< Earlier Kibitzing · PAGE 3 OF 3 ·
|Mar-01-18|| ||agb2002: White has the bishop pair for a bishop and a knight.|
Black is about to play f6, reinforcing g7.
Only the black king protects the square g7. Therefore, 36.Rxg7+ Kxg7 (36... Kh8 37.Qf6, followed by Qxh6, wins) 37.Rg4+ Ng6 (37... Kh8 38.Qf6+ Kh7 39.Qg7#) 38.Bxg6:
A) 38... fxg6 39.Qxg6+ Kf(h)8 40.Qg8#.
B) 38... Kf8 39.Bh7
B.1) 39... Rd7 40.Qf6 followed by Rg8#.
B.2) 39... Re8 40.Qf6 as above.
B.3) 39... f6 40.Rg8+ Kf7 41.Qg6#.
C) 38... Kh8 39.Qf6+ Kg8 40.Bxf7+ Kf8(h7) 41.Qg7#.
D) 38... Qd7 39.Bxf7+ Kf(h)8 40.Rg8#.
E) 38... f6 39.Bh7+ Kf8 (39... Kf7 40.Qg6+ Kf8 41.Qg8#; 39... Kh8 40.Rg8#) 40.Rg8+ Kf7 41.Qg6#.
F) 38... Rd7 39.Bh7+ Kf8 (39... Kh8 40.Rg8#) 40.Qf6 as in B.1.
G) 38... Re8 39.Bxf7+ Kf8 (39... Kh8 40.Qf6+ Kh7 41.Qg7#) 40.Rg8+ Ke7 41.Rxe8#.
|Mar-01-18|| ||agb2002: I stopped calculation too soon in my line B.1, since after 40... Ke8 41.Rg8+ Black has 41... Bf8. However, 42.Bb4 looks crushing (42... Rxf6 43.Rxf8#).|
<An Englishman> Monty Python and the Holy Grail. I had a good laugh.
|Mar-01-18|| ||wtpy: I went with 39 Qf6 and while that may not be quite as good as text after 39 ..Ke8 40 Bf5 black is done.|
|Mar-01-18|| ||AlicesKnight: Saw a lot but missed the pretty point 41.Bg6.|
|Mar-01-18|| ||5hrsolver: Good analysis <agb2002>|
I too went with 40. Qf6
<engineerX> gives a good continuation to 40.Qf6 back in 2008
<engineerX: <UdayanOwen: Sure 40.Qf6 wins but unless I've missed something, it is nowhere near as good as the game continuation.> You are missing 40.Qf6 Ke8 41.Rg8+ Bf8 42.Bb4 with a forced mate, e.g. 42...Rd6 43.Qxe5+ Re7 44.Rxf8+ Kd7 45.Bf5+ or 42...Qd6 43.Qxe5+ Kd8 44.Rxf8+>
<larsen959> Gives the finish to the game line back in 2009
<larsen959: nobody wrote: 41..Bxa3(forced) 42.d6+!! Kxd6(forced) 43.Bxe5+ and white wins the Queen!>
Makes me wonder if black saw this line before he resigned.
|Mar-01-18|| ||saturn2: After the distruction Rxg7 black is in trouble.|
<36... Kh8 37.Qf6, followed by Qxh6, wins>
I would prefer 37 Rg4 because after 37..Bc5 the rook on a6 attacks the queen and defends h6.
|Mar-01-18|| ||gofer: I imagine we all got the first couple of moves, but then I went wrong (or at least not
the accurate line played)...
<36 Rxg7 ...>
The sacrifice cannot be ignored.
36 ... Kh8?
37 Qf6! Bc5
38 Reg4! Bxf2+
39 Kh1 Ng6 (Rxf6 40 Rg8+ Kh7 41 R4g7#)
40 R7xg6+ Rxf6
41 Rg8+ Kh7
<36 ... Kxg7>
<37 Rg4+ Ng6>
<38 Bxg6 Kf8>
<39 Bh7 Rd7!>
<40 Qf6! ...>
Okay, not anywhere as good as <40 Rg8+ Ke7 41 Bg6 mating>, but still pretty strong!
<40 ... Ke8>
<41 Rg8+ Bf8>
<42 Bb4! ...>
Now the mating threats still all exist because Rd7 is blockin any escape for the
click for larger view
42 ... Re7
43 Rxf8+! Kd7 (Kxf8 Qh8#)
42 ... Rdd6 mate in 10 starting with Qxe5+
42 ... Qd6 mate in 8 starting with Qxe5+
42 ... Rad6 mate in 7 starting with Qxe5+
I see I am covering old ground, but not alone in mssing the best continuation...
|Mar-01-18|| ||cocker: Ni Hua to a grasshopper?|
|Mar-01-18|| ||Whitehat1963: Too much going on for me to see clearly to the end of this one.|
|Mar-01-18|| ||malt: 36.R:g7+ K:g7
(36...Kh8 37.R4g4 Ng6 37.R7:g6 fg6 38.Qf8+ Kh7 39.B:g6# )
37.Rg4+ Ng6 38.B:g6 Kf8
(38...fg6 39.Q:g6+ Kf8 40.Qg8# )
39.Qf6 Ke8 40.Qh8+ Kd7 41.Bf5+ Re6 42.de6+ fe6 43.Be4 blocking c6 threatening Rg7+
|Mar-01-18|| ||leRevenant: Surprisingly, I got this one.|
|Mar-01-18|| ||mel gibson: I thought it was 36 Q-f6 threatening mate.
