diff --git a/server/models/SudokuRecord.ts b/server/models/SudokuRecord.ts
index 93e3d11..d6aa084 100644
--- a/server/models/SudokuRecord.ts
+++ b/server/models/SudokuRecord.ts
@@ -7,6 +7,7 @@ export interface ISudokuRecord extends Document {
   username: string;
   fullname: string;
   difficulty: SudokuDifficulty;
+  gameMode: 'standard' | 'irregular';
   timeSeconds: number;
   won: boolean;
   createdAt: Date;
@@ -17,6 +18,7 @@ export interface ISudokuLeaderboardRecord {
   userId: mongoose.Types.ObjectId;
   username: string;
   fullname: string;
+  gameMode: 'standard' | 'irregular';
   bestTime: number;
   totalGames: number;
   wonGames: number;
@@ -43,6 +45,12 @@ const sudokuRecordSchema = new Schema<ISudokuRecord>({
     enum: ['easy', 'medium', 'hard'],
     required: true
   },
+  gameMode: {
+    type: String,
+    enum: ['standard', 'irregular'],
+    required: true,
+    default: 'standard'
+  },
   timeSeconds: {
     type: Number,
     required: true,
@@ -56,25 +64,41 @@ const sudokuRecordSchema = new Schema<ISudokuRecord>({
   timestamps: true
 });
 
-sudokuRecordSchema.index({ userId: 1, difficulty: 1 });
-sudokuRecordSchema.index({ difficulty: 1, won: 1, timeSeconds: 1 });
+sudokuRecordSchema.index({ userId: 1, difficulty: 1, gameMode: 1 });
+sudokuRecordSchema.index({ difficulty: 1, won: 1, gameMode: 1, timeSeconds: 1 });
 
 sudokuRecordSchema.statics.getLeaderboard = function(
   difficulty: SudokuDifficulty,
+  gameMode: 'standard' | 'irregular' | 'all',
   skipCount: number,
   pageSize: number
 ): mongoose.Aggregate<ISudokuLeaderboardRecord[]> {
+  const match: any = {
+    difficulty
+  };
+
+  if (gameMode === 'standard') {
+    match.$or = [
+      { gameMode: 'standard' },
+      { gameMode: { $exists: false } }
+    ];
+  } else if (gameMode === 'irregular') {
+    match.gameMode = 'irregular';
+  }
+
   return this.aggregate([
     {
-      $match: {
-        difficulty
-      }
+      $match: match
     },
     {
       $group: {
-        _id: '$userId',
+        _id: {
+          userId: '$userId',
+          gameMode: { $ifNull: ['$gameMode', 'standard'] }
+        },
         username: { $first: '$username' },
         fullname: { $first: '$fullname' },
+        gameMode: { $first: { $ifNull: ['$gameMode', 'standard'] } },
         bestTime: {
           $min: {
             $cond: [{ $eq: ['$won', true] }, '$timeSeconds', null]
@@ -92,7 +116,7 @@ sudokuRecordSchema.statics.getLeaderboard = function(
     },
     {
       $addFields: {
-        userId: '$_id',
+        userId: '$_id.userId',
         winRate: {
           $multiply: [
             { $cond: [{ $eq: ['$totalGames', 0] }, 0, { $divide: ['$wonGames', '$totalGames'] }] },
diff --git a/server/routes/sudoku.ts b/server/routes/sudoku.ts
index 60b4553..0730e9c 100644
--- a/server/routes/sudoku.ts
+++ b/server/routes/sudoku.ts
@@ -51,34 +51,71 @@ router.post('/record', auth, async (req: Request, res: Response) => {
 router.get('/leaderboard/:difficulty', async (req: Request, res: Response) => {
   try {
     const { difficulty } = req.params;
-    const { page = '1', limit = '10' } = req.query;
+    const { page = '1', limit = '10', mode = 'all' } = req.query;
 
     const validDifficulties: SudokuDifficulty[] = ['easy', 'medium', 'hard'];
+    const validModes = ['all', 'standard', 'irregular'];
+
     if (!validDifficulties.includes(difficulty as SudokuDifficulty)) {
       return res.status(400).json({ error: '无效的难度级别' });
     }
 
+    if (!validModes.includes(mode as string)) {
+      return res.status(400).json({ error: '无效的游戏模式' });
+    }
+
     const pageNum = parseInt(page as string, 10);
     const pageSize = parseInt(limit as string, 10);
     const skipCount = (pageNum - 1) * pageSize;
+    const gameMode = mode as 'standard' | 'irregular' | 'all';
 
     const records = await SudokuRecord.getLeaderboard(
       difficulty as SudokuDifficulty,
+      gameMode,
       skipCount,
       pageSize
     );
 
-    const totalUsers = await SudokuRecord.distinct('userId', {
+    const totalMatch: any = {
       difficulty,
       won: true
-    });
+    };
+
+    if (gameMode === 'standard') {
+      totalMatch.$or = [
+        { gameMode: 'standard' },
+        { gameMode: { $exists: false } }
+      ];
+    } else if (gameMode === 'irregular') {
+      totalMatch.gameMode = 'irregular';
+    }
+
+    const totalCountResult = await SudokuRecord.aggregate([
+      {
+        $match: totalMatch
+      },
+      {
+        $group: {
+          _id: {
+            userId: '$userId',
+            gameMode: { $ifNull: ['$gameMode', 'standard'] }
+          }
+        }
+      },
+      {
+        $count: 'count'
+      }
+    ]);
+
+    const total = totalCountResult[0]?.count || 0;
 
