diff --git a/index.js b/index.js
index 7553909..0dbaaea 100644
--- a/index.js
+++ b/index.js
@@ -3,12 +3,20 @@ const ZERO = 'O';
 const EMPTY = ' ';
 
 const container = document.getElementById('fieldWrapper');
+let fieldData;
+let count;
+let isPlayable;
+let dimension;
 
 startGame();
 addResetListener();
 
 function startGame () {
-    renderGrid(3);
+    dimension = prompt("Введите размер поля");
+    count = dimension**2;
+    fieldData = [];
+    isPlayable = true;
+    renderGrid(dimension);
 }
 
 function renderGrid (dimension) {
@@ -16,9 +24,11 @@ function renderGrid (dimension) {
 
     for (let i = 0; i < dimension; i++) {
         const row = document.createElement('tr');
+        fieldData.push([]);
         for (let j = 0; j < dimension; j++) {
             const cell = document.createElement('td');
             cell.textContent = EMPTY;
+            fieldData[i][j] = EMPTY;
             cell.addEventListener('click', () => cellClickHandler(i, j));
             row.appendChild(cell);
         }
@@ -27,13 +37,112 @@ function renderGrid (dimension) {
 }
 
 function cellClickHandler (row, col) {
-    // Пиши код тут
+    if (findCell(row,col).textContent === EMPTY && isPlayable)
+        if(count % 2 === 0)
+            processClick (ZERO, row, col)
+        else
+            processClick (CROSS, row, col)
+
     console.log(`Clicked on cell: ${row}, ${col}`);
+}
 
+function processClick (symbol, row, col) {
+    renderSymbolInCell(symbol, row, col);
+    fieldData[row][col] = symbol;
+    if (checkWinner(symbol, row, col)) {
+        alert(`${symbol === CROSS ? "Крестики" : "Нолики"} победили!`)
+        isPlayable = false;
+    }
+    if (--count === 0 && isPlayable)
+        alert("Победила дружба!");
+}
+
+function checkWinner (symbol, row, col) {
+
+    let isLined = true;
+    let winType;
+    {
+        for (let i = 0; i < dimension; i++) {
+            if (fieldData[row][i] !== symbol) {
+                isLined = false;
+                break;
+            }
+            isLined = true;
+        }
+        winType = "ver";
+    }
+    if (!isLined) {
+        for (let i = 0; i < dimension; i++) {
+            if (fieldData[i][col] !== symbol) {
+                isLined = false;
+                break;
+            }
+            isLined = true;
+        }
+        winType = "hor";
+    }
+    if (!isLined) {
+        for (let i = 0; i < dimension; i++) {
+            if (fieldData[i][i] !== symbol) {
+                isLined = false;
+                break;
+            }
+            isLined = true;
+        }
+        winType = "diagL";
+    }
+    if (!isLined) {
+        for (let i = 0; i < dimension; i++) {
+            if (fieldData[i][dimension - 1 - i] !== symbol) {
+                isLined = false;
+                break;
+            }
+            isLined = true;
+        }
+        winType = "diagR";
+    }
+
+    if (isLined)
+        changeColor(winType, row, col);
+    return isLined;
+}
+
+function changeColor(way, row, col)
+{
+    for (let i = 0; i < dimension; i++) {
+        switch (way) {
+            case "hor":
+                changeCellColor(i, col)
+                break;
+
+            case "ver":
+                changeCellColor(row, i)
+                break;
+
+            case "diagL":
+                changeCellColor(i, i)
+                break;
+
+            case "diagR":
+                changeCellColor(i, dimension - 1 - i)
+                break;
+        }
+    }
+}
+
+function changeCellColor(x, y)
+{
+    findCell(x, y).style.color = 'red'
+}
+
+
+function computerMove () {
+    let x = getRandomInt(), y = getRandomInt();
+    console.log(x, y);
+}
 
-    /* Пользоваться методом для размещения символа в клетке так:
-        renderSymbolInCell(ZERO, row, col);
-     */
+function getRandomInt(max) {
+    return Math.floor(Math.random() * max);
 }
 
 function renderSymbolInCell (symbol, row, col, color = '#333') {
@@ -55,6 +164,7 @@ function addResetListener () {
 
 function resetClickHandler () {
     console.log('reset!');
+    startGame();
 }