
"**Introducción al ajedrez**\n",
"\n",
"* http://www.chesscorner.com/tutorial/learn.htm\n",
"* https://www.chesscademy.com/\n",
"* http://learningchess.net/us/index\n",
"* https://www.chess.com/learn-how-to-play-chess\n",
"\n",
"Para estos experimentos, usaremos la biblioteca `python-chess`.<br> \n"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "DHOZw5tKwQen"
},
"source": [
"## 1.1 Empezamos"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "J6lOK1MQwQeo"
},
"source": [
"Necesitamos instalar la libreria **chess** ya que Google Colab no la tiene en su Core"
]
},
{
"cell_type": "code",
"execution_count": 17,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"executionInfo": {
"elapsed": 5203,
"status": "ok",
"timestamp": 1614601031808,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "T1_2p0x8wSME",
"outputId": "4a2c14ab-19ed-40fc-ad83-c9a780279ada"
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Requirement already satisfied: chess in c:\\users\\jorge.calvo\\appdata\\local\\continuum\\anaconda3\\envs\\ia\\lib\\site-packages (1.5.0)\n"
]
}
],
"source": [
"!pip install chess"
]
},
{
"cell_type": "code",
"execution_count": 18,
"metadata": {
"id": "taT_nFuPwQeo"
},
"outputs": [],
"source": [
"#Una vez instalada importamos la libreria\n",
"import chess\n",
"from IPython.display import SVG\n",
"import matplotlib.pyplot as plt"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "mx33O0x2wQeo"
},
"source": [
"Usaremos la biblioteca de ajedrez de la siguiente manera:\n",
"\n",
"1. Cree una instancia de chess.Board\n",
"1. La instancia de chess.Board genera automáticamente todos los movimientos posibles para el jugador actual\n",
"1. El jugador actual elige un movimiento\n",
"1. Vaya al paso 2 y repita hasta ganar, perder o empatar.\n",
"\n",
"Hemos reducido el hecho de jugar una partida de ajedrez válida a simplemente seleccionar un movimiento en cada turno. Para jugar una buena partida de ajedrez, querrás elegir \"la mejor jugada\" en cada turno.\n",
"\n",
"Un jugador será una función que toma una instancia del tablero como argumento y devuelve un movimiento codificado como una cadena en el formato de la Interfaz Universal de Ajedrez (uci)\n",
"\n",
"```python\n",
"def player(board):\n",
" ### ¿Que puede ocurrir aqui dentro?\n",
" return move_code\n",
"```"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "ouWoKTSQwQep"
},
"source": [
"## 1.2 El tablero"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "OBLZT4MPwQep"
},
"source": [
"La clase Board realiza un seguimiento de quién es el turno, posibles movimientos y un historial de todos los movimientos pasados. Esta clase puede deshacer y rehacer movimientos y realiza un seguimiento de los estados repetidos.\n",
"\n",
"Primero, creamos una instancia de placa:"
]
},
{
"cell_type": "code",
"execution_count": 19,
"metadata": {
"id": "sQzfE5juwQeq",
"jupyter": {
"outputs_hidden": false
}
},
"outputs": [],
"source": [
"board = chess.Board()"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "NDxYhPD8wQeq"
},
"source": [
"El valor de `board.turn` es un booleano que indica de quién es el turno. Los valores son Verdadero para el blanco o Falso para el negro."
