14 Aug 06
2 edits
Originally posted by ThudanBlunder1.Rxa7 (2.Ra8) 1...d6 2.Ra8+ Kd7 3.Rxb7 (4.Rcxc7) 3...d5 4.Rxd5#
White to play.
1...e6 and 1...f6 are refuted by 3.Rxc7 and 3.Rxd7 respectively.
It looks like 1.Rxh7 works, with the same idea.
Also, there are duals such as 1.Rxa7 d6 2.Ra8+ Kd7 3.Rxe7.
Edit: Oops, 3.Rxb7 does not work. 3...e5!
14 Aug 06
Originally posted by BigDoggProblemI expect 1.Rxb7 or 1.Rxg7, avoiding any 'oops'es.
1.Rxa7 (2.Ra8) 1...d6 2.Ra8+ Kd7 3.Rxb7 (4.Rcxc7) 3...d5 4.Rxd5#
1...e6 and 1...f6 are refuted by 3.Rxc7 and 3.Rxd7 respectively.
It looks like 1.Rxh7 works, with the same idea.
Also, there are duals such as 1.Rxa7 d6 2.Ra8+ Kd7 3.Rxe7.
Edit: Oops, 3.Rxb7 does not work. 3...e5!
14 Aug 06
Originally posted by Mephisto2According to my solving program, 1.Rxa7, Rxb7, Rxc7, Rxg7 and Rxh7 all work.
I expect 1.Rxb7 or 1.Rxg7, avoiding any 'oops'es.
The line I missed was 1.Rxa7 d6 2.Ra8+ Kd7 3.Rxd6+!! with Rook mates coming from three different directions, depending on how Black captures.