Chess Puzzle #9969

CHESS PUZZLE, FEN r5k1/2p3pp/p2p4/1p1bP3/7Q/1P6/P1Pr2PP/R4RK1 b - -

Added by:	d6s3j
Added on:	24-Mar-09
Description:
Difficulty:	chess puzzle r5k1/2p3pp/p2p4/1p1bP3/7Q/1P6/P1Pr2PP/R4RK1 b - -
Attempts:	1514
Solved:	1284 (84%)


Black to move, mate in 3

Comments: (14) » Last

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fezzik
01-Oct-14, 00:14

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Good example ...

This is a good example of why there should only be one move forgiven per puzzle.

It's a simple puzzle with a discovered check that forces mate. The solve rate should reflect the per cent of people who saw that they had to block the Q in order to get the mate in the requisite number of moves.

alphadelta
01-Oct-14, 00:26

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I agree

I agree, fezzik. I didn't spot that I needed to block the Queen and got the second move more or less by trial and error - it was clear that it had to go down the g file. But I still solved the puzzle 'excellently'; that can't be right.

sirissac
01-Oct-14, 02:23

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I think this is just a good example of a puzzle not suited for 5 mistakes. If a puzzle had many more caveats and was not a "good example of why there should only be one move forgiven per puzzle" other people could argue it's a good example of why there should be more than one forgiven move.

Honestly though, a no mistake policy would make more sense to me. Then it's not about how many mistake are acceptable but about doing it right in the first place. After all a forced mate is about having a solution to every line and if you don't get to guess safely then you more or less have to check every line to be certain you have it.

Nice puzzle anyway.

paviland
01-Oct-14, 04:47

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Some Care Needed

A good example of Morphy's Mate:-
en.wikipedia.org

fezzik
01-Oct-14, 06:03

Comment deleted on 01-Oct-14, 06:04

fezzik
01-Oct-14, 06:04

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Siri...

I agree in principle to the no mistake policy. But as I said, there are times when the site doesn't recognise the move I make on my phone and I also make an occasional typo, especially when using my phone. It makes sense to have a grace for a single error.

seif73
01-Oct-14, 06:39

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nice and simple agree with first post that you have to block queen which I saw so he doesn't come in the way. very nice.

burlystump
01-Oct-14, 07:16

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Fewer rules more haiku

As wonderful as it must feel to get credit for solving a puzzle after missing a move or two I'd much rather see the programmer(s) create a haiku based contextually relevant comment when I make a mistake on a puzzle. A consolation prize for not solving the puzzle perfectly.

pony_boy
01-Oct-14, 09:38

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More Haiku?

Yes, the strictest form of poetry on the planet. 3 lines, 17 syllables, Nature theme. I love the analogy. Nice puzzle for us beginners.

hellofriesen
01-Oct-14, 11:33

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forgiveness

I blocked the Queen. No mistakes. I agree with the zero mistake policy, but in the end I think the solved rate is kinda meaningless weather you are allowed zero or 100 mistakes to get the title. Because as far as I know the title of having solved it excellently or not is meaningless. What matters to me anyway is how well I've been able to perform and learn. The mistakes while entering in the phone is exactly why I don't enter real game moves on my phone. For a puzzle, sure, if the phone glitches, I'll still consider myself as having solved excellently, I don't really care what Gameknot says. It's our actual games that determine the real measurable results.

rook2d2
01-Oct-14, 11:46

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Subject on mistakes

All chess players of all standards miss sacrifice ideas leading to winning or mating nets so to all aspiring chess players always look out for sacrifices even when you have not planned them ,and we might find we can play a little like the greatest sacrificial player of all time ,the one and only mikhail tal or had an even score with the legendary robert fischer

rook2d2
01-Oct-14, 11:49

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above comment

last comment should read who had an even score with robert fischer,sorry about english ,i did attend school but it was a while ago

billydjr
01-Oct-14, 12:54

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Nice puzzle.

Very nice twist to this one. At first I thought I had to block the Q and the R, until I realized the B could just simply take the R. Anyway, it was interesting to think along that axis (along with the discovered check). Thanks for posting.

schizoidman
16-Apr-25, 16:38

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rate your own

My goal, when I try to solve a puzzle is analyze ever defensive try from start to finish and see the right response. So, even I solve it with no mistakes, if the defensive response is one I failed to analyze prior to making my first move, I am disappointed, even if I do the analysis from that point and find the correct response. As long as Gameknot uses the same solve rate criteria in creating their statistics, it doesn't matter that much, since it still gives you an idea of how hard the puzzle is compared to others in their database.
In a real game, you should try to analyze every response. Because if you miss one it could mean losing.

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