Recover 2 chars Family Seed

index.js

// Ugly

const kp = require('ripple-keypairs')

// Enter your (faulty) secret here.
let secret = 's...'

let len = secret.length + 1
let alph = 'rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz'
let alphlen = alph.length

for(let i = 1; i < len; i++) {
  for(let l = 0; l < alphlen; l++){
    let gensecret = secret.substring(0, i) + alph.substring(l, l + 1) + secret.substring(i)
    try {
      for(let q = 1; q < len; q++) {
         for(let z = 0; z < alphlen; z++){
           let xgensecret = gensecret.substring(0, q) + alph.substring(z, z + 1) + gensecret.substring(q)
          //  console.log(xgensecret)
           try {
              let pair = kp.deriveKeypair(xgensecret)
              let wallet = kp.deriveAddress(pair.publicKey)
              console.log('Secret', xgensecret)
              console.log('Address', wallet)
              process.exit(0)
           } catch (e) {
            //   console.log(e.message)
           }
         }
      }
    } catch (e) {
      //   console.log(e.message)
    }
  }
}