|Oct-12-14|| ||greed and death: Wow. I sure didn't even come close to getting this one...|
|Oct-12-14|| ||Cheapo by the Dozen: I'm starting out stumped. My core winning plan is to get to Rxf7+. If Black plays ... Ke8, there's a nasty discovered check. If he plays ... Kf6, Rc1+ is nasty. And if he goes with ... Kd8, Qh7 will quickly lead to mate.|
The trick is how to make it happen. 26 Bg5 wins against any response more energetic than 26 ... Rf8, but I don't see how to make much progress after that defense. And the flashier 26 Bh6 seems to allow a draw in the most obvious line
26 Bh6 Rxg3+
27 Kh2 Bxh4
28 Rxd7+ Kd8
29 Qh7 Rc2+
30 Kh1 Rh3+
and perpetual check, while
26 Bh6 Rxg3+
27 Kh1 Rh3+
isn't any better.
|Oct-12-14|| ||patzer2: Got 25. Bh6! Rxg3+ 26. Kh2 for my Sunday solution, but didn't see the follow-up 27...Rcg8 28. Qh7! to . |
After 28. Qh7! Qd8 29. Rxf7 Rh8 30. Rxe7+ Qxe7 31. Qxe7+ Kxe7 32. Kxg3 Rxh6 33. Bg4 to , Fritz 12 shows White with a two pawn advantage (+1.98 @ 21/37 depth on my dual core Intel 2.1 GHZ processor).
|Oct-12-14|| ||plumbst: Insane. Material is even.
The position is relatively static so there seems to be only one possibility at all..
This is possible due to Black's King in the center and inactive light-squared bishop.
(26...Rgg8 loses a tempo; 26...Rcg8 just drops the exchange)
(27...Rcg8 28.Bg5 Rc3 29.Bxe7; 27...Bxh4 28.Rxf7+ Rd8 [28...Kc6 29.Rc1+] 29.Qh7)
30.Kf2 Qd8 (30...Qa5 31.Qh7 Qa2+ 32.Rd2)
32.Bg5 Re8 (32...Rf8 is answered in the same way)
Black has no good answer to Bg4 followed by Qg6. 33...Rxf7 34.Qxf7 Qf8 35.Bxe7 Qxf7 36.Bxf7 Kxe7 37.Rc7+ wins the bishop.
|Oct-12-14|| ||plumbst: Ah, after 28.Bg5 I missed R3xg5 29.hxg5 Rh8! For some reason I thought Black had a perpetual check on the g-file...|
Does 28.Rxf7 win also?
|Oct-12-14|| ||al wazir: I got white's first two moves but thought black would play 27...Rgc3.|
So after 28. Qh7 Qd8 in the game line, where's the win? If 29. Rxf7 or Qxf7, then 29...Rg2+ 30. Kh1 Rg3, threatening mate. If 29. Bxf7, then 29...Rh8 30. Qc2 Rxh6 31. Kxg3 Bxh4+, followed by 32. Qg5.
|Oct-12-14|| ||diagonalley: 26.B-R6 seemed the only try... there looked to be enough defence on the back rank to keep black's rooks at bay while his K-side was incised... IMO yesterday's puzzle was harder|
|Oct-12-14|| ||M.Hassan: "Insane"
White to play 26.?
Material is identical.
<if...Ke8 29.Rxb7+ Rxh5 30.Rxb6 and Black Queen is eliminated>
Now Black can delay the mate but cannot prevent it:
|Oct-12-14|| ||morfishine: Whiat can pretty much proceed as he pleases since Black has limited mobility|
I had <26.Bh6> continuing 26...Rxg3+ 27.Kh2 Rcc3 but didn't really see any
|Oct-12-14|| ||gofer: Black currently has two positional weaknesses Qb6 and Bb7. Both are static. White on the other hand has almost complete mobility. The most raking attack is probably to trade off on f7 and then bring the queen to h7 or g6 and the remaining rook to give check on f1. So initially I started looking at <26 Bg5 ...>, but then I realised that just like yesterday an immediate threat is far more difficult to throw off!|
<26 Bh6! ...>
Immediately white threatens to play Rxf7, black must accept the challenge!
<26 ... Rxg3+>
<27 Kh3 Rcg8>
Now this move is completely natural and also the only way to protect
Rg3, but white has another trick up his sleeve!
