|
< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing> |
| Nov-04-15 | | TheFocus: Nice and easy. A little too easy for a Wednesday. |
|
| Nov-04-15 | | patzer2: Got mate-in-five with 22...Rxg2+ 23. Kh1 Rh2+ 24. Kg1 Rh1+ 25. Kxh1 Qxf3+ 26. Kg1 Qg2# for my easy Wednesday solution. A second best winning alternative is 23...Bxc3 24. Kh1 Bxa1  (-5.00 @ 21 depth, Deep Fritz 14). A blunder to avoid is 22... Qxf3? when White forces a level game with 23. Qxg7+ = as play might continue Bxg7 24. gxf3 Bxc3 25. Reb1 Bxa1 26. Rxa1 Bxf3 27. a5 Bd5 28. c4 Bc6 29. Kf2 Kf7 30. Be2 Rh8 31. axb6 axb6 32. Bg4 Be4 33. Ke3 Bf5 34. Ra6 Bxg4 35. hxg4 Rh3+ 36. Kf4 Rc3 37. Rxb6 Rxc4+ = (0.00 @ 26 depth). White's decisive mistake was 19. Qxg6+??, allowing 19... Rg7 20. Qxh6 Qd5 21. f3 Bxe5 (-6.41 @ 20 depth). Instead 19. Qg4 Bxe5 20. Rxe5 Nd5 21. Qxg6+ Kf8 22. Qxh6+ Rg7 23. Qxe6 Nf6 = (0.09 @ 21 depth) holds the balance. Earlier, Fritz indicates White could have maintained a small edge with 12. e5 dxe5 13. Qxd8 Rxd8 14. Nxe5  (+0.59 @ 22 depth). |
|
| Nov-04-15 | | Cheapo by the Dozen: Relying on the g-pawn pin doesn't work, since White can take the g7 rook with check. The next thought is 22 ... Rxg2+.
23 Kxg2 meets mate in two.
23 Kf1 meets mate in one.
So the challenge is 23 Kh1. Specifically, Black has to either keep White in constant check, or ride out a series of checks himself. The answer turns out to be:
22 ... Rxg2+
23 Kh1 Rh2+
24 Kg1 Rh1+
25 Kxh1 Qxf3+ and mate next.
(Or 25 Kf2 Qxf3#) |
|
| Nov-04-15 | | stacase: Usually Rooks aren't that nimble but this one sure did tear White a new one, Ouch! |
|
| Nov-04-15 | | Gypsy: Otto Borik is a chess master, but also a chess problem composer of acclaim. <Phony Benoni: Looks like time for a "Blown-Apart" attack with <22..Rxg2+>. Taking is immediate death (23.Kxg2 Qxf3+), and 23.Kf1 is no better, so <23.Kh1> will be played.23...Qxf3 with the discovered check threat is a thought, but White does have a little counter-attack going. ...> And a draw by a perpetual guaranteed. While the solution is easy to find, the combo is pretty. Because Black needs to sidestep a simple but aesthetic trap <22...Qxf3?? 23.Qxg7+...>, there is a degree of artistic symmetry in the proceedings. |
|
| Nov-04-15 | | HowDoesTheHorsieMove: After failing to solve Monday or Tuesday, Wednesday saves the week for me. |
|
| Nov-04-15 | | gofer: <22 ... Rxg2+>
23 Kf1 Qxf3#
23 Kxg2 Qxf3+
24 Kg1 Qg2#
<23 Kh1 ...>
Black should avoid Rh2+ as it loses control of the king's position and also stops the defence of the g file... <23 ... Qxf3>
Its all over. Black has set up the discovered check and white must find
a decent continuation.
The main point being, that even if the queen is traded off, black is still threatening mate, by moving Rg2 to g4, g5, g6 or g7. But also black doesn't have to do that immediately! Kf8 is a "safe square"
without white having any checks available to it as Qf3 protects f5, Be5
protects d6, f6, f4 and h8 and Rg2 protects h6!!!
So white is really up against it...
The "best" white can muster is probably...