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "iPYh5cYiwQer"
},
"source": [
"El juego siempre comienza con el turno de las blancas. Si olvidas cuál es Verdadero, puedes preguntar al módulo de ajedrez:"
]
},
{
"cell_type": "code",
"execution_count": 20,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"executionInfo": {
"elapsed": 980,
"status": "ok",
"timestamp": 1614601153289,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "QbpfDHGpwQes",
"jupyter": {
"outputs_hidden": false
},
"outputId": "9691e673-de5a-42c7-c65a-d3c56f0efe0a"
},
"outputs": [
{
"data": {
"text/plain": [
"True"
]
},
"execution_count": 20,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"board.turn == chess.WHITE"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "F6ZcQlUvwQes"
},
"source": [
"La clase chess.Board se encarga de generar todos los movimientos posibles, de quién es el turno, realizar un seguimiento de la colocación de todas las piezas y realizar cada movimiento. El tablero de ajedrez representa una matriz bidimensional de 8 x 8.\n",
"\n",
"Aquí hay una representación visual de un tablero de ajedrez:"
]
},
{
"cell_type": "code",
"execution_count": 21,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/",
"height": 411
},
"executionInfo": {
"elapsed": 552,
"status": "ok",
"timestamp": 1614601158022,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "VPmxmuS8wQes",
"jupyter": {
"outputs_hidden": false
},
"outputId": "a503c805-38a5-41ae-ba26-2032b9a43b7c"
},
"outputs": [
{
"data": {
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1.414z\" /></g><rect class=\"square dark a1\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"15\" y=\"330\" /><rect class=\"square light b1\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"60\" y=\"330\" /><rect class=\"square dark c1\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"105\" y=\"330\" /><rect class=\"square light d1\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"150\" y=\"330\" /><rect class=\"square dark e1\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"195\" y=\"330\" /><rect class=\"square light f1\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"240\" y=\"330\" /><rect class=\"square dark g1\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"285\" y=\"330\" /><rect class=\"square light h1\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"330\" y=\"330\" /><rect class=\"square light a2\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" 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height=\"45\" stroke=\"none\" width=\"45\" x=\"60\" y=\"240\" /><rect class=\"square dark c3\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"105\" y=\"240\" /><rect class=\"square light d3\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"150\" y=\"240\" /><rect class=\"square dark e3\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"195\" y=\"240\" /><rect class=\"square light f3\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"240\" y=\"240\" /><rect class=\"square dark g3\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"285\" y=\"240\" /><rect class=\"square light h3\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"330\" y=\"240\" /><rect class=\"square light a4\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"15\" y=\"195\" /><rect class=\"square dark b4\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"60\" y=\"195\" /><rect class=\"square light c4\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"105\" y=\"195\" /><rect class=\"square dark d4\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"150\" y=\"195\" /><rect class=\"square light e4\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"195\" y=\"195\" /><rect class=\"square dark f4\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"240\" y=\"195\" /><rect class=\"square light g4\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"285\" y=\"195\" /><rect class=\"square dark h4\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"330\" y=\"195\" /><rect class=\"square dark a5\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"15\" y=\"150\" /><rect class=\"square light b5\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"60\" y=\"150\" /><rect class=\"square dark c5\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"105\" y=\"150\" /><rect class=\"square light d5\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"150\" y=\"150\" /><rect class=\"square dark e5\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"195\" y=\"150\" /><rect class=\"square light f5\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"240\" y=\"150\" /><rect class=\"square dark g5\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"285\" y=\"150\" /><rect class=\"square light h5\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"330\" y=\"150\" /><rect class=\"square light a6\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"15\" y=\"105\" /><rect class=\"square dark b6\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"60\" y=\"105\" /><rect class=\"square light c6\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"105\" y=\"105\" /><rect class=\"square dark d6\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"150\" y=\"105\" /><rect class=\"square light e6\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"195\" y=\"105\" /><rect class=\"square dark f6\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"240\" y=\"105\" /><rect class=\"square light g6\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"285\" y=\"105\" /><rect class=\"square dark h6\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"330\" y=\"105\" /><rect class=\"square dark a7\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"15\" y=\"60\" /><rect class=\"square light b7\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"60\" y=\"60\" /><rect class=\"square dark c7\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"105\" y=\"60\" /><rect class=\"square light d7\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"150\" y=\"60\" /><rect class=\"square dark e7\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"195\" y=\"60\" /><rect class=\"square light f7\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"240\" y=\"60\" /><rect class=\"square dark g7\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"285\" y=\"60\" /><rect class=\"square light h7\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"330\" y=\"60\" /><rect class=\"square light a8\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"15\" y=\"15\" /><rect