leetcode-problemset/leetcode/originData/valid-tic-tac-toe-state.json

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            "title": "Valid Tic-Tac-Toe State",
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            "content": "<p>Given a Tic-Tac-Toe board as a string array <code>board</code>, return <code>true</code> if and only if it is possible to reach this board position during the course of a valid tic-tac-toe game.</p>\n\n<p>The board is a <code>3 x 3</code> array that consists of characters <code>&#39; &#39;</code>, <code>&#39;X&#39;</code>, and <code>&#39;O&#39;</code>. The <code>&#39; &#39;</code> character represents an empty square.</p>\n\n<p>Here are the rules of Tic-Tac-Toe:</p>\n\n<ul>\n\t<li>Players take turns placing characters into empty squares <code>&#39; &#39;</code>.</li>\n\t<li>The first player always places <code>&#39;X&#39;</code> characters, while the second player always places <code>&#39;O&#39;</code> characters.</li>\n\t<li><code>&#39;X&#39;</code> and <code>&#39;O&#39;</code> characters are always placed into empty squares, never filled ones.</li>\n\t<li>The game ends when there are three of the same (non-empty) character filling any row, column, or diagonal.</li>\n\t<li>The game also ends if all squares are non-empty.</li>\n\t<li>No more moves can be played if the game is over.</li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/05/15/tictactoe1-grid.jpg\" style=\"width: 253px; height: 253px;\" />\n<pre>\n<strong>Input:</strong> board = [&quot;O  &quot;,&quot;   &quot;,&quot;   &quot;]\n<strong>Output:</strong> false\n<strong>Explanation:</strong> The first player always plays &quot;X&quot;.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/05/15/tictactoe2-grid.jpg\" style=\"width: 253px; height: 253px;\" />\n<pre>\n<strong>Input:</strong> board = [&quot;XOX&quot;,&quot; X &quot;,&quot;   &quot;]\n<strong>Output:</strong> false\n<strong>Explanation:</strong> Players take turns making moves.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/05/15/tictactoe4-grid.jpg\" style=\"width: 253px; height: 253px;\" />\n<pre>\n<strong>Input:</strong> board = [&quot;XOX&quot;,&quot;O O&quot;,&quot;XOX&quot;]\n<strong>Output:</strong> true\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>board.length == 3</code></li>\n\t<li><code>board[i].length == 3</code></li>\n\t<li><code>board[i][j]</code> is either <code>&#39;X&#39;</code>, <code>&#39;O&#39;</code>, or <code>&#39; &#39;</code>.</li>\n</ul>\n",
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