16545 Players currently online!
Man vs. Machine - good luck!
Turn-based games at any time!
Vote for the best move to win!
Do you have what it takes?
Sharpen your tactical vision!
Get advice and game insights!
Learn from top players & pros!
View millions of master games!
Your virtual chess coach!
Perfect your opening moves!
Test your skills vs. computer!
Find the right private coach!
Can you solve it each day?
Bring it all together!
Beginners, start here!
Make friends & play team games!
News from the world of chess!
Search all Chess.com members!
Find local clubs & events!
Who's the best of your friends?
Read what members are saying!
White takes back his last move, then he mates in three.
[Rafael Moisevic Kofman, 1958, published on "Schachmatnyi Bjulleten"]
White takes back 0-0-0 and then plays 1.0-0-0, 2.dc or 2.Rxd2 and 3.Rd8# (1...Kf8.2.Rd8#). Black can`t castle because of lack of pieces to allow the following moves: ab,bc,cd,de,ef,ef,fg,g8R.
^ Your solution seems like the only logical one (since there is no mate in 3 if Black CAN castle, clearly) however why must 0-0-0 have been the last move?
"White takes back his last move, then he mates in three" means that white is free to choose his last move, that is no move must be the last move. So, if white, for example, takes back Kb1-c1 and plays 1.dc threatening 2.Rd8#, then black plays 1...0-0 and no mate in three.
Got it. So you could say we are looking for a "possible" solution rather than one which must be legal. Nice one!
Correct, maksym1. Congratulations :)
New at insulting the disconnectors, please help
by egoole a few minutes ago
7/3/2015 - Imprisoned
by simenol 9 minutes ago
When a coward refuses to resign.......
by BattleChessGN18 10 minutes ago
We need more amateurs to post their annotated games.
by sanath1987 16 minutes ago
1000 Worst Things To Do While Playing Chess
by ChessPlayinDude47 26 minutes ago
The Block List
by ForeverHoldYourPiece 35 minutes ago
Chronos Chess Clocks are Back!!!
by guardianx9 39 minutes ago
by tkbunny 42 minutes ago
What openings should I use with black that are less passive?
by mmmmmmmkh 43 minutes ago
Post your best miniatures here
by tmkroll 47 minutes ago
Why Join | Chess Topics |
Help & Support |
© 2015 Chess.com
• Chess - English
We are working hard to make Chess.com available in over 70 languages. Check back over the year as we develop the technology to add more, and we will try our best to notify you when your language is ready for translating!