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| Oct-24-17 | | AlicesKnight: No spectacular finish here, just exchange of Qs followed by f4, driving the R from defence of the B and leaving White a piece up. A good one for newish budding players learning tactical awareness. |
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Oct-24-17
 | | Once: It's our old friend PPP - piece protects piece. The danger with PPP is that the protector could be driven away, pinned or exchanged. In today's position, the black Bf4 is a PPP. It is attacked by the white knight and defended only by the black queen. We might be able to win the Bf5 if we could drive the black queen away. We need to do something fairly quickly as black threatens to exchange queens and then move his bishop out of the knight's range. So if we can't deflect the queen, can we exchange it? That's when we see that 23. Qxe5 Rxe5 24. f4 brings us to here: 
click for larger viewThe mighty rook has to run away from the peasant pawn stabbing him in the foot with a very sharp dagger. That removes the protection from the black bishop. PPP strikes again. |
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| Oct-24-17 | | yadasampati: To Gregor Samsa Mendel: <This strikes me as the sort of puzzle position that might come up in an actual game> For your information: this is from an actual game. Just look above the board :-) |
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Oct-24-17
| | Once: All of the POTD puzzles on this site come from actual games. I think Gregor's point is that this is the sort of everyday tactic that appears in many actual games. This sets it apart from the flashy queen sacrifices that we often get on CG. While these flashy finishes may have come from actual games, they are probably not typical of most games particularly at club or casual level. I would hazard a guess that most games between beginners are won or lost due to pieces being left en prise or simple pin or fork tactics. That's why I agree with Gregor that this puzzle is more typical of everyday chess than the queen sacrifices that we often see on Mondays and Tuesdays. |
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| Oct-24-17 | | psionl0: @Once I agree. This is a much more commonplace problem than the usual "flashy" problems we see. It is also much more instructional. As well as highlighting the risks of PPP it also serves as a reminder of how clumsy the rook is. (Alas I missed that pawn move). |
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| Oct-24-17 | | malt: Like <Lost in space > Tried 23.Re3 Be4 first.
then 23.Q:e5 R:e5 24.f4 Re4 25.N:f5 |
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| Oct-24-17 | | Ratt Boy: I join the crowd that settled for an exchange with Re3. D'oh. |
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Oct-24-17
 | | Willber G: "Black Foreest get 0" |
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| Oct-24-17 | | avidfan: 11...Bb7xd5 is better than the strategically weak
11...e6xd5? <blocking> the line of sight on the long b7-g2 diagonal for Black's Bishop also doubling and probably isolating the pawn on d5 
click for larger view |
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| Oct-24-17 | | ChatGrognon: Happy to see I missed with... Re3 : ) (not alone) |
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| Oct-24-17 | | BOSTER: 23.Qxe5 Rxe5 24.f4 it is not easy to see ( at least for me).
It requires the deep chess understanding.Protection by pieces
very often has disadvantages.This is why the pawn is the best to protect the piece. |
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| Oct-24-17 | | johnlspouge: < <Ratt Boy> wrote: I join the crowd that settled for an exchange with Re3. > According to Stockfish, best play after 23.Re3 is 23.Re3 Be4 24.Rd1 Qb8
is =0.05 P for White. If instead,
24.Nc6 Qd6 25.f3 Rac8
is -1.00 P for White.
A chess engine is a great antidote to human optimism. |
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| Oct-24-17 | | DrGridlock: I too thought that Re3 would work.
To those that write that Re3 picks up the exchange - it doesn't. After:
Re3 Be4
Rd1 f5
f3 f4
White doesn't even get the exchange out of the Re3 line. |
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| Oct-24-17 | | Patriot: This "easy" problem required some thought. Either way, I always like to take stock in what factors exist that have potential for tactics. This is a very important skill to develop since when playing you need to sense whether something could be there or it's just a waste of time to look for something as time is important. I wasn't quite sure but the battery on c8 "could" loosely do something (especially if the black king didn't have h7 available). Re3 sets up a skewer type set up. And then there's the loosely defended bishop, which also guards c8. Also keep in mind the white queen is en prise. I also like to take a special look at what knights can do in one move because they are very tricky and easy to overlook. The back rank mate wasn't there even though there could be some advantage to 23.Qxe5 Rxe5 24.Nxf5 Rxf5 25.Rc8+ Rxc8 26.Rxc8+ Kh7 27.Rd8 or 27.Rc7. 23.Re3 could win the exchange if 23...Qxd4 24.Rxe8+ Rxe8 25.Qxe8+ but that isn't forced since 23.Re3 Be4 24.f3 Qxd4 etc. The only thing left is to try removing the guard: 23.Qxe5 Rxe5 24.f4 Re4 25.Nxf5 Rxf4 and the knight is not lost. A further look and white could play 26.Ne7+ followed by 27.Nxd5. |
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Oct-24-17
 | | keypusher: <johnlspouge>
<A chess engine is a great antidote to human optimism.> I'd nominate that quote for a chess edition of Bartlett's. |
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| Oct-24-17 | | swclark25: Got it today, but hadn't heard the term PPP before. I like it! 23) Re3 seems to lose the Knight with Qxd4. Am I missing something? |
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| Oct-24-17 | | BOSTER: <Am I missing something?>.Yes. |
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| Oct-24-17 | | BOSTER: <Raft Boy>:<I join the crowd>.
We see the tree and miss the <Foreest>. |
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| Oct-24-17 | | swclark25: <BOSTER> Olga and some more time helped me see that 23.Re3 Qxd4 24.Rxe8+ Rxe8 25.Qxe8+ Kh7 doesn't really help. |
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| Oct-24-17 | | Mr. President: Don't grab 'em by the P...
It's a total disaster. |
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Oct-24-17
 | | Bubo bubo: A bad day for me: missed this one, and, even worse, the despicable Prince Andrey Dadian of Mingrelia is POTD again :-( |
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| Oct-24-17 | | patzer2: <Once: It's our old friend PPP - piece protects piece.> I'll share that acronym with my grandsons who are students of the game. It's close to another acronym/phrase they enjoy repeating from one of their chesskid.com instructional videos -- PP on the PP (i.e. put pressure on the pinned piece). |
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| Oct-24-17 | | Patriot: <patzer2> LOL-I think I will go with something else like "undefended or loosely defended pieces". :-) |
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| Oct-25-17 | | thegoodanarchist: Reminds me of that scene from the movie Foreest Gump: Resign, Foreest, Resign! |
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Oct-25-17
 | | kevin86: The bishop is chased from his protector. |
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