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Problem ID: 0052617
Such a good problem. As much because at move 7 for black there are two viable options for escape Kb5 and Kb7, and they both have similar themes.
Cant believe Ive got it - endgames can sometimes appear to be easy and then they are really tricky
If chess were tennis, the player able to play like this would have "soft hands."
This pushed my calculation abilities. The initial move needs to be calculated all the way to the end of the 10 move line in order to justify that it is not a draw. Also, moves 3 and 7 of the line were very hard for me to find during the calculation. So non-obvious moves + length calculation = the hardest problem I have solved here, and I think this may have a deceptively low rating at 2442.
This is the best problem I have ever seen till now. Didn't know that I had the ability to calculate so many moves. I can't believe that I got all the moves right. At the end I got only +9 points.
BUT STILL THE NEED FOR AWESOMENESS WAS IN THIS PROBLEM!
Very long and difficult to get all moves
Is this a mistake by black or is there a reason black's queen fled to d6 rather than capturing the knight on d8? White was in position of winning black's rook by skewer I thought at least black would want to capture white's knight in exchange. Was moving to d6 a better move or a mistake?
I just don't get it. After all of those moves white wins a rook and the black king can capture the knight on the next move. White could have captured the rook for free on the 5th move when the white rook skewer'd the king and rook on the 7th rank. Why the extra 15 moves just to still end up getting the rook and losing the knight in the process? I'm sure there's a reason I just don't see it.
I think you completely missed the main theme of the puzzle. The reason why you have to calculate so deep is to find a win, taking the rook initially is stalemate.
Thanks for backing me up, that's what I was implying in my last comment.
It may also be called "doubles". Rook on the baseline, knight at the net .
It's ironic, because that stalemate was the main point of the whole problem. If it looks too simple, look harder.
Absolutely computer problem. Rather boring for a human. And if I am boring I can't get it. It is my weakness.
I disagree with you, Andrey. A computer problem would be one of those 200+ move forced mates you see in the endgame tablebases. This problem is much shorter and is a reasonable tactics puzzle. It is enjoyable for me because of the razor-thin line that White has to walk to keep the win alive. Pretty exciting considering the small number of pieces still on the board!
On the practical side, these kinds of problems build your overall intuition for how pieces work together - one of the most important things in chess!
I cant believe i got it
This is a beautiful study. Really makes you visualise. I did not see all the way to the end from move 1 but the first couple of moves are the only way to play for a win, then move 3 there are two choices for N checks to avoid the stalemate (cant let black's R start checking) but only one (Nf7+) can make progress, similarly with 5.Nc4+. After that saw to the end.
After accurately playing six moves, I spent three minutes.
I figured up that if I start burning time and getting everything right, I'll end up with a perfect solution and a 20% score - while as I already got six moves right, I must have most of it as it is, so if I play anything quickly, I'll get something higher than 50%.
I was right - 53% and one point up.
Taking advantage of the quirks of the system
No offense, but by the sound of it you're only doing Tactics Trainer for the points - and not for actually solving the tactic from start to finish, if you know what I'm saying. But to each his own, I suppose.
Either way this tactic is amazing. I was able to get most of the moves right, however, not by seeing it to the very end, but rather by elimination of moves that do not work. Got a little too hasty at the end though, and messed up on move 7. Shame.
The sideline with 6... Kb5 is quite nice as well! it really is impressive how each and every move to win the game is completely unique.
As a side note, I think that if black played 3... Kc7, the pass rate would be even lower. 4. Nd6 looks totally winning - if not for black's brilliant defence 4... Kd8! - yet another stalemate defence, and the win is spoiled! :-)
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