Find the square

Details

Author:	Mark
Rating:
Difficulty:	Beginner
Date:	3rd February 2021
Description:	A simple trainer to help you rapidly identify the squares on the board from their names.

Code

let target = "";

onSquareClicked(function (squareName) {
  if (squareName == target) {
    highlightSquareGreen(squareName);
    setTimeout(unhighlightAll, 250);
    next();
  } else {
    highlightSquareRed(squareName);
  }
});

onPieceClicked(function (_) {
  return false;
});

let flipped = false;
createButton("Flip", function () {
  blackAtTop(flipped);
  flipped = !flipped;
});

createButton("Randomize Board", function () {
  fromFen("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1");

  for (let i = 0; i < 20; i++) {
    let moves = getAllPossibleMoves();
    if (moves.length == 0) {
      break;
    }

    let move = moves[Math.floor(Math.random() * moves.length)];

    performMove(move);
  }
});

function next() {
  let file = Math.floor(Math.random() * 8);

  let rank = Math.floor(Math.random() * 8) + 1;

  target = "abcdefgh".substr(file, 1) + rank;

  info("Find the square: <b>" + target + "</b>");
}

next();