{
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  {
   "cell_type": "markdown",
   "id": "f431cf93",
   "metadata": {},
   "source": [
    "# 17-05 · Проверка победы\n",
    "\n",
    "Практика к разделу [«Проверяем после каждого хода, победил ли игрок»](../../site/chapters/glava-17/17-05-proverka-pobedy.html)."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ecfef97d",
   "metadata": {},
   "source": [
    "## Цель\n",
    "\n",
    "Проверить все восемь выигрышных линий."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "a05e838e",
   "metadata": {},
   "source": [
    "## Рабочий пример"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "03e6e130",
   "metadata": {
    "execution": {
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     "iopub.status.idle": "2026-09-03T10:12:30.542466Z",
     "shell.execute_reply": "2026-09-03T10:12:30.542051Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "X\n"
     ]
    }
   ],
   "source": [
    "def proverit_pobedu(polya_teksty):\n",
    "    linii_pobedy = [\n",
    "        (0, 1, 2), (3, 4, 5), (6, 7, 8),\n",
    "        (0, 3, 6), (1, 4, 7), (2, 5, 8),\n",
    "        (0, 4, 8), (2, 4, 6),\n",
    "    ]\n",
    "    for a, b, c in linii_pobedy:\n",
    "        znacheniya = (polya_teksty[a], polya_teksty[b], polya_teksty[c])\n",
    "        if znacheniya[0] != \"\" and znacheniya[0] == znacheniya[1] == znacheniya[2]:\n",
    "            return znacheniya[0]\n",
    "    return None\n",
    "\n",
    "# верхняя строка выиграна X\n",
    "doska = [\"X\", \"X\", \"X\", \"\", \"O\", \"O\", \"\", \"\", \"\"]\n",
    "print(proverit_pobedu(doska))"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8785a6d6",
   "metadata": {},
   "source": [
    "## Эксперимент 1 — все восемь линий"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "1332be14",
   "metadata": {
    "execution": {
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     "shell.execute_reply": "2026-09-03T10:12:30.551373Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "строка 1         X: получили X, ожидали X -> OK\n",
      "строка 1         O: получили O, ожидали O -> OK\n",
      "строка 2         X: получили X, ожидали X -> OK\n",
      "строка 2         O: получили O, ожидали O -> OK\n",
      "строка 3         X: получили X, ожидали X -> OK\n",
      "строка 3         O: получили O, ожидали O -> OK\n",
      "столбец 1        X: получили X, ожидали X -> OK\n",
      "столбец 1        O: получили O, ожидали O -> OK\n",
      "столбец 2        X: получили X, ожидали X -> OK\n",
      "столбец 2        O: получили O, ожидали O -> OK\n",
      "столбец 3        X: получили X, ожидали X -> OK\n",
      "столбец 3        O: получили O, ожидали O -> OK\n",
      "диагональ 0-4-8  X: получили X, ожидали X -> OK\n",
      "диагональ 0-4-8  O: получили O, ожидали O -> OK\n",
      "диагональ 2-4-6  X: получили X, ожидали X -> OK\n",
      "диагональ 2-4-6  O: получили O, ожидали O -> OK\n",
      "\n",
      "нет победителя    : получили None, ожидали None -> OK\n",
      "Все восемь линий верны для обоих игроков: True\n"
     ]
    }
   ],
   "source": [
    "VSE_LINII = [\n",
    "    ((0, 1, 2), \"строка 1\"), ((3, 4, 5), \"строка 2\"), ((6, 7, 8), \"строка 3\"),\n",
    "    ((0, 3, 6), \"столбец 1\"), ((1, 4, 7), \"столбец 2\"), ((2, 5, 8), \"столбец 3\"),\n",
    "    ((0, 4, 8), \"диагональ 0-4-8\"), ((2, 4, 6), \"диагональ 2-4-6\"),\n",
    "]\n",
    "\n",
    "def doska_dlya_linii(liniya, znak):\n",
    "    \"\"\"Собирает поле, на котором znak занял ровно эту линию.\"\"\"\n",
    "    doska = [\"\"] * 9\n",
    "    for i in liniya:\n",
    "        doska[i] = znak\n",
    "    return doska\n",
    "\n",
    "vse_linii_ok = True\n",
    "for liniya, opisanie in VSE_LINII:\n",
    "    for znak in (\"X\", \"O\"):\n",
    "        result = proverit_pobedu(doska_dlya_linii(liniya, znak))\n",
    "        if result != znak:\n",
    "            vse_linii_ok = False\n",
    "        print(f\"{opisanie:16} {znak}: получили {result}, ожидали {znak} -> \"\n",
    "              f\"{'OK' if result == znak else 'ОШИБКА'}\")\n",
    "\n",
    "# контрольный случай: поле заполнено, но выигрышной линии нет\n",
    "bez_pobeditelya = proverit_pobedu([\"X\", \"O\", \"X\", \"X\", \"O\", \"O\", \"O\", \"X\", \"X\"])\n",
    "print(f\"\\n{'нет победителя':16}  : получили {bez_pobeditelya}, ожидали None -> \"\n",
    "      f\"{'OK' if bez_pobeditelya is None else 'ОШИБКА'}\")\n",
    "print(\"Все восемь линий верны для обоих игроков:\",\n",
    "      vse_linii_ok and bez_pobeditelya is None)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ed11895d",
   "metadata": {},
   "source": [
    "## Проверка результата"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "b02e52bd",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-09-03T10:12:30.553122Z",
     "iopub.status.busy": "2026-09-03T10:12:30.552981Z",
     "iopub.status.idle": "2026-09-03T10:12:30.555675Z",
     "shell.execute_reply": "2026-09-03T10:12:30.555170Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Обе проверки пройдены.\n"
     ]
    }
   ],
   "source": [
    "assert proverit_pobedu([\"X\",\"X\",\"X\",\"\",\"\",\"\",\"\",\"\",\"\"]) == \"X\"\n",
    "assert proverit_pobedu([\"O\",\"X\",\"O\",\"X\",\"O\",\"X\",\"X\",\"O\",\"X\"]) is None\n",
    "print(\"Обе проверки пройдены.\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d48af05c",
   "metadata": {},
   "source": [
    "## Задание ★ Базовая практика — ничья"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "19507343",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-09-03T10:12:30.556885Z",
     "iopub.status.busy": "2026-09-03T10:12:30.556724Z",
     "iopub.status.idle": "2026-09-03T10:12:30.560344Z",
     "shell.execute_reply": "2026-09-03T10:12:30.559830Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Заполнено: True\n",
      "Победитель: None\n"
     ]
    }
   ],
   "source": [
    "def pole_zapolneno(polya_teksty):\n",
    "    return all(t != \"\" for t in polya_teksty)\n",
    "\n",
    "polnaya_bez_pobeditelya = [\"X\",\"O\",\"X\",\"X\",\"O\",\"O\",\"O\",\"X\",\"X\"]\n",
    "print(\"Заполнено:\", pole_zapolneno(polnaya_bez_pobeditelya))\n",
    "print(\"Победитель:\", proverit_pobedu(polnaya_bez_pobeditelya))"
   ]
  }
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