Yukon

Columns that build in alternating colours but lift any face-up group, in order or not, over a diagonal deal of hidden cards. Written as a design file, this is the whole game. Make a game explains every part of it.

{
  "name": "Yukon",
  "family": "Yukon",
  "description": "**Goal:** build all four foundations up from Ace to King, each in a single suit.\n\n- Tableau columns build **down in alternating colour**.\n- Any **face-up** card can be picked up together with everything on top of it, regardless of order — only the bottom card of the group needs to fit the target.\n- Uncovering a face-down card flips it; an empty column takes a **King** (or a group headed by one).",
  "depots": [
    { "type": "Foundation", "col": 3, "row": 0, "name": "found", "repeat": 4,
      "acceptRule": {
        "single": true,
        "seed": "Ace",
        "build": { "direction": "Up" },
        "suit": "Same"
      },
      "ejectRule": "locked" },
    { "type": "Stock", "col": -1, "row": -1, "name": "stock", "offTable": true },
    { "type": "Tableau", "col": 0, "row": 1, "name": "tab", "repeat": 7,
      "acceptRule": { "seed": "King", "build": { "direction": "Down" }, "suit": "AlternateColor" },
      "ejectRule": { "gate": "FaceUp", "unit": "any" }, "autoFlipTop": true }
  ],
  "dealRules": [
    { "kind": "dealGroup", "to": "tab-1", "faceUp": 1 },
    { "kind": "dealGroup", "to": ["tab-2", "tab-3", "tab-4", "tab-5", "tab-6", "tab-7"],
      "faceDown": 1, "roundRobin": true },
    { "kind": "dealGroup", "to": "tab-2", "faceUp": 1 },
    { "kind": "dealGroup", "to": ["tab-3", "tab-4", "tab-5", "tab-6", "tab-7"], "faceDown": 1,
      "roundRobin": true },
    { "kind": "dealGroup", "to": "tab-3", "faceUp": 1 },
    { "kind": "dealGroup", "to": ["tab-4", "tab-5", "tab-6", "tab-7"], "faceDown": 1,
      "roundRobin": true },
    { "kind": "dealGroup", "to": "tab-4", "faceUp": 1 },
    { "kind": "dealGroup", "to": ["tab-5", "tab-6", "tab-7"], "faceDown": 1, "roundRobin": true },
    { "kind": "dealGroup", "to": "tab-5", "faceUp": 1 },
    { "kind": "dealGroup", "to": ["tab-6", "tab-7"], "faceDown": 1, "roundRobin": true },
    { "kind": "dealGroup", "to": "tab-6", "faceUp": 1 },
    { "kind": "dealGroup", "to": "tab-7", "faceDown": 1 },
    { "kind": "dealGroup", "to": "tab-7", "faceUp": 1 },
    { "kind": "dealGroup", "to": ["tab-2", "tab-3", "tab-4", "tab-5", "tab-6", "tab-7"],
      "faceUp": 4, "roundRobin": true }
  ],
  "depotOnly": true,
  "winCondition": { "kind": "allCardsIn", "depots": "Foundation" },
  "tools": "None"
}