class=\"square dark b8\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"60\" y=\"15\" /><rect class=\"square light c8\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"105\" y=\"15\" /><rect class=\"square dark d8\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"150\" y=\"15\" /><rect class=\"square light e8\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"195\" y=\"15\" /><rect class=\"square dark f8\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"240\" y=\"15\" /><rect class=\"square light g8\" fill=\"#ffce9e\" height=\"45\" stroke=\"none\" width=\"45\" x=\"285\" y=\"15\" /><rect class=\"square dark h8\" fill=\"#d18b47\" height=\"45\" stroke=\"none\" width=\"45\" x=\"330\" y=\"15\" /><use transform=\"translate(15, 330)\" xlink:href=\"#white-rook\" /><use transform=\"translate(60, 330)\" xlink:href=\"#white-knight\" /><use transform=\"translate(105, 330)\" xlink:href=\"#white-bishop\" /><use transform=\"translate(150, 330)\" xlink:href=\"#white-queen\" /><use transform=\"translate(195, 330)\" xlink:href=\"#white-king\" /><use transform=\"translate(240, 330)\" xlink:href=\"#white-bishop\" /><use transform=\"translate(285, 330)\" xlink:href=\"#white-knight\" /><use transform=\"translate(330, 330)\" xlink:href=\"#white-rook\" /><use transform=\"translate(15, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(60, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(105, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(150, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(195, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(240, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(285, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(330, 285)\" xlink:href=\"#white-pawn\" /><use transform=\"translate(15, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(60, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(105, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(150, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(195, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(240, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(285, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(330, 60)\" xlink:href=\"#black-pawn\" /><use transform=\"translate(15, 15)\" xlink:href=\"#black-rook\" /><use transform=\"translate(60, 15)\" xlink:href=\"#black-knight\" /><use transform=\"translate(105, 15)\" xlink:href=\"#black-bishop\" /><use transform=\"translate(150, 15)\" xlink:href=\"#black-queen\" /><use transform=\"translate(195, 15)\" xlink:href=\"#black-king\" /><use transform=\"translate(240, 15)\" xlink:href=\"#black-bishop\" /><use transform=\"translate(285, 15)\" xlink:href=\"#black-knight\" /><use transform=\"translate(330, 15)\" xlink:href=\"#black-rook\" /></svg>"
],
"text/plain": [
"Board('rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1')"
]
},
"execution_count": 21,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"board"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "INLc6ww4wQet"
},
"source": [
"El tablero bidimensional está dispuesto de modo que cada posición se indique mediante una letra de columna y un número de fila. Sin embargo, la representación interna es secuencial. Digamos que queríamos ver qué había en la ubicación 'c1' que podíamos usar:"
]
},
{
"cell_type": "code",
"execution_count": 24,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"executionInfo": {
"elapsed": 505,
"status": "ok",
"timestamp": 1614601216599,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "DN8HNZirwQet",
"jupyter": {
"outputs_hidden": false
},
"outputId": "ef7fe171-331a-4a8f-9b90-808012deeb7e"
},
"outputs": [
{
"data": {
"text/plain": [
"6"
]
},
"execution_count": 24,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"chess.G1"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "fGsowNKTwQeu"
},
"source": [
"para obtener la ubicación interna de la columna / fila"
]
},
{
"cell_type": "code",
"execution_count": 25,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/",
"height": 66
},
"executionInfo": {
"elapsed": 615,
"status": "ok",
"timestamp": 1614601267237,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "DT5SifMnwQeu",
"jupyter": {
"outputs_hidden": false
},
"outputId": "22d1ff75-9f98-4dc5-99c7-6319d3294232"
},
"outputs": [
{
"data": {
"image/svg+xml": [
"<svg height=\"45\" version=\"1.1\" viewBox=\"0 0 45 45\" width=\"45\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g class=\"white queen\" fill=\"#fff\" fill-rule=\"evenodd\" id=\"white-queen\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"1.5\"><path d=\"M8 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM24.5 7.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM41 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM16 8.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM33 9a2 2 0 1 1-4 0 2 2 0 1 1 4 0z\" /><path d=\"M9 26c8.5-1.5 21-1.5 27 0l2-12-7 11V11l-5.5 13.5-3-15-3 15-5.5-14V25L7 14l2 12zM9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z\" stroke-linecap=\"butt\" /><path d=\"M11.5 30c3.5-1 18.5-1 22 0M12 33.5c6-1 15-1 21 0\" fill=\"none\" /></g></svg>"
],
"text/plain": [
"Piece.from_symbol('Q')"
]
},
"execution_count": 25,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"board.piece_at(chess.D1)"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "YSYLZplcwQeu"
},
"source": [
"En forma de caracter"
]
},
{
"cell_type": "code",
"execution_count": 26,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
},
"executionInfo": {
"elapsed": 544,
"status": "ok",
"timestamp": 1614601360409,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "Afycfu_swQeu",
"jupyter": {
"outputs_hidden": false
},
"outputId": "9fdd2cb0-e1e7-44f7-ccaa-145896e04356"
},
"outputs": [
{
"data": {
"text/plain": [
"'r'"
]
},
"execution_count": 26,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"str(board.piece_at(chess.A8))"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "AbK62_TvZTXx"
},
"source": [
"### En formato ASCII\n",
"\n",
"`print(str(board))`\n",
"\n",
"Piece | White | Black\n",
"------|-------|--------\n",
"Pawn | P | p\n",
"Rook | R | r\n",
"Knight | N | n\n",
"Bishop | B | b\n",
"Queen | Q | q\n",
"King | K | k"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "r8XafP3XwQev"
},
"source": [
"## 1.3 Hacer movimientos"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "AmIgdlInwQev"
},
"source": [
"En este punto generar todos los movimientos legales posibles. Esto se guadará en una lista con todos ellos."
