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| Jan-12-10 | | TheBish: Wow, ok... It was much easier than I was making it, and I need more sleep! But my line still wins! |
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| Jan-12-10 | | ChessKnightsOfLondon: Not obvious at first as I was looking for a trick with Whites Knight in a dangerous position. But it did not take long to see that 23. h4 wins the Queen. The Queen only has two squares and moving to d2 will give white the chance to play 24. nf6+! winning the Queen! |
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| Jan-12-10 | | jia: Obvious that it was queen trap since:
1) It's suppose to be an easy puzzle
2) Black queen has few safe squares
3) No obvious mates
h4! Saw it immediately. |
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| Jan-12-10 | | zanshin: I finally got <23.h4> but spent a lot of time trying to pick off the Knight on b3 with Rxd8 - Qb6 combinations. |
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Jan-12-10
 | | agb2002: Material is even. Black threatens 23... Rxd6. The black queen doesn't have too many available squares. Therefore, 23.h4: A) 23... Qd2 24.Ne7+ Kf8 25.Rxd2 Rxd2 (25... Nxd2 26.Nd5 + - [Q vs R]) 26.Qh4 + - [Q vs R]. B) 23... Qh5 24.g4 Qxg4+ (24... Qxh4 25.Qxh4 Rxd6 26.Qe7 + - [Q vs R]) 25.fxg4 Rxd6 26.Qc2 (26.Qg3 Nd4 27.Qxe5 Nf3+ - +) Nd4 27.Qc7 + - [Q vs R]. C) 23... Rxd6 24.hxg5 + - [Q vs R]. |
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| Jan-12-10 | | CHESSTTCAMPS: Material is even, with white on the move and not much evident positional advantage other than a superior knight position and a strong Rd6. This is the kind of position where a reasonably good player might play 23.Rxd8+(??) and then thump the forehead with a closed fist. The vulnerable Qg5 presents a one-move tactical opportunity for white: 23.h4! takes advantage of the queen's trapped position and leaves black with no defense, given that there are only two flight squares to consider. A) 23... Qh5 24.g4 wins the Q.
B) 23... Qd2 24.Ne7+ Kf8 25.Rxd2 Rxd2 26.Qe3 wins at least a Q for a R and even more material goes if black tries 26... Rad8 27.Nd5 Rxb2 28.Qc3. Time to check. |
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| Jan-12-10 | | WhenHarryMetSally: I think I have it!
The black queen is trapped. She has little or no squares to move because of the white rook and the white knight. All it takes is the h file pawn push to h3 and black is pretty much finished. Time to check. |
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| Jan-12-10 | | WhenHarryMetSally: h4 sorry |
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| Jan-12-10 | | RonB52734: <Once> Actually, looking at potential checks, captures and threats helped me find this one. I wanted to see if I could remove the defenders of the black Rook on d8 to create an eventual Rxd8#, and that started me thinking about poking the black Queen off of her diagonal. <agb2002> there seem to be some errors in your (A) line, specifically the two alternate moves for white at 26 don't seem right. |
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Jan-12-10
 | | johnlspouge: Tuesday (Easy)
Motylev vs B Ivanovic, 2000 (23.?) White to play and win.
Material: Even. The Black Kg8 has 2 legal moves, both dark squares on the back rank, and is vulnerable to checks from Nd5 and Rd6. Both the Black Nb6 and Qg5 are loose. The White Rd6 attacks Rd8. The defender, Ra8, depends on Qg5 for support, if White forks Nb3 and Rd8 with Qf2-b6. Thus, the Black Qg5 bears a burden, so White can overload Qg5 with 23.h4. In fact, because of Rd6, the Black Qg5 has only 1 flight square, making the candidate clear. The White Kg1 is secured from all checks, except the pointless 23…Qxg2+. Candidates (23.): h4
23.h4 Qh5 24.g4
The Black Qh5 is trapped. Black can get at most Ph4 and Rd6 for his Qh5. |
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| Jan-12-10 | | JG27Pyth: Good lord. 1/4 credit. I found h4 but only because I thought I was winning the N! h4 deflects the queen then Rxd8+ Rxd8 Qb6 forking R and N. Just where exactly the Q was getting deflected to I didn't investigate since a quick look convinced me it didn't have "anywhere good" to go. Sheesh... sloppy. |
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Jan-12-10
| | agb2002: <RonB52734: ...
