|
< Earlier Kibitzing · PAGE 1 OF 2 ·
Later Kibitzing> |
| May-21-14 | | ThumbTack: 18.Rxd4 is fairly obvious, but I didn't see anything great after 18..Bxd4. Obviously 18..Qxd4 loses immediately. After 18..Bxd4 19.Rd1 Bxf2+ 20.Kxf2 e3+ 21.Kxe3 Qe8+ 22.Qxe8+ Rxe8+, Black has a lousy position in which he will almost surely lose, but a straight count of pieces and pawn doesn't show that big a difference. If White was a lousy endgame player, who knows? Maybe Black was a lousy endgame player and that's why he resigned. |
|
| May-21-14 | | mdz: 18.Rxd4 Bxd4 19.Rd1 Qg7 20.Rxd4 Rxd4 21.Qe8+ (19...Bxf2+ 20.Kxf2 e3+ 21.Ke1) |
|
| May-21-14 | | dfcx: Medium/Easy, white to move 18?
White is attacking the f7 and h7 squares, black queen is overloaded. So
18.Rxd4 Bxd4 (18...Qxd4 19.Qf7+ and 20.Qxh7#)
19.Rd1 and black has no good defense against 20.Rxd4 A) 19...Bxf2+? 20.Kxf2 
B) 19...Qe8?? 20.Qxh7#
C) 19...Qg7 20.Rxd4
C1) 20...Qxd4?? 21.Qf7+ Kh8 21.Qxh7#
C2) 20...Rxd4?? 21.Qe8+ Qf8 21.Qxf8#
D) 19...Rf8 20.Rxd4 |
|
| May-21-14 | | dfcx: <ThumbTack: 18.Rxd4 is fairly obvious, but I didn't see anything great after 18..Bxd4. Obviously 18..Qxd4 loses immediately. After 18..Bxd4 19.Rd1 Bxf2+ 20.Kxf2 e3+>
White plays 21.Ke1 and black loses d8 rook.
21...Qd8? 22.Rxd8 |
|
| May-21-14 | | mdz: another cute line (after 18.Rxd4 Bxd4 19.Rd1): 19...e3 20.Rxd4 e2 21.Qxe2 Qxd4 22.Qe7 Qd7 23.Bd5+ Kh8 24.Bb2+ |
|
| May-21-14 | | MountainMatt: Ah yes, Wednesday; first move is obvious, but the rest is a bit over my head. Same ol' same ol'. |
|
| May-21-14 | | TheBish: E Magerramov vs V Malaniuk, 1989 White to play (18.?) "Medium/Easy", material is even. White can win by deflecting Black's queen away from protecting f7 and h7, as the Qh5 and Ng5 are poised to strike there. Also, Black's back rank is rather weak, being undeveloped on the queenside. 18. Rxd4! Bxd4 19. Rd1
Now the threat is simply 20. Rxd4, and 19...c5 20. Bxc5 is no help, nor is 19...Bxf2+ 20. Kxf2, so the next move is forced. 19...Qg7 20. Rxd4! Bd7
Not 20...Qxd4 21. Qf7+ and mate on h7, or 20...Rxd4 21. Qe8+ Qf8 22. Qxf8#. 21. Bb2 and the threat of 22. Ne6 along with an attack on the dark squares should bring White victory. |
|
| May-21-14 | | Velocy: good combination |
|
| May-21-14 | | Madman99X: Somebody tell me if this is actually forcing, but I got 18. Rxd4 Bxd4 19. Rd1 with Qxh7# or Rxd7 to follow. |
|
| May-21-14 | | Madman99X: And surely 16... Bxa1 is better than the text? |
|
| May-21-14 | | Caissas Clown: In a club game,I would have played up to 19..Bxf2 check ...just in case.
