JavaScript (two pointer with comments)
\n/**\n* @param {string} start\n* @param {string} end\n* @return {boolean}\n*/\nvar canTransform = function (start, end) {\n    const sWithoutX = start.replace(
```\n/**\n* @param {string} start\n* @param {string} end\n* @return {boolean}\n*/\nvar canTransform = function (start, end) {\n    const sWithoutX = start.replace(/X/g, \'\');\n    const eWithoutX = end.replace(/X/g, \'\');\n\n    // start and end text without x\'s should equal\n    if (sWithoutX !== eWithoutX) return false;\n\n    const sCount = { l: 0, r: 0 };\n    const eCount = { l: 0, r: 0 };\n\n    // iterate through original start string\n    for (let i = 0; i < start.length; i++) {\n        \n        // track occurances of L\'s and R\'s\n        if (start[i] === \'L\') {\n            sCount.l++;\n        } else if (start[i] === \'R\') {\n            sCount.r++;\n        }\n\n        // also track L/R occurances on end string\n        if (end[i] === \'L\') {\n            eCount.l++;\n        } else if (end[i] === \'R\') {\n            eCount.r++;\n        }\n\n        // if at any point during iteration, start has more l\'s than end\n        // or if start has less r\'s than end - path impossible\n        if (sCount.l > eCount.l || sCount.r < eCount.r) return false;\n    }\n    \n    return true;\n \n};\n```
['JavaScript']