<agb2002> there seem to be some errors in your (A) line, specifically the two alternate moves for white at 26 don't seem right.
>
You're right, thank you. I probably mixed up two lines at the time of writing. The obvious move is 26.Qe3 (instead of the illegal 26.Qh4) as <CHESSTTCAMPS> has already pointed out. |
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| Jan-12-10 | | goodevans: Well I got there eventually, but it took far longer than most Tuesday's. The reason being that I started off looking at <23 h4> just as a means of deflecting the Q so I could fork the N and R with 23 h4 Qh5 24 Rxd8+ Rxd8+ 25 Qb6. This of course fails to 25 ... Qxh4, but at least it got me thinking about 23 h4. Then I started looking at <24 g4> just to give another kick to the Q so that 25 ... Qxh4 could no longer be played. It was only at that point that I realised that these two moves actually trapped the Q! |
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| Jan-12-10 | | Gilligan: Got this one; mostly due to remarks & instructions posted in previous GOTDs. Thanks to those sharing their knowledge & insights! |
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Jan-12-10
 | | Patriot: Material is even and the d6-rook is hanging. 23.Rxd8+ is not unreasonable, so it was my "king of the hill" at that point. I spent time looking at useless checks (Ne7+ and Nf6+) and also at the fork after 23.h4 Qd2 24.Rxd8+ Rxd8 25.Qb6, but 25...Qxe1# brought me back to reality. 23...Qh5 24.g4 ends matters quickly since the queen has no safe squares. Then I noticed the discovered check.
23.h4 Qd2 24.Ne7+/Nf6+ Rxd2 25.Rxd2. 24.Ne7+ is much better, however, since the knight is at least saved in the end. |
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| Jan-12-10 | | psmith: <MostlyAverageJoe>: How is White winning after say 23. Rxd8+ Rxd8 24. Qb6 Nd4 25. Qc7 Rf8? |
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| Jan-12-10 | | goodevans: Checking through the other posts it seems I was not the only one looking at the Qb6 fork, but most others (e.g. <JG27Pyth>) were not as lucky as me in stumbling on the correct solution in the process. |
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| Jan-12-10 | | JG27Pyth: goodevans<Checking through the other posts it seems I was not the only one looking at the Qb6 fork, but most others (e.g. <JG27Pyth>) were not as lucky as me in stumbling on the correct solution in the process.> No indeed... and your Qxh4 resource in the "win the N" line removes even the 1/4 point I'd awarded myself. Ugh. |
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| Jan-12-10 | | desiobu: Couple of ideas came to mind instantly, e.g. Rxd8 and Qb6. and also perhaps some kind of fork with Ne7+. in either case black's Qg5 holds everything together so white needs a way to harass it. Well what do you know after h4 it's actually lost. |
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Jan-12-10
 | | chrisowen: The diverse elements of Motyle's crew mean the row is not looking at a uniform mate, however a piece trap does suffice. After Rd8 the placement of the queen is comic, strip her of flight squares with h4. If Ivanovic played it in jest, ergo he's foolishly hit upon a rock. Qh5 frees him only slightly yet then hes goin' out swingin'. |
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| Jan-12-10 | | lzromeu: Not so easy. After ...Qd2: Ne7+ or Nf6+ and black lose the Queen |
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| Jan-12-10 | | Thecheckmater: 
click for larger view<OBIT and TheBish>
1... Qd2 2. Ne7+ (2. Qxd2 ...I would not play this, although it still wins... Nxd2 3. Rxd8+ Rxd8 4. Rd1 Nxf3+ ...Not Nc5... 5. gxf3 Rb8) and white is a pawn up for a knight, not a rook up. Sorry if this has been mentioned in the previous page, I just don't have the time to check, also a knight up for a pawn still wins, but I'm just saying you're not going to be a rook up, you will be a knight for a pawn up. |
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Jan-12-10
 | | patzer2: For an improvement for Black, perhaps 14...Nc4! is worthy of consideration. One possibility, with a lot of sliding back and forth with Fritz 10, is 14... Nc4! 15. Bxc4 Bxc4 16. Bb6 Qc8 17. Nxa5 d5 18. Nxc4 (18. exd5 Bb4  ) 8... Qxc4 19. Nxd5 Nxd5 20. exd5 Rxa4 21. Be3 Ra2 22. Qe2 Qh4+ 23. g3 Qb4+ 24.c3 Qb3 25. Bc1 Bc5 =, when Black's active pieces and attacking chances appear to fully compensate for the pawn deficit. In the game continuation, the losing move appears to be 21...Nxb3?? (instead 21...Ne6  avoids immediate loss), when 22. Nd5! gives White a near decisive grip on the position. After 22. Nd5!, Black's best is probably 22...Qh5 when White seems to have a winning advantage after the Fritz line 23. f4! (also strong is 23. Rf6! Kh8 24. Rf5 Qh6 25. Rxe5  ) 23...Nd4 24. Ne7+ Kh8 25. Rd5 Nc6 (not 25...f6?? 26. Qxd4! ) 26. Nxc6 bxc6 27. Rxe5 (2-cpu, +1.63 @ 18 depth). |
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Jan-12-10
 | | Jimfromprovidence: After 23 h4 Qd2, 24 Ne7+ or 24 Nf6+ are not equivalent moves. 24 Ne7+ is much better than because white get to keep the knight. If, after 24...Kf8 25 Rxd2 black plays 25...Nxd2, then 26 Nd5 saves the knight. 