It's no good of course,but it offers a slightly better chance than the immediate resignation. |
|
| May-21-14 | | dakgootje: <18.Rxd4 Bxd4 19.Rd1 Qg7 20.Rxd4 Rxd4 21.Qe8+ (19...Bxf2+ 20.Kxf2 e3+ 21.Ke1)> After 21. Ke1 black can just double-take on d1 with an unclear final position. |
|
| May-21-14 | | morfishine: A "Rucksack" sends "Black-packing"
18.Rxd4 Bxd4 19.Rd1 Qg7 20.Rxd4 Rxd4 21.Qe8+ Qf8 22.Qxf8# As noted by others, better for Black is to accept the exchange for a piece with 18.Rxd4 Bxd4 19.Rd1 Bxf2+ 20.Kxf2 e3+ 21.Ke1 Qxd1+ 22.Qxd1 Rxd1+ 23.Kxd1 c6 24.Ke2 Bd7 25.Kxe3 Re8+ ***** |
|
| May-21-14 | | Nick46: first move is intuitive, but the rest is a bit over my head |
|
| May-21-14 | | dakgootje: <A "Rucksack" sends "Black-packing" > Hehehehe oh that's bad :P
<As noted by others, better for Black is to accept the exchange for a piece with 18.Rxd4 Bxd4 19.Rd1 Bxf2+ 20.Kxf2 e3+ 21.Ke1 Qxd1+ 22.Qxd1 Rxd1+ 23.Kxd1 c6 24.Ke2 Bd7 25.Kxe3 Re8+> Yeah, the whole c6 and Bd7 seems a bit slow for black - but I don't think there's a obvious way to exploit it. Moreover if necessary black might have some ideas for activity via 23. ..f4 24. gxf4 Bg4+ 25. Ke1 Rd8 which both treatens mate at d1, and the rook coming in at d2 and being a real pain. Thought this didn't work yet [perhaps simply 26. Bf3], so there might not be enough compensation for the pawn. But it shows that <even if> black isn't nearly equal in the variation you mentioned, white should still be careful. Perhaps white can play for an advantage with 21. Kxe3 - but that looks very scary. |
|
| May-21-14 | | therevolver17: 18.Rxd4 Bxd4 (18..Qxd4 19.Qh7#) 19.Rd1 and black is on kind of zugzwang. 19..Bxf2 20.Kxf2 e3+ 21.Kxe3 Re8+ Kf4 but white is still winning. |
|
| May-21-14 | | dakgootje: <Moreover if necessary black might have some ideas for activity via 23. ..f4 24. gxf4 Bg4+ 25. Ke1 Rd8 which both treatens mate at d1, and the rook coming in at d2 and being a real pain. Thought this didn't work yet [perhaps simply 26. Bf3], so there might not be enough compensation for the pawn. But it shows that <even if> black isn't nearly equal in the variation you mentioned, white should still be careful.> Heh, just put it in a pgn viewer to check my variation. There is 26. Bd5 and white is more than okay. Ah well :P < therevolver17: 18.Rxd4 Bxd4 (18..Qxd4 19.Qh7#) 19.Rd1 and black is on kind of zugzwang. 19..Bxf2 20.Kxf2 e3+ 21.Kxe3 Re8+ Kf4 but white is still winning.> Oh, wow, yes indeed. After 22. Kf4, the king is practically in the middle of the board in the middle game. And totally safe. Who knew. So that's probably the easiest win. |
|
| May-21-14 | | diagonalley: ...aarrrgggh! ... i didn't persist with the exchange sacrifices :-( .... diagonalley: 0 points |
|
| May-21-14 | | patzer2: <ThumbTack: 18.Rxd4 is fairly obvious, but I didn't see anything great after 18..Bxd4.> Also found it obvious, but only because it's a puzzle. However, it's harder than our usual Tuesday POTD because it combines a number of tactical themes: 1. Deflection and Mating Tactic: The idea benind the combination is if we can deflect the Queen from the defense of the critical h7 square, we can mate-in-one with Qxh7# 2. Decoy (forcing a piece to a square): 18. Rxd4 forces either 18...Qxd4?? or 18. Bxd4. 3. Pin and Deflection: 18. Rxd4 Bxd4 19. Rd1 attacks the pinned Bishop, as well as threatening Rxd4 to deflect the Queen from the defense of the mate threat. 4. Overloading on the Pinned Piece: After 18. Rxd4 Bxd4 19. Rd1 c5 20. Bxc5 , the pinned Bishop is forced to surrender. 5. Overworked Piece: The forcing sequence 18. Rxd4 Bxd4 19. Rd1 c5 20. Bxc5 Bxf2+ 21. Kxf2 (diagram below) 
click for larger viewproves the White Queen decisively overworked with the dual threat 21...Qxd1 22. Qxh7# or 21...Qc7 22. Rxd8+ Qxd8 23. Qxh7#. |
|
| May-21-14 | | agb2002: The material is identical.