     res.json({
       records,
-      total: totalUsers.length,
+      total,
       currentPage: pageNum,
-      totalPages: Math.ceil(totalUsers.length / pageSize),
-      difficulty
+      totalPages: Math.ceil(total / pageSize),
+      difficulty,
+      mode: gameMode
     });
   } catch (error) {
     console.error('获取数独排行榜失败:', error);
diff --git a/src/components/SudokuGame.tsx b/src/components/SudokuGame.tsx
index fb2ac12..d739e80 100644
--- a/src/components/SudokuGame.tsx
+++ b/src/components/SudokuGame.tsx
@@ -158,6 +158,7 @@ const SudokuGame: React.FC = () => {
         },
         body: JSON.stringify({
           difficulty,
+          gameMode,
           timeSeconds,
           won
         })
diff --git a/src/components/SudokuLeaderboard.tsx b/src/components/SudokuLeaderboard.tsx
index 7449a3b..62b596e 100644
--- a/src/components/SudokuLeaderboard.tsx
+++ b/src/components/SudokuLeaderboard.tsx
@@ -19,11 +19,13 @@ import EmojiEventsIcon from '@mui/icons-material/EmojiEvents';
 import { API_BASE_URL } from '../config';
 
 type Difficulty = 'easy' | 'medium' | 'hard';
+type GameMode = 'all' | 'standard' | 'irregular';
 
 interface LeaderboardRecord {
   userId: string;
   username: string;
   fullname: string;
+  gameMode: 'standard' | 'irregular';
   bestTime: number;
   totalGames: number;
   wonGames: number;
@@ -47,6 +49,7 @@ const DIFFICULTY_LABELS: Record<Difficulty, string> = {
 
 const SudokuLeaderboard: React.FC = () => {
   const [difficulty, setDifficulty] = useState<Difficulty>('hard');
+  const [gameModeFilter, setGameModeFilter] = useState<GameMode>('all');
   const [records, setRecords] = useState<LeaderboardRecord[]>([]);
   const [page, setPage] = useState(1);
   const [totalPages, setTotalPages] = useState(1);
@@ -55,14 +58,14 @@ const SudokuLeaderboard: React.FC = () => {
 
   useEffect(() => {
     fetchLeaderboard();
-  }, [difficulty, page]);
+  }, [difficulty, page, gameModeFilter]);
 
   const fetchLeaderboard = async () => {
     setLoading(true);
     setError(null);
     try {
       const response = await fetch(
-        `${API_BASE_URL}/api/sudoku/leaderboard/${difficulty}?page=${page}&limit=10`
+        `${API_BASE_URL}/api/sudoku/leaderboard/${difficulty}?page=${page}&limit=10&mode=${gameModeFilter}`
       );
 
       if (!response.ok) {
@@ -85,6 +88,11 @@ const SudokuLeaderboard: React.FC = () => {
     setPage(1);
   };
 
+  const handleGameModeChange = (_event: React.SyntheticEvent, newValue: GameMode) => {
+    setGameModeFilter(newValue);
+    setPage(1);
+  };
+
   const handlePageChange = (_event: React.ChangeEvent<unknown>, value: number) => {
     setPage(value);
   };
@@ -139,12 +147,27 @@ const SudokuLeaderboard: React.FC = () => {
         </Tabs>
       </Box>
 
+      <Box sx={{ borderBottom: 1, borderColor: 'divider', mb: 3 }}>
+        <Tabs
+          value={gameModeFilter}
+          onChange={handleGameModeChange}
+          centered
+          textColor="primary"
+          indicatorColor="primary"
+        >
+          <Tab value="all" label="全部" />
+          <Tab value="standard" label="标准" />
+          <Tab value="irregular" label="不规则" />
+        </Tabs>
+      </Box>
+
       <TableContainer component={Paper} sx={{ mb: 3 }}>
         <Table>
           <TableHead>
             <TableRow>
               <TableCell align="center" width="80px">排名</TableCell>
               <TableCell>姓名</TableCell>
+              <TableCell align="center">模式</TableCell>
               <TableCell align="center">最佳时间</TableCell>
               <TableCell align="center">总游戏次数</TableCell>
               <TableCell align="center">获胜次数</TableCell>
@@ -155,7 +178,7 @@ const SudokuLeaderboard: React.FC = () => {
           <TableBody>
             {records.length === 0 ? (
               <TableRow>
-                <TableCell colSpan={7} align="center">
+                <TableCell colSpan={8} align="center">
                   <Typography variant="body2" color="textSecondary" py={3}>
                     暂无排行榜数据
                   </Typography>
@@ -167,7 +190,7 @@ const SudokuLeaderboard: React.FC = () => {
                 const badge = page === 1 ? getRankBadge(rank) : null;
                 return (
                   <TableRow
-                    key={record.userId}
+                    key={`${record.userId}_${record.gameMode}`}
                     sx={badge ? { backgroundColor: 'rgba(255, 215, 0, 0.1)' } : {}}
                   >
                     <TableCell align="center">
@@ -181,6 +204,13 @@ const SudokuLeaderboard: React.FC = () => {
                         {record.fullname || record.username}
                       </Typography>
                     </TableCell>
+                    <TableCell align="center">
+                      <Chip
+                        label={record.gameMode === 'standard' ? '标准' : '不规则'}
+                        color={record.gameMode === 'standard' ? 'primary' : 'secondary'}
+                        size="small"
+                      />
+                    </TableCell>
                     <TableCell align="center">
                       <Chip
                         label={formatTime(record.bestTime)}