click for larger view If, after 24...Kf8 25 Rxd2 black plays 25...Rxd2, then 26 Qe3 either saves the knight or trades for it. 
click for larger viewOn the other hand after 23 h4 Qd2 24 Nf6+, then after 24...gxf6 25 Rxd2 Nxd2, white is ahead but needlessly loses his knight. 
click for larger view |
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Jan-12-10
 | | Kasputin: Material is even.
I first looked for something on the kingside and then noticed that the black knight is a loose piece. Also moving the white queen to b6 attacks that knight as well as the d8 square. But trading rooks straight off doesn't help a b6 queen fork. And so: 23. h4
The black queen cannot stay on the h4 - d8 diagonal and guard the d8 rook. In fact the queen has very few places to go without being snapped up by a white piece or pawn. From a practical point-of-view, there is really only two moves possible for black: a) 23...Qd2 or
b) 23...Qh5
a) Moving 23...Qd2 allows 24. Ne7+ Kf8 25. Rxd2. Then black can play either 1) 25...Rxd2 or 2) 25...Nxd2 a1) 25...Rxd2 26. Qb6 and it looks like white comes out ahead a rook for a queen. But that is the beginning of troubles for black as white has lots of nasty threats begining with capturing the b7 pawn. That is especially nasty if black plays 26...Kxe7 because 27. Qxb7+ wins the a8 rook. Or black can move the b3 knight (which afterall is under attack) in which case white should just be able to play 27. Qxb7. Or black can attempt 26...Rxb2 or even 26...Rd3 to try and defend the knight. None of those looks very convincing. In fact taking the pawn with 26...Rxb2 it looks like white can take the b7 pawn and perhaps play Re3 afterward because the black knight is pinned to the b2 rook. Checking the white king with moves like ...Rb1+ won't help because the white king can make it to safety at g3. a2) 25...Nxd2 26. Nd5 and all looks good for white. Again white wins the queen for a rook. b) 23...Qh5
Of course now I've noticed a wrinkle. Trading rooks and then playing Qb6 allows black to play ...Qxh5 which attacks the e1 rook and defends the d8 rook. So I looked at moves such as Ne7+ or Nf6+ before and after a rook trade (with the idea of trying to block the h4-d8 diagonal with either a white knight or a black pawn - e.g., Nf6+ leading to gxf6). Things start getting murky. Anyway here are two ideas: One is simply to play 24. g4 in which case I don't think black has anything better than 24...Rxd6 and then white plays 25. gxh5. Again white comes out ahead a rook for a queen but white's has to live with doubled h-file pawns. Still white shouldn't have much to worry about and will win. The other idea is to proceed with 24. Rxd8+ Rxd8 then play 25. g4. Black has to play 25...Qh6 (because planting the queen on g6 allow a knight fork at e7). But then there is still the problem of black taking the h4 pawn if white now tries 26. Qb6. I don't think 26. Ne7+ is going to work for white (i.e., as a way of blocking the diagonal and successfully carrying out a Qb6 fork). So maybe 24. g4 is the best way to respond to 23...Qh5 Yikes! Lets see what happened. |
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