]
},
{
"cell_type": "code",
"execution_count": 27,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"executionInfo": {
"elapsed": 506,
"status": "ok",
"timestamp": 1614601393924,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "RodLXF1YwQew",
"jupyter": {
"outputs_hidden": false
},
"outputId": "c8c6bb06-185b-4890-ff59-1c26621097b6"
},
"outputs": [
{
"data": {
"text/plain": [
"[Move.from_uci('g1h3'),\n",
" Move.from_uci('g1f3'),\n",
" Move.from_uci('b1c3'),\n",
" Move.from_uci('b1a3'),\n",
" Move.from_uci('h2h3'),\n",
" Move.from_uci('g2g3'),\n",
" Move.from_uci('f2f3'),\n",
" Move.from_uci('e2e3'),\n",
" Move.from_uci('d2d3'),\n",
" Move.from_uci('c2c3'),\n",
" Move.from_uci('b2b3'),\n",
" Move.from_uci('a2a3'),\n",
" Move.from_uci('h2h4'),\n",
" Move.from_uci('g2g4'),\n",
" Move.from_uci('f2f4'),\n",
" Move.from_uci('e2e4'),\n",
" Move.from_uci('d2d4'),\n",
" Move.from_uci('c2c4'),\n",
" Move.from_uci('b2b4'),\n",
" Move.from_uci('a2a4')]"
]
},
"execution_count": 27,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"list(board.legal_moves)"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "LMLRv_jKwQew"
},
"source": [
"Obtenemos el primer movimiento"
]
},
{
"cell_type": "code",
"execution_count": 28,
"metadata": {
"id": "uMe2PAnlwQew",
"jupyter": {
"outputs_hidden": false
}
},
"outputs": [],
"source": [
"move = list(board.legal_moves)[0]"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "gi5Nv2F5wQew"
},
"source": [
"### 1.3.1 Universal Chess Interface"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "uxC0gtZCwQew"
},
"source": [
"Universal Chess Interface **(uci)** es la representación de un movimeinto de una casilla a otra."
]
},
{
"cell_type": "code",
"execution_count": 29,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"executionInfo": {
"elapsed": 533,
"status": "ok",
"timestamp": 1614601553425,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "Ul0eNxjzwQex",
"jupyter": {
"outputs_hidden": false
},
"outputId": "58ee69f8-98b5-4fa4-f4cc-c1bdfe800bcf"
},
"outputs": [
{
"data": {
"text/plain": [
"Move.from_uci('g1h3')"
]
},
"execution_count": 29,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"move"
]
},
{
"cell_type": "code",
"execution_count": 30,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
},
"executionInfo": {
"elapsed": 440,
"status": "ok",
"timestamp": 1614601582664,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "7nojiYo-wQex",
"jupyter": {
"outputs_hidden": false
},
"outputId": "7d6e0812-6867-40b5-d09b-f96abc2b7562"
},
"outputs": [
{
"data": {
"text/plain": [
"'g1h3'"
]
},
"execution_count": 30,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"move.uci()"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "AiQAgoTuwQex"
},
"source": [
"Este es un movimiento de b1 a a3.\n",
"\n",
"¿Qué pieza es esta y dónde se mueve en el tablero? ¿Es este un buen movimiento?\n",
"\n",
"La cadena uci es lo que devolverá cada función de jugador."
