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| Jul-12-10 | | zanshin: Nice mate and nice puzzle. I hope this is smothered mate week. |
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| Jul-12-10 | | felixd: It's pretty easy, but a little bit harder than the usual Monday puzzles. I just wish I could find a beautiful mate like this one in one of my games. |
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| Jul-12-10 | | Marmot PFL: Another quick loss for NN, but he always comes back for more. |
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| Jul-12-10 | | awfulhangover: Must be a wonderful feeling to sac the Queen and mate with two donkeys! |
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Jul-12-10
 | | Patriot: Although "very easy", the pattern did not jump out at me and only by looking at forcing moves was I able to solve this. Even after considering 20...Qg2+ 21.Rxg2, it took a moment to see that 21...Nh3 is mate since all squares are covered. It probably wouldn't hurt to do some type of board vision practice using knights, although I wouldn't spend a whole lot of time on it. The mate in this puzzle seems pretty rare. |
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Jul-12-10
 | | TheaN: Monday 12 July 2010
The day after the lost final (:'()
<20....?>
Target: 0:40;000
Taken: 0:26;420
Material: White up, ♗ vs 2♙
Candidates: Qf1†, Qxh2†, <[Qg2†]> -ML-
I was looking a bit too long at Qf1†, then thought it had to be Qxh2† only to notice then Black can let the Knights do the work with: <20....Qg2† 21.Rxg2 Nh3‡ 0-1> nifty. Time to check. |
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| Jul-12-10 | | gropek: Black to play 20. ... ?
NN vs Blackburne
Difficulty: Very Easy
Well, in this position, black already sacrificed a piece, and he has enough army around white king, so, it's obvious
we are looking for a mate.
To find this kind of mate, you just have to see the squares that the king can go to, and try to manage in a way to
checkmate him. For now, the king cant move, but is impossible to check mate right now. After looking for possibilities,
you see that the only check that is safe is with the knight on h3, but the queen is there right now. And also, the knight
on h3 will control f2 and g1, while the knight on g3 will control f1 and h1. But that leaves the king one scape square,
the g2 square!
Now, if you mix all that together, you can find the move: 20. ... Qg2+!!
Sacrificing the queen, in order to free the h3 square, and, at the same time, cover the white king scape square,
after RxQ
21 . Rxg2 Nh3#
Very beautiful check mate! |
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Jul-12-10
 | | johnlspouge: Monday (Very Easy)
NN vs Blackburne, 1871 (20...?) Black to play and win.
Material: Down 2P for B. The White Kg1 is stalemated. Examination of all checks is mandatory. Candidates (20...): Qg2+
20…Qg2+ 21.Rxg2 Nh3# |
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| Jul-12-10 | | Brandon plays: I used to think that these types of problems were difficult to see. The difficult thing to see is a continuation that goes through multiple lines that is not forced. Qg2+ Rxg2 Nh3# |
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| Jul-12-10 | | mworld: <once> a very informative post. |
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Jul-12-10
 | | kevin86: Here is what happens when two Cavaliers play together. We have yet to see what happens when three "Heat" play together. |
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| Jul-12-10 | | jimmycook: I know this is outside the puzzle as presented but instead of 20...d4, could white have survived with 20...Rg2? Might have been interesting... |
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Jul-12-10
 | | chrisowen: Black burn down the house started 17..Nh5. Nine 9.Ng6 red balloons nights together then party again king gone without luft 21..Nh3#. The racing corvette it boom ailing white who's dunnroaming after Qg2+. |
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Jul-12-10
| | YouRang: Not quite as obvious as most Monday puzzles, and I didn't see it until the 2nd time I looked at 20...Qg2+. The first time it didn't "click" that the knight at h3, besides giving check, also seals off f2. Indeed, this is a very pretty and efficient mate with knights, following a beautiful clearance sac with the queen, which (1) vacates h3 for the knight, and (2) forces white's own rook to do the job of blocking the king's escape to g2. |
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| Jul-12-10 | | WhenHarryMetSally: queen sacrifice! gottit! |
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| Jul-12-10 | | amaurobius: I spent perhaps a couple of minutes without getting it, so then I thought I'd check the possible queen sacs, which is of course cheating rather than solving it properly. Wrt Blackburne's annotation at white's twentieth, I guess this ranks my level at slightly below beginner. |
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Jul-12-10
| | ZUGZWANG67: 20...Qg2+ and 21...Nh3 mate. As most of us, I guess, I already have this one in my inventory. |
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Jul-12-10
| | ZUGZWANG67: I've been reviewing and studying mating patterns for some weeks so this one was easy to me. 
click for larger viewOnce one understands that the Ns together cover all d2, d1, e1, f1, g1 and g2, all that remains is getting the appropriate W pieces on e2 and f2. And it doesn't matter wether the K stands on e1 or f1. Or course, there is some variants:
click for larger view
click for larger viewI think that by spending time on mating paterns where a Q plays the central role, we tend to neglect those minor piece mate patterns. Yet quite often the Q merely becomes the luring piece that makes patterns such the aboves possible. |
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| Jul-12-10 | | patzer2: Today is Monday, and 20...Qg2+! makes a sham sacrifice of the Queen for mate-in-two. |
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| Jul-12-10 | | Nullifidian: 20... ♕g2+ 21. ♖xg2 ♘h3#
I remembered seeing this at once. It's such a famous position. |
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Jul-12-10
| | lost in space: 20...Qg2+ 21. Rxg2 (foreced) Nh3#
Took me longer than usual on Monday. |
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| Jul-12-10 | | caissafan1963: Has anyone ever seen a game that NN won? |
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Jul-12-10
 | | Phony Benoni: Quite a few! NN has been winning games for 320 years! http://www.chessgames.com/perl/ches... It took him a while to get started, though, as he had a 293-year losing streak before his first victory. |
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| Jul-12-10 | | MaxxLange: NN could have tried 14...Be3, even after missing the refutation of Black's absurd sacrifice. He'd end up with two Bish for Rook and Pawn, provided that he can hold his King |
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| Jul-12-10 | | wals: With a LSB for two pawns White stumbled, 18.Rf2 -1.00. Analysis by Rybka 3 1-cpu: suggests-
1.  (0.40): 18.Qf2 Qh3 19.Rg1[] b5 20.a3 Kh8 21.d4 f6 22.Rg4 Rfd8 23.Rdg1 g5 24.d5 Ra6 25.Ba2 Ng7 2. (0.40): 18.Rg1 Qh3 19.Qf2 b5 20.a3 Kh8 21.d4 f6 22.Rg4 Rfd8 23.Rdg1 g5 24.d5 Ra6 25.Ba2 Ng7 3. (0.40): 18.Qe1 Qh3 19.Rg1[] b5 20.a3 g6
White fell on its sword, 20.d4 -#2.
Rybka suggests -
20.Rg2, -1.00. |
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sac: 13...Bxh3