2. Openings - All beginners should focus on fighting for the central squares c3, d4, c5, f4. If you have 3 of them under control, you clearly have an advantage! Therefore, there is a limited scope o…

It will take many hours of work for describing first steps. I minimized goals: I am about to explain basic principles which would be valuable for studying any book or watching any game. ------- 1…

Hi all, First of all, again thank you very much for sharing the mistakes. The puzzles below (not all of them, see commentary) will be disabled in a few days! 10x10 draughts: 89 - Incredible tha…

送这么多子?

这是什么废话？???

@Twoblackcheckers The opening theory between "straight" and "backwards jumping" variants is not compatible (but I like all variants,). While in "straight" variants, playing single corner opening b…

S1season：我们将举行3+2的比赛，在这个团队的人数满12之后，并且在线人数不小于10。队长将会举办S1赛季的比赛，公开，全程共2小时。

@jeffreyq2 {in alphanumeric notation} 2. .. c3:a5 3. e5-f6 e7-d6 (forced, otherwise it is lost due to material deficiency or huge positional disadvantage: normally, in Russian puzzles that option…

In English opening white can meet QID with Sämish setup. Because black placed bishop on b7, white can't develop kingside knight naturally with Nf3, and one of options would be to play f3, and at good…