[Retros] Massacre proofgames

[Joost de Heer]

Mario Richter wrote:

> Joost> In orthodox chess, there are no exact massacre proofgames

> Joost> ending with only the kings. 

> 

> I'd like to repeat Andrew's question: Do you have a source for

> your claim?


No, but I highly doubt there'll be a long dualfree orthodox proofgame 
ending with only kings. So perhaps my wording should read '[..]there are 
almost certainly no exact [...]'.

Joost