1. d2d4  1... d7d5  2. g1f3  2... g8f6  3. e2e3  3... c7c5  4. d4c5 [%c_effect c5;square;c5;type;Interesting;persistent;true] By now we are used to queen's pawn sidelines in world championship matches. Both Ding and Ju showed that this is just as viable a path as fighting for advantage in the main lines. 4... e7e6  5. b2b4  5... a7a5  6. c2c3  6... a5b4  7. c3b4  7... b7b6  8. f1b5  8... c8d7  9. b5d7  9... b8d7  10. a2a4  10... b6c5  11. b4b5 I have a great friend (and a strong amateur chess player) who has always been a devoted fan of the Noteboom Variation. He felt invincible with these passed pawns. I wonder how he feels now that Ju is showing the world that it's possible to play the line with White, with an extra tempo. I also have a good friend, GM Gilberto Milos, who loves playing with central pawns: he is probably not very impressed with White's play. 11... d8c7 A rare move that has been played in correspondence games, but the game will transpose to a more common position later. Black has various tries here: 12. c1b2  12... f8d6  13. e1g1  13... e8g8  14. b1d2 The game has transposed to a known position, played in nearly 30 games. 14... f8c8  15. d1c2  15... c5c4 [%c_effect c4;square;c4;type;Mistake;persistent;true] This is a mistake, since now White is able to advance the dangerous pawns. 16. b2c3 [%c_effect c3;square;c3;type;GreatFind;persistent;true] The pawns are ready to move forward. It's exactly because of this that my dear friend likes Noteboom positions. 16... d7c5  17. a4a5 Only this is a new move. 17... c5b3 [%c_effect b3;square;b3;type;Interesting;persistent;true] An interesting attempt to muddy the waters. White's play is easy after the alternatives: 18. c3f6 [%c_effect f6;square;f6;type;Mistake;persistent;true] A big mistake. Ju probably evaluated the resulting position incorrectly or missed the tactical idea of giving up the a-pawn. 18... b3a1 [%c_effect a1;square;a1;type;GreatFind;persistent;true] 19. f6a1  19... c7a5 The most natural move. 20. c2c3 