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "FXnfzQ0lwQey"
},
"source": [
"## 1.4 Programación aleatoria de una jugada"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "MpcLjZCEwQey"
},
"source": [
"Importamos la libreria `ramdom` y creamos una función donde le pasamos el tablero `board` "
]
},
{
"cell_type": "code",
"execution_count": 31,
"metadata": {
"id": "DRQxpF0VwQey"
},
"outputs": [],
"source": [
"import random"
]
},
{
"cell_type": "code",
"execution_count": 32,
"metadata": {
"id": "w4XALDqrwQez",
"jupyter": {
"outputs_hidden": false
}
},
"outputs": [],
"source": [
"def random_player(board):\n",
" move = random.choice(list(board.legal_moves))\n",
" return move.uci()"
]
},
{
"cell_type": "code",
"execution_count": 33,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
},
"executionInfo": {
"elapsed": 544,
"status": "ok",
"timestamp": 1614601830522,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "cBBh8gdpwQez",
"jupyter": {
"outputs_hidden": false
},
"outputId": "b87f29b4-cb5e-4586-f5e0-e25dd26b3741"
},
"outputs": [
{
"data": {
"text/plain": [
"'b1a3'"
]
},
"execution_count": 33,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#Sacar una jugada posible al azar\n",
"random_player(board)"
]
},
{
"cell_type": "code",
"execution_count": 34,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"executionInfo": {
"elapsed": 551,
"status": "ok",
"timestamp": 1614601862107,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "tlNJaAwGwQez",
"jupyter": {
"outputs_hidden": false
},
"outputId": "c5ccc15e-9ed2-4c3d-f722-6798bb860582"
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"d2d4\n",
"c2c4\n",
"g1h3\n",
"h2h3\n",
"e2e3\n",
"e2e4\n",
"e2e3\n",
"f2f4\n",
"c2c4\n",
"c2c4\n"
]
}
],
"source": [
"#Sacar 10 jugadas\n",
"for i in range(10):\n",
" print(random_player(board))"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "6O35wRconMIb"
},
"source": [
"Para realizar un movimiento usamos la función `board.push_uci`y le pasamos como parametro el movimiento a realizar. En este caso le pasamos nuestra función que genera movimientos aleatorios `random_player()`"
]
},
{
"cell_type": "code",
"execution_count": 35,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/",
"height": 428
},
"executionInfo": {
"elapsed": 576,
"status": "ok",
"timestamp": 1614603039984,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "OJj0nhUA-mfo",
"outputId": "5dcbb002-2413-44da-d92d-0c15ab36b6fb"
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"El Próximo movimiento podría ser: f7f5\n"
]
},
{
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],
"text/plain": [
"Board('rnbqkbnr/pppppppp/8/8/8/6P1/PPPPPP1P/RNBQKBNR b KQkq - 0 1')"
]
},
"execution_count": 35,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#Realizar el movimiento\n",
"board.push_uci(random_player(board))\n",
"\n",
"#Mostrar el tablero con un mensaje \n",
"print(\"El Próximo movimiento podría ser: \" + random_player(board))\n",
"board"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "f_vuz3MzutzW"
},
"source": [
"## 1.5 Comandos del juego\n",
"\n",
"* `board.move_stack` Devuelve una lista de los movimientos realziados en la partida\n",
"* `board.peek()`Devuelve el ultimo movimiento realizado\n",
"* `board.pop()`Restaura en el tablero el ultimo movimiento en `move_statck`\n",
"* `board.push()`Coloca una figura en cualquier posición (no atiende a reglas)\n",
"* `board.reset_board()` Resetea el tablero\n",
"* `board.copy()`Hacer una copia del tablero en otra variable\n",
"\n"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "HFJDNEgcQ5Wt"
},
"source": [
"## 1.6 Propiedades Movimientos\n",
"\n",
"* Devuelve un boolean si esa puede ser atacada (parametros: color y posición)<br>\n",
"`board.is_attacked_by(chess.BLACK,chess.A4)` \n",
"\n",
"* Devuelve tablero ASCII de la posición del atacante (parametros: color y posición)<br>\n",
"`board.attackers(chess.BLACK,chess.F4)`\n",
"\n",
"* Devuelve la posición del Rey (parametro: color)<br>\n",
"`board.king(chess.WHITE)`\n",