<24 Qxe6+ Kf8>
<25 Qf5+ Qxf5>
<26 Bxf5 Rg4+>
<27 Be4/Rxe4 Bxe4+>
<28 Rxe4/Bxe4 Rxe4>
click for larger view~~~
Doh! That's twice in two weeks I have seen that rook trick and twice I have
missed it!!!! |
|
Nov-04-15
 | | al wazir: 22...Rxg2+ 23. Kh1 Qxf3 also wins. If 24. Rg1, then 24...Rxg1+, followed by 25...Qg2#. If 24. Qe3, then 24...Rg1+ or 24...Rh2+, followed by 25...Qg2#. Because of black's discovered check there is no perpetual: 24. Qh7+ Kf8 25. Qh6+ (25. Rf1 Rf2+) Rg7+. |
|
| Nov-04-15 | | diagonalley: aaargghhh! ... i missed the vital 24... R-R8+ .... drat and double drat :-( |
|
| Nov-04-15 | | morfishine: <22...Rxg2+> |
|
Nov-04-15
 | | Bubo bubo: The crossfire of the Q-B-battery and the rook meeting at g2 breaks down White's castle: 22...Rxg2+! White must not capture (23.Kxg2 Qxf3+ and 24...Qg2#) or move to f1 (23...Qxf3#), but 23.Kh1 doesn't help either: 23...Rh2+ 24.Kg1 Rh1+ 25.Kxh1 Qxf3+ and 26...Qg2# (or 25.Kf2/g2 Qxf3#) |
|
| Nov-04-15 | | mel gibson: Saw it in under 2 seconds. |
|
| Nov-04-15 | | CHESSTTCAMPS: It appears that white has invested resources in an attack that wasn't quite there or was misplayed. Black has a piece for two pawns, with most of the force directed towards the castled white king. A forcing win can be had with 22...Rxg2+ 23.Kh1 (otherwise 23... Qxf3+ forces mate) Rh2+ 24.Kg1 Rh1+! 25.Kxh1 (Kg2/f2 Qxf3#) Qxf3+ 26.Kg1/h2 Qg2# The less forcing 24... Qxf3 also wins, e.g. 25.Bh7+ Kf7 26.Rf1 Rf2+ 27.Kg1 Qg2# |
|
| Nov-04-15 | | dfcx: Black has four pieces aiming at white king side. But Qxf3 fails to Qxg7+, instead, 22...Rxg2+
A. 23.Kxg2 Qxf3+ 24.Kg1 Qg2#
B. 23.Kf1 Qxf3#
C. 23.Kh1 Rh2+ 24.Kg1 Rh1+ 25.Kxh1 (Kg2/Kf2 Qxf3#) Qxf3+ 26.Kg1 Qg2# |
|
| Nov-04-15 | | saturn2: I got the double rook sacrifice performed by the same rook. |
|
| Nov-04-15 | | patzer2: Correction: A second best winning alternative is 22...Bxc3 23. Kh1 Bxa1 (-5.00 @ 21 depth, Deep Fritz 14) when play might continue 24. Rxa1 Rf8 25. Rf1 Qe5 26. Qh4 Qf4 27. Qe1 e5 28. Rg1 c4 29. Be2 Kh7 30. Qc1 e4 31. Qxf4
Rxf4 32. fxe4 Bxe4 33. Bg4 Bxc2 (-10.49 @ 21 depth, Deep Fritz 14). |
|
| Nov-04-15 | | whiteshark: <22...Rxg2+!>, and that't it. (avoided the pitfalls of 22...Qxf3) |
|
| Nov-04-15 | | varishnakov: 22...RxP+ 23.K-h1 (23.KxR QxP+ with mate coming on g2) R-h2+ 24.K-g1 R-h1+! forces checkmate on g2 or f3. |
|
Nov-04-15
| | mjmorri: Once Black commits with Rxg2+, the key is to keep checking so the White Queen, Bishop and Rook cannot stir up any trouble. |
|
| Nov-04-15 | | starry2013: Looks like I got it
Rxg2+
2.Kh1 Rh2+
3.Kg1 Rh1+
4.Kxh1 Qxf3+
5.Kg1 Qg2#
But only when I came back to it in the evening.
In the morning I saw the pin on the g2 pawn and expected that was part of it. So I thought Q takes P, which doesn't work as the white queen checks by taking the rook. So then I thought Rxg2 just as it's forcing. Turns out the computer doesn't take with its king so obviously I was getting somewhere. But I couldn't figure out the next move. In the evening I got the next move and then it seemed it to flow through the next ones to checkmate. Didn't find it that easy but I got it in the end. |
|
| Nov-04-15 | | kevin86: Boy, black is determined to capture the pawn at f3 with check...and he does! Despite the cause- it is worth it...it is mate! |
|
| Nov-04-15 | | paavoh: Must keep giving the check, must keep giving the check... Rxg2+, Rh2+, Rh1+
and finally, Qxf3+ and it is curtains. |
|
| Nov-04-15 | | BOSTER: Only when you reach the pos. after 22...Rxg2+ 23.Kh1 Rh2+ 24.Kg1 you begin the search how to play next. What can black play if 24...Qxf3.
Only here is the beginning of the puzzle.
To see the <vital> Rh1+ to decoy the white king under Qf3+ without moving pieces is not easy. <whiteshark: 22...Rxg2+ and that't it> . I don't think so.
<starry2013: I got it when I came back to it in the evening> (after morning). |
|
Nov-04-15
 | | Penguincw: Damn, already Wednesday! Anyway, I saw 22...Rxg2+ and what would happen if white took on g2. But if white ignored the sac, I didn't calculate it, but probably could've. |
|
Nov-05-15
 | | FSR: 22...Rxg2+ 23.Kh1 Rh2+ 24.Kg1 Rh1+! toasts White. |
|
 |
|
< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing> |
Kibitzing
