It's 100th Botvinnik's today! 6th world chess champion made great contribution to the theory of openings and one of these openings is Caro-kann. So we started two new matches for you to celebrate this tremendous date: match with Advance variation, Botvinnik-Carls Defense, all games start with 1.e4 c6 2.d4 d5 3. e5 c5 and second one with Panov-Botvinnik, Herzog attack.