[Retros] DR vs forced ep: what rule predominates?

Joost de Heer joost at sanguis.xs4all.nl
Wed Aug 29 15:44:04 EDT 2007

I just remembered that something like this already exists:

8068 - Alexander Kukush
Feenschach 135
5+6. Mate in 1 (AP, PRA)

Black tries to castle, thus proving it's possible that he didn't move
last. But: 1. .. fe6 2. g6 e5 3. Kg5 e6 4. g4!! and now is 4. .. Be7
mate, and other bishop moves result in stalemate. So black can't prove
he didn't move last. So mate in 1 with 1. Qc8#.


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