NickFaulks wrote:Rapport found a way to lose a drawn R v R+N. Quite extraordinary.
Not so very extraordinary in practice. Inter alia, this ending has been won by Kasparov against Polgar at Dos Hermanos 1996, with Polgar's WK trapped at h8 and Black playing Ne8!, the same idea as just quoted by Ian Thompson.
It has also been won by Carlsen against Erwin L'Ami at Tata Steel 2011. The latter example was sneaky as the loser's king was not in the corner.
I gave it once as an Evening Standard puzzle: WK e5, WR g1, WN f5; BK g4, BR a2. The black king is in check; what is the only move to lose?
Not really relevant, but I am now obliged to look at the Carlsen v L'Ami diagram every single day. This is because I accidentally once placed the puzzle diagram among the choices on my laptop wallpaper, put it on the home page, and then found I could not restore the home page to blank as I wished. Microsoft/Google allows me to change to other types of wallpaper, but apparently lacks a facility to remove the wallpaper entirely from the home page. If any cyberliterate reader can suggest a simple solution (nothing complex please) to deleting L'Ami's defeat I'd be grateful.