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Karel Solution

⚠️ Disclaimer

These solutions are designed for beginners to quickly follow. There are, in fact, many more ways to solve these puzzles. Try it out yourself!

Morning Newspaper

function turnRight() {
  turnLeft();
  turnLeft();
  turnLeft();
}

function turnAround() {
  turnLeft();
  turnLeft();
}

move();
move();
turnRight();
move();
turnLeft();
move();
pickBeeper();
turnAround();
move();
move();
move();
turnRight();
move();
putBeeper();

Checkerboard

move();
putBeeper();
move();
move();
putBeeper();
move();
turnLeft();
turnLeft();
turnLeft();
move();
putBeeper();
turnLeft();
turnLeft();
turnLeft();
move();
move();
putBeeper();
move();
move();
putBeeper();
turnLeft();
move();
turnLeft();
move();
putBeeper();
move();
move();
putBeeper();

Pick Up the Beepers

while (frontIsClear()) {
  move();
  while (beepersPresent()) {
    pickBeeper();
  }
}

Pot Holes

while (frontIsClear()) {
  move();
  if (rightIsClear()) {
    turnRight();
    move();
    putBeeper();
    turnAround();
    move();
    turnRight();
  }
}

Move the Beepers

while (noBeepersPresent()) {
  move();
}

while (beepersPresent()) {
  pickBeeper();
  move();
  putBeeper();
  turnAround();
  move();
  turnAround();
}

Double the Beepers

while (noBeepersPresent()) {
  move();
}

while (beepersPresent()) {
  pickBeeper();
  move();
  putBeeper();
  putBeeper();
  turnAround();
  move();
  turnAround();
}

move();

while (beepersPresent()) {
  pickBeeper();
  turnAround();
  move();
  putBeeper();
  turnAround();
  move();
}

Hospitals

while (frontIsClear()) {
  move();
  if (beepersPresent()) {
    pickBeeper();
    buildHospital();
  }
}

function buildHospital() {
  turnLeft();
  putBeeperLine();
  turnRight();
  move();
  turnRight();
  putBeeperLine();
  turnLeft();
}

function putBeeperLine() {
  putBeeper();
  move();
  putBeeper();
  move();
  putBeeper();
}

Midpoint

// Minh
function main() {
  putBeeper();
  putBeeperToTheEnd();
  turnAround();
  move();

  while (noBeepersPresent()) {
    moveToTheNextBeeper();
    bringBeeperOneStepCloser();
    move();
  }

  pickBeeper();
}

function putBeeperToTheEnd() {
  while (frontIsClear()) {
    move();
  }
  putBeeper();
}

function moveToTheNextBeeper() {
  move();
  while (noBeepersPresent()) {
    move();
  }
}

function bringBeeperOneStepCloser() {
  pickBeeper();
  turnAround();
  move();
  if (noBeepersPresent()) {
    putBeeper();
  }
}

main();

// Bitna
function main() {
  putBeepersOnEnds();
  narrowBeepers();
}

function putBeepersOnEnds() {
  putBeeper();
  while (frontIsClear()) {
    move();
  }
  putBeeper();
  turnAround();
  move();
}

function narrowBeepers() {
  while (noBeepersPresent()) {
    moveTillBeeper();
    moveBeeperOneStep();
  }

  pickBeeper();

  while (frontIsClear()) {
    move();
  }
}

function moveBeeperOneStep() {
  pickBeeper();
  turnAround();
  move();
  if (noBeepersPresent()) {
    putBeeper();
    move();
  }
}
function moveTillBeeper() {
  while (noBeepersPresent()) {
    move();
  }
}
main();

Maze

Karel always follows the right side wall to find the way out.