nano.json

{
 "name": "Nano Chess",
 "description": "",
 "bishopVersion": "1.4.3",
 "boardSize": "4x5",
 "pieceTypes": {
  "P": {
   "betza": "fmWfceFifmnD",
   "promoOptions": {
    "canPromote": true,
    "canPromoteTo": false
   },
   "enPassantable": true,
   "noSanSymbol": true,
   "value": 100
  },
  "N": {"betza": "N", "value": 300},
  "B": {"betza": "B", "value": 300},
  "R": {"betza": "R", "value": 500},
  "Q": {"betza": "Q", "value": 900},
  "K": {
   "betza": "K",
   "royal": true,
   "promoOptions": {
    "canPromote": false,
    "canPromoteTo": false
   }
  }
 },
 "castlingOptions": {
  "enabled": true,
  "kTarget": 2,
  "qTarget": 1,
  "fixedRooks": true,
  "kRook": 3,
  "qRook": 0,
  "rookPiece": "R",
  "useRookAsTarget": false
 },
 "promotionOptions": "bishop.promo.standard",
 "materialConditions": {
  "enabled": true,
  "soloMaters": ["P", "Q", "R", "A", "C"],
  "pairMaters": ["N"],
  "combinedPairMaters": ["B"],
  "specialCases": [["B", "N"]]
 },
 "startPosition": "knbr/p3/4/3P/RBNK w Qk - 0 1",
 "enPassant": true,
 "halfMoveDraw": 100,
 "repetitionDraw": 3
}