function isSolved(board, len = 3) {
let arr = ['', '', '', ''], isZero = false;
for (let i = 0; i < board.length; i++) {
for (let j = 0; j < board.length; j++) {
if (board[i][j] === 0) isZero = true;
arr[0] += board[i][j];
arr[1] += board[j][i];
if (i == 0) arr[2] += board[j][j];
if (i == board.length - 1) arr[3] += board[j][i - j];
}
if (i != board.length - 1) {
arr[0] += '-';
arr[1] += '-';
}
}
let state = arr.join('-').match('(?:1{' + len + '}|2{' + len + '})');
return state ? +state[0][0] : isZero ? -1 : 0;
}
const foo = () =>
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6var tvRemote = function(word) {
var kb = {'a':[0, 0], 'b':[0, 1], 'c':[0, 2], 'd':[0, 3], 'e':[0, 4], '1':[0, 5], '2':[0, 6], '3':[0, 7],
'f':[1, 0], 'g':[1, 1], 'h':[1, 2], 'i':[1, 3], 'j':[1, 4], '4':[1, 5], '5':[1, 6], '6':[1, 7],
'k':[2, 0], 'l':[2, 1], 'm':[2, 2], 'n':[2, 3], 'o':[2, 4], '7':[2, 5], '8':[2, 6], '9':[2, 7],
'p':[3, 0], 'q':[3, 1], 'r':[3, 2], 's':[3, 3], 't':[3, 4], '.':[3, 5], '@':[3, 6], '0':[3, 7],
'u':[4, 0], 'v':[4, 1], 'w':[4, 2], 'x':[4, 3], 'y':[4, 4], 'z':[4, 5], '_':[4, 6], '/':[4, 7]
};
var steps = 0;
word.split('').map(n => kb[n]).reduce((a, b) => {
steps += Math.abs(a[0] - b[0]) + Math.abs(a[1] - b[1]) + 1;
return b;
},[0, 0]);
return steps;
}