A chess problem, in which both Kings are mated, having usually two help-mate solutions. In one solution Black plays first and helps White to mate the Black King. In another solution White plays first and helps Black to mate the White King.
ECHESSPEDIA
Quotes of the Day
My chess method is without formulas, without orthodox thinking. I always explain that chess is an art and that there are no definite judgments.
Lev Polugaevsky 1990 NIC
Drawing general conclusions about your main weaknesses can provide a great stimulus to further growth.
Alexander Kotov
If the 12th game (from the match Carlsen-Karjakin)… were a restaurant dish, I would send it back to the chef.
Nigel Short 2016
I still think people can learn at any age – I’m actually sure about that. It’s just that the ceiling is lower for how far you want to go.
Magnus Carlsen 2016
For goodness’ sake, how could Kasparov, after all his matches against Karpov, support him in the FIDE President elections? What sort of unprincipled person do you have to be? I would never understand that.
Viktor Korchnoi 2012