// returns <fen, score>
static Pair<S, Double> chessOCR_recognizeBoard_FENAndScore(BufferedImage board, ChessPieceRecognizer pieceRecognizer) {
  LPair<S, Double> recognized = chessOCR_recognizeBoard(board, pieceRecognizer);
  ret pair(chess_makeFEN(listToChunks(pairsA(recognized), 8)),
    doubleAvg(pairsB(recognized)));
}