21 Jun 06
http://i19.photobucket.com/albums/b177/gallicrow/Chess_Problem_1.jpg
White to move and mate in three.
Those of you who have read the "Game 2191106" thread will obviously know the trick.
As far as I know this problem was composed by Tim Krabbé, who, incidentally, runs possibly the best chess site on the internet: http://www.chesscafe.com/
21 Jun 06
1 edit
Ok. Not much interest here, so I'll give the solution:
Key: 1. e7
A) 1. ... g5
2. e8=R+
A1) 2. ... Kf3
3. o-o mate
A2) 2. ... Kd3
3. o-o-o mate
B) 1. ... Kf3
2. e8=R
B1) 2. ... g5
3. o-o mate
B2) 2. ... Kg2
3. o-o-o-o mate
C) 1. ... Kd3
2. e8=R
C1) 2. ... g5
3. o-o-o mate
C2 2. ... Kc2
3. o-o-o-o mate
21 Jun 06
Originally posted by Red NightThe "old rule" was never a rule, only a flaw in the rule book.
Is this from the game? Or is this just a puzzle using the old rule?
Has been used only once, and then not without heavy discussion.
The rule was rewritten when the fault was recognized.
21 Jun 06
Originally posted by leisurelyslothApparently in 1903 or 1904, in a Master's game, one of the players castled using a promoted pawn turned into a rook on e8 and a king on e1.
"old rule" ??
The Rook ended up on e2 and the King on e3.
Because the Rook on e8 and the King on e1 had never moved they were able to castle under the rules as written at the time. This was an unintended consequence of a poorly written rule and the rule was quickly re-written.
I would love to see the game in question, as it is hard to imagine the situation where it would make sense.