The first idea that comes to mind is 18.Rxd4 Bxd4 (18... Qxd4 19.Qxh7+ Kf8 20.Qf7#) 19.Nxh7 Qxh7 20.Qg5+ Qg7 21.Qxd8+ winning a pawn at least but Black can play 19... Qg7 and have the better position. -----
Another option is to pin the bishop with 18.Rxd4 Bxd4 19.Rd1, threatening 20.Rxd4: A) 19... Bxf2+ 20.Kxf2 e3+ 21.Kxe3
A.1) 21... Re8+ 22.Kf2 (or even Kf4) and Black looks lost. A.2) 21... Qe8+ 22.Qxe8 Rxe8+ 23.Kf2 with the better ending [B+N vs R]. B) 19... c5 20.Bxc5 Bxc5 21.Rxd7 Rxd7 22.Ne6 with the double threat 23.Qe8# and 23.Nxc5 seems to win. C) 19... Qg7 20.Rxd4 looks winning. For example, 20... Bd7 (20... Rxd4 21.Qe8+ Qf8 22.Qxf8#; 20... Qxd4 21.Qf7+ Kh8 22.Qxh7#) 21.Rxe4 fxe4 22.Bxe4 Be8 (to prevent 25.Bf7+) 23.Bxh7+ Kh8 24.Bg6+ Kg8 25.Bxe8 Rxe8 (25... Rd1+ 26.Kg2 with the threat Bf7+) 26.Bb2 wins the queen or delivers mate. -----
19.Rd1 looks much stronger than 19.Nxh7. |
|
May-21-14
 | | gawain: This was not as dramatic as the easy/medium puzzle solutions usually are. I figured that 18 Rxd4 had to be the puzzle move because of the nifty forcedness of the bishop recapture (not 18... Qxd4 on pain of rapid checkmate. And I guessed that 19 Rd1 was the winning follow-up but I was lazy and did not work out the details. |
|
| May-21-14 | | patzer2: A sixth tactical theme involved is the "double attack" after 18. Rxd4 Bxd4 19. Rd1 c5 20. Bxc5 Bxc5 21. Rxd7 Rxd7 (diagram below).
click for larger viewHere 22. Ne6 wins with the double attack (i.e. dual threat) 23. Qe8# or 23. Nxc5 . |
|
| May-21-14 | | Castleinthesky: I'll give myself three quarters of a point. I got it but wasn't sure if the exchange was winning. I was black, I would probably resign after being inflicted with more pain. |
|
| May-21-14 | | Nick46: <morfishine: A "Rucksack" sends "Black-packing" 18.Rxd4 Bxd4 19.Rd1 Qg7 20.Rxd4 Rxd4 21.Qe8+ Qf8 22.Qxf8# As noted by others, better for Black is to accept the exchange for a piece with 18.Rxd4 Bxd4 19.Rd1 Bxf2+ 20.Kxf2 e3+ 21.Ke1 Qxd1+ 22.Qxd1 Rxd1+ 23.Kxd1 c6 24.Ke2 Bd7 25.Kxe3 Re8+ *****> I've followed this thru to here but it's not an evident cakewalk yet ... There's still some life left in Vlad |
|
| May-21-14 | | kevin86: I tried the sac, but didn't go far enough with it.
Tough puzzles this week...and it's only Wednesday...ouch! |
|
 |
|
< Earlier Kibitzing · PAGE 1 OF 2 ·
Later Kibitzing> |
Kibitzing