"\n",
"* Devuelve color del turno<br>\n",
"`print(who(board.turn))`\n",
"\n",
"* Devuelve el valor ASCII (numérico) de la figura. Ejemplo peón<br>\n",
"`chess.PAWN`\n",
"\n",
"* Devuelve una lista de donde están situadas las piezas. Parametros: Figura y color <br>\n",
"`list(board.pieces(chess.PAWN, chess.BLACK))`\n",
"\n",
"* Distancia en pasos de una casilla a otra (Devuelve un **int**).<br>\n",
"`chess.square_distance(chess.A1, chess.F1)`\n",
"\n",
"* Copiar el tablero y las jugadas<br> \n",
"`newboard=board.copy()`"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "e6CAB6oVSg8E"
},
"source": [
"## 1.7 Verificar \n",
"\n",
"* Verifica si la posición actual es Mate (devuelve Boolean)<br>\n",
"`board.is_checkmate()`\n",
"\n",
"* Verifica si la posición actual es situación de ahogamiento (devuelve Boolean)<br>\n",
"`board.is_stalemate()`\n",
"\n",
"* Desde el 1 de julio de 2014, un juego se empata automáticamente (sin un reclamo por parte de uno de los jugadores) si se produce una posición por quinta vez.(devuelve Boolean)<br>\n",
"`board.is_fivefold_repetition()`\n",
"\n",
"* Comprueba si el color no tiene suficientes figuras para ganar.\n",
"Se garantiza que se devolverá **False** si el color aún puede ganar el juego.<br>\n",
"`board.is_insufficient_material()`\n",
"\n",
"* Comprueba si el jugador que se mueve puede reclamar un empate por la regla de los cincuenta movimientos o por repetición triple.\n",
"Tenga en cuenta que comprobar este último puede ser lento.<br>\n",
"`board.can_claim_draw()`\n",
"\n",
"* Comprueba si la posición actual se ha repetido 3 (o un número determinado de) veces. <br>\n",
"`board.is_repetition (count: int = 3)` \n",
"\n",
"* Muestra el resultado una vez que el juego ha terminado<br>\n",
"`board.result()`\n",
"\n",
"* Comprueba si el juego ha terminado debido a jaque mate, estancamiento, material insuficiente, la regla de los setenta y cinco movimientos, repetición de cinco veces <br>\n",
"`board.is_game_over()`\n",
"\n"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "Bq3O7uAPZzDB"
},
"source": [
"## 1.8 Funciones útiles\n",
"\n",
"``` python\n",
"import time\n",
"\n",
"#Función para devolver el color del turno del jugador\n",
"def who(board.turn):\n",
" if player == chess.WHITE: \n",
" return \"White\" \n",
" else: \n",
" return \"Black\"\n",
"\n",
"\n",
"#Varios movimientos de forma visual y con pausa\n",
"import time\n",
"from IPython.display import display, clear_output\n",
"\n",
"for i in range (5):\n",
" board.push_uci(random_player(board))\n",
" display(board)\n",
" clear_output(wait=True)\n",
" time.sleep(2)\n",
"```"
]
},
{
"cell_type": "code",
"execution_count": 36,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/",
"height": 411
},
"executionInfo": {
"elapsed": 10594,
"status": "ok",
"timestamp": 1614603192396,
"user": {
"displayName": "Jorge Calvo",
"photoUrl": "https://lh3.googleusercontent.com/a-/AOh14Gg8pdoMjjPpCHRH5uQUOj7SnCMquo8M-N2AfXgB-Q=s64",
"userId": "10226705508239215505"
},
"user_tz": -60
},
"id": "0arhz5142IMu",
"outputId": "c31559c5-f3a1-4068-8d1b-71a317ce6200"
},
"outputs": [
{
"data": {
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],
"text/plain": [
"Board('r1bqkbnr/ppp1ppp1/n2p4/7p/5P2/2P3P1/PP1PP2P/RNBQKBNR w KQkq - 1 4')"
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"import time\n",
"from IPython.display import display, clear_output\n",
" \n",
"for i in range (5):\n",
" board.push_uci(random_player(board))\n",
" display(board)\n",
" clear_output(wait=True)\n",
" time.sleep(2)"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"id": "vmJYVSMj2JEm"
},
"outputs": [],
"source": []
}
],
"metadata": {
"colab": {
"collapsed_sections": [],
"name": "ChessPython.ipynb",
"provenance": [
{
"file_id": "1yCKAP6nPO2D4InvIGElcY6P88-ua7d_s",
"timestamp": 1614354623810
}
],
"toc_visible": true
},
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.7.7"
}
},
"nbformat": 4,
"nbformat_minor": 1
}
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