<28 Bg5! ...>
Now what? Black is going to go an exchange down because Rc3 Bxe2 Kxe2 Rxf7+ Kd8 Qh7 is a nightmare for black. He has two three choices;
28 ... R8xg5
29 hxg5 Rxg5
30 Qh7 Rf5
31 Rxf5 exf5
28 ... R3xg5
29 hxg5 Rxg5
30 Qh7 Rf5
31 Rxf5 exf5
<28 ... Bxg5>
<29 Kxg3! ...>
click for larger view
Now that's what I call having huge bollocks!
<29 ... Bd2>
<30 Kh3 Qxd4>
<31 Rxf7+ Kd8>
<32 Qh7! Qe3+>
<33 Bf3! >
Now <28 Qh7!> was a very simple finish and far better than my drivel!
|Oct-12-14|| ||mistreaver: Sunday. White to play. 26.? Insane.
Material is even. Black's f7 pawn is weak and the combination probably involves some sacrifice either on f7 or maybe even on e6.
However at first sight it seems that black has everything covered.
I think the key is to trade the g3 for f7
26 Bh6 Rxg3+ Only this move makes sense to me.
and now say
27 ... Rcg8
28 Bxf7 Rg2+
29 Kh1 seems good for white or
27 ... Bxh4
I don't think i can see the insane move here, it is probably some sacrifice on e6. Time to see how the game went.
28 Qh7 is indeed winning, but so is 28 Rxf7.
My move 28 Bxf7 fails due to 28... R8g4
|Oct-12-14|| ||Longbrow: <al wazir> I believe you are correct on "where's the win?" with 27...Rgc3. I also played many variations of 27...Rc8-c3 in the same line and found Black with the advantage, often keeping the bishop pair.|
|Oct-12-14|| ||agb2002: The material is identical.
I have considered
A) 26.Bxf7 Rxf7 27.Qg6 Rcf8;
B) 26.Bh6 Rxg3+ 27.Kh2 Rcc3;
C) 26.Rf3 Rh8;
D) 26.Kh2 (threatening 27.Bh6) 26... Rh8
and nothing seems to work.
The only line with some chances seems to be the second: 26.Bh6 Rxg3+ 27.Kh2 Rcc3 28.Rxf7, threatening 29.Rxe7+ Kxe7 30.Qh7+. For example, 28... Bc6 (28... Qd8 29.Bf8) 29.Rxe7+ Kxe7 30.Qh7+ Kd8 31.Bg5+ (31.Rf1 Rh3+ 32.Kg2 Rcg3+ 33.Kf2 Qxd4+ looks winning for Black) 31... Rxg5 (31... Kc8 32.Qh8+ wins) 32.hxg5 with the idea g6-g7, etc.
I cannot do more today.
|Oct-12-14|| ||BOSTER: <C by D 30...Rc2 + 31.Kh1 ... and perpetual check>.|
|Oct-12-14|| ||BOSTER: Correct < 29...Rc2+ 30.Kh1>.
|Oct-12-14|| ||tazztazz: I dont understand how somebody with such talent could miss something so easy.|
Black can draw by repetittion by playing 28...Rg2* then when white move to h1 29...Rg3 threatening Rh3 mate. and so white goes Kh2 so a draw with repetition. Any attempt by white to stop this loses material.
|Oct-12-14|| ||colorvis: He missed the draw!|
|Oct-12-14|| ||BxChess: tazztazz: 'Black can draw by repetittion by playing 28...Rg2* then when white move to h1 29...Rg3 threatening Rh3 mate.' |
If 30. Rf2, (not 30. Rd2 Qxd4) doesn't white get to continue the attack?
|Oct-12-14|| ||jakc: tazztazz:
"Black can draw by repetition by playing 28...Rg2* then when white move to h1 29...Rg3 threatening Rh3 mate. and so white goes Kh2 so a draw with repetition. Any attempt by white to stop this loses material."
After ...Rg3, doesn't Bg5 stop the check?
If ...BxB, then Qxp+, followed by the Queen taking the Rook on g8. The bishop is pinned and will be lost next.
Taking the bishop with the Rook on g8 leads to pxR. Moving the Rook to h3, the original plan, is met by King to g2