Return-Stitch Ferry

{
  "objective": {
    "draw": [
      "withdrawn"
    ],
    "early_exit": "withdrawn",
    "failure": [
      "Ten accepted actions without sealing the braid."
    ],
    "primary": "Seal two alternating stitches with the shuttle back at west.",
    "success": [
      "stitches = 2, bank = west, sealed = true"
    ]
  }
}