Stockfish 8 says mate in 22:
(36. Rxg7+ (♖g3xg7+ ♔g8xg7
♖e4-g4+ ♘f8-g6 ♗h5xg6 ♕c7-c4 ♖g4xc4 f7xg6 ♕f5-c8 ♔g7-h7 ♕c8-d8 g6-g5 ♖c4-c8
♖e7-g7 ♕d8-h8+ ♔h7-g6 ♕h8-e8+ ♖g7-f7 ♕e8-g8+ ♖f7-g7 ♕g8-e6+ ♔g6-h7 ♕e6-f5+
♖g7-g6 ♗c3xe5 ♗d6xe5 ♕f5xe5 ♖g6-g7 ♕e5-f5+ ♖a6-g6 d5-d6 g5-g4 d6-d7 ♖g7-e7
d7-d8♕ ♖e7-e1+ ♔g1-h2 g4-g3+ f2xg3 ♖e1-h1+ ♔h2xh1 ♔h7-g7 ♕d8-d7+) +M22/34
|Mar-01-18|| ||1.e4effort: Beautiful onslaught! Despite black making very logical responses after Rxg7+ and the ensuing moves, he's left with no options - if he takes the bish it's mate, if he doesn't take the bish, its mate.|
|Mar-01-18|| ||patzer2: Forgot I saw this 10 years ago, and went for 36. Be2 (second best move according to the computer) for my attempt at today's Thursday puzzle solution.|
According to Stockfish 8, Black's best after 36. Be2 is 36...Rb6 when the simple 37. Rxa4 +- (+2.40 @ 34 ply) or the more difficult 37. Reg4 Ng6 38. Rc4 Qd7 39. Rc8 +- (+2.90 @ 35 ply) is winning.
Of course much stronger is the game continuation with White's crushing demolition combination 36. Rxg7+! Kxg7 37. Rg4+ Ng6 38. Bxg6 +- (+18.92 @ 30 ply, Stockfish 8).
P.S.: Black's 35...Ra6?, allowing 36. Rxg7! +- (+18.92 @ 30 ply, Stockfish 8), makes it too easy for White. Instead, 35...Nh7 36. Reg4 f6 37. Bg6 Nf8 38. Rh4 e4 ± (+1.22 @ 31 ply, Stockfish 8) puts up enough resistance to leave the outcome in doubt.
|Mar-01-18|| ||saturn2: <patzer2 Black's best after 36. Be2 is 36...Rb6 when the simple 37. Rxa4 +- >|
I would be tempted to pin by 37 Ba5
|Mar-01-18|| ||ChessHigherCat: I saw Rxg7 Kxg7 Rg5+ Ng3 and didn't even think of Bxg3, which is pretty pathetic but I was tired and doing it in my head. In any case, it has me googling for affordable brain transplants so I should be making remarkable progress soon!|
|Mar-01-18|| ||Cheapo by the Dozen: I just calculated to the point that White had a pawn for the exchange and would obviously win at least another pawn while still attacking, and declared success.|
The key for me was realizing that Black could defend if he could unblock his second rank, and so an extremely forcing line was called for.
|Mar-01-18|| ||schachfuchs: <...Black's best after 36. Be2 is 36...Rb6 when the simple 37. Rxa4 +- (+2.40 @ 34 ply) or the more difficult 37. Reg4 Ng6 38. Rc4 Qd7 39. Rc8 +- (+2.90 @ 35 ply) is winning.>|
Isn't 37.Rxg7+ after 36.Be2 Rb6 not good anymore?
|Mar-01-18|| ||Junbalansag: Christowen, i am curious what language arare u using. Its too bad that it is a long comment and ur saying Latin, completely outlandish.|
|Mar-01-18|| ||drollere: i had
36. Rxg7+ Kh8
37. Reg4 Ng6
38. Bxg6 Kxg7
39. Bxf7+ Kf8
but i wasn't playing black.
|Mar-01-18|| ||Richard Taylor: Velly clever!|
|Mar-01-18|| ||King.Arthur.Brazil: I saw 36.Qf6 but as its said that "medium", I chose the move 36.Rxg7+ and follow the same sequence of the game, but instead of 40.Tg8+ I would play Qf6 and mate next.|
|Mar-01-18|| ||patzer2: <schachfuchs> Stockfish 8 evaluates 36. Be2 Rb6 37. Rxg7+? Kxg7 ∓ to -+ (-2.08 @ 36 ply) as throwing away the win and giving it to Black.|
The problem is with the Bishop no longer on h5 (after moving to e2), the Rook sack simply doesn't work.
|Mar-02-18|| ||schachfuchs: Oh, crazy me! I mixed up Be2 and Bd2! :-(|
|Mar-02-18|| ||agb2002: <5hrsolver: Good analysis <agb2002>>
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