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const alphabet = 'abcdefgh'
let board = [
[0, 0, 0, 0, 0, 0, 0, 0],
[-1, -1, -1, -1, -1, -1, -1, -1],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[1, 1, 1, 1, 1, 1, 1, 1],
[0, 0, 0, 0, 0, 0, 0, 0],
]
for (let i = 0; i < 8; i ++) {
for (let j = 0; j < 8; j ++) {
let square = document.getElementById(`${alphabet.charAt(j)}${i+1}`)
switch (board[i][j]) {
case 1:
square.append("p")
break
case -1:
square.append("p")
break
}
}
}
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