< Earlier Kibitzing · PAGE 3 OF 3 ·
|Jan-31-19|| ||Walter Glattke: 94.Re4 Bg3 95.Ra4+ Kb8 96.Rg4 Bc7+ / 95.Re8+ Bb8 96.Re7 Bg3 97.Ra7+ Kb8 98.Rg7 mate in xxx moves|
|Jan-31-19|| ||ajk68: I was confused by the 2.5 star rating. The solution seemed straightforward and I couldn't see anything I was missing.|
My reasoning was that we need the king to obstruct the bishop's access to b7 (to avoid stalemate). Once I had that it was obvious to then threaten mate thereby winning the bishop.
|Jan-31-19|| ||Honza Cervenka: <Walter Glattke: 94.Re4 Bg3 95.Ra4+ Kb8 96.Rg4 Bc7+ / 95.Re8+ Bb8 96.Re7 Bg3 97.Ra7+ Kb8 98.Rg7 mate in xxx moves>|
94.Re4(?) Bg3 95.Re8+ Bb8 96.Re7 Bg3 97.Ra7+ Kb8 98.Rg7 Bf2+ and there is no mate.
|Jan-31-19|| ||AlicesKnight: A classic draw ruined by 93... Bd6. Found the 2-move reply; the B cannot check the K away because it is too close.|
|Jan-31-19|| ||schachfuchs: This is far from being 'medium', but I won't complain ;-)|
|Jan-31-19|| ||malt: Got 94.Ra7+ Kb8 95.Rd7 Be7 96.R:e7|
|Jan-31-19|| ||TheaN: Thursday 31 January 2019
R vs B endgame? Interesting choice here. In many cases is this clash a draw but there are some practical chances for the rook. Exactly here does White have that:
<94.Ra7+ Kb8 95.Rd7 #5> Black cannot both save his King and Bishop.
|Jan-31-19|| ||zb2cr: A little easier than it seems at first look.
94. Ra7+, Kb8; 95. Rd7! Black has only five possible ways of dealing with the mate threat, and they all lose, going into the textbook K+R vs. K win. Other Bishop moves transparently don't deal with the threat of Rd8#.
A. 95. ... Kc8; 96. Rxd6. Book win.
B. 95. ... Ka8 (hoping for carelessness on White's part; 96. Rxd6. Book win, again.
C. 95. ... Bc7+; 96. Rxc7, Ka8; 97. Rc8#.
D. 95. ... Bc5+; 96. Kxc5, Kc8; 97. Kc6, Kb8; 98. Kb6, Kc8; 99. Rd1, Kb8; 100. Rd8#.
E. 95. ... Be7; 96. Rxe7, Kc8; 97. Kc6, Kb8; 98. Re8+, Ka7; 99. Rc8, Ka6; 100. Ra8#.
|Jan-31-19|| ||TheaN: <Feb-04-04: Sneaky: MiniSkirt, the idea is the same no matter where the bishop moves. 93...♗f4 94.♖a7+ ♔b8 95.♖f7, threatening both ♖f8# and ♖xf4.|
Feb-04-04: weary willy: er .... Be3+
Feb-04-04 chessgames.com: Our sincere apologies for presenting a puzzle with no solution.
Feb-04-04 Sneaky: Hmmm... I thought I knew it all and I knew nothing! I learned something here too.>
We all know what happened here ^^.
|Jan-31-19|| ||vonKrolock: Instructive, as it can appear in OTB situations.|
And elegant too, as it's a unique manoeuvre.
Same idea in this Pacman style grotesque
click for larger view
|Jan-31-19|| ||sfm: "Same idea in this Pacman style grotesque" Funny!|
|Jan-31-19|| ||dTal: Yay, I got this easily! My moment of satisfaction before I'm back down to earth tomorrow.|
|Jan-31-19|| ||mjmorri: This ending is surprisingly difficult to hold especially for an amateur. I have had mixed results from the weaker side. Never played the stronger side.|
|Jan-31-19|| ||whiteshark: <E06 Catalan> by transposition.|
|Jan-31-19|| ||dorsnikov: What was wrong with 94.R-e8? The only thing black can do is 94... B-b8. Followed by 95. K-a6. The only move for black is to move the pinned Bishop. Am I missing something? Is moving a piece pinned against the King legal?|
|Jan-31-19|| ||Breunor: Dorsnikov,
In your line after Ka6 it is a draw by stalemate - black has no legal move. You cannot move the pinned bishop.
|Jan-31-19|| ||Diana Fernanda: Bello friends cgames Solution problem Is rook a7 folowing td7 winning bishop or mate.|
|Jan-31-19|| ||SpamIAm: <mjmorri>, it is difficult if one hasn't studied endgames (which many players do indeed avoid doing). As Reuben Fine wrote in his classic "Basic Chess Endings", in such a situation (RxB) the weaker side "should run to the corner opposite the color of his bishop as fast as his legs can carry him". Of course, as seen here, there are some tactical exceptions. But if black hadn't blundered earlier the best white could've gotten was stalemate.|
|Jan-31-19|| ||SpamIAm: "Hungarian Opening: Indian Defense"? This is a Catalan Opening, albeit by transposition.|
|Jan-31-19|| ||Walter Glattke: I am surprised of this check in f2, if the king was in the unsure corner, then mate can be forced: wKg6 bKh8 wRd7 Bb4:
1.Rb7 Bf8 2.Rb8 Kg8 3.Ra8 Kh8 4.Rxf8#
I also am delighted to see a mate in the sure Corner, normally all These matches are draw.
|Jan-31-19|| ||DrGridlock: 93 ... Bd6 was a very bad idea. I was going to observe that black's bishop has one job - to interpose itself on b8 to prevent a mate by white's rook and king. It actually had two jobs - to do the first job and to NOT get attacked by white's rook while black's king is on b8. It could have moved all along the b8 - h2 diagonal but unfortunately stopped at d6 to gaze at the scenery.|
|Jan-31-19|| ||Olsonist: I love Mondays.|
|Feb-01-19|| ||Willber G: <DrGridlock: 93 ... Bd6 was a very bad idea. I was going to observe that black's bishop has one job - to interpose itself on b8 to prevent a mate by white's rook and king. It actually had two jobs - to do the first job and to NOT get attacked by white's rook while black's king is on b8. It could have moved all along the b8 - h2 diagonal but unfortunately stopped at d6 to gaze at the scenery.>|
It wouldn't matter where on the diagonal the bishop moved to, the rook could still attack it and threaten mate at the same time.
|Feb-02-19|| ||JointheArmy: Nakamura just played this checkmate against Firouzja. |
|Feb-07-19|| ||DrGridlock: <It wouldn't matter where on the diagonal the bishop moved to, the rook could still attack it and threaten mate at the same time.>|
Nope, nope, nope.
93 ... Bg3
94 Ra7+ Kb8
Laszlo Gonda - Cedric Paci
click for larger view
Black now has 95 ... Bf2+
The reason the check doesn't work when the bishop is on d6 is that ... Bc5+ is met by Kxc5.
It's important for the Bishop to get far enough away from the king to deliver the check!
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