Monthly Quadruple Sudoku leaderboard

1

wnf

42220

2

AlexanderK

9615

3

den2

5265

4

reen25

4570

5

RiGuang

3810

6

Timmer

1300

7

BallSudoku2006

745

8

Pennyiw

660

9

elephantbird

630

10

Sussa

555

11

tfunk

550

12

Lenore

330

13

PDN777

280

14

Bennybubu

270

15

Jonathan

195