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Sasa Martinovic vs Vjekoslav Biliskov
25. Zadar Open - A tournament (2018), rd 1, Dec-15
Queen's Gambit Declined: General (D30)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-30-20
Premium Chessgames Member
  FSR: Mostly what <saturn2> said, but after 30...Qe7 I would play 31.Rxe7 Nxe7 (31...Rxc7 32.Re8#) 32.Qxe7.
Nov-30-20  stacase: <GoldenKnight: I got this one fairly fast, but it did seem a bit tricky for a Monday.> BINGO!

I looked at 30.Qc7 first and then a whole bunch of other possibles because it didn't seem like a Monday solution. But in the end it's what I would have done over the board, so chalk one up for Monday.

Nov-30-20  Nullifidian: I saw 30. ♕c7 straightaway, exploiting black's back rank issues, but looked around to make sure there wasn't a stronger continuation, since merely winning a bishop wasn't very Monday-like. When I couldn't find anything else, I was forced to concede that this was it.
Nov-30-20
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop and a knight.

The black rook protects the back rank and the black bishop is defenseless. White can attack both with 30.Qc7:

A) 30... Rxc7 (or 30... Nd8) 31.Re8#.

B) 30... Rb8 31.Qxb8+ and mate in two.

C) 30... Qd8 31.Qxb7 wins decisive material (31... Rc7 32.Qxc7).

Nov-30-20  Walter Glattke: 31.Qc7 h6 32.Qxb7 Rf8 33.Bxb5 2 pieces 31.-Qe7 32.Rxe7 (32.Qxe7? Nxe7 33.Rxe7 Ba8) Nxe7 33.Qxe7 Bd4 34.Bd7 Ra8 35.Qc6 (33.-Rf8? 34.Bd6)
Nov-30-20  Brenin: The fork 30 Qc7 leaps out, though simply winning a piece is rather a weak conclusion for a Monday. White's 22 Rxc5 was hard to explain, handing the initiative to his opponent, who promptly handed it back with the premature 23 ... d4. Black could have played 29 ... Qxf4 30 Bxf4 Rc8, though 31 Bc7 is then uncomfortable for him.
Nov-30-20  morfishine: <30.Qc7> and White wins
Nov-30-20  vladimir85: Qc7 Nd8 and Re8
Nov-30-20  awfulhangover: 30.Qc7 found, but a silent move that You easily could have missed otb. Not a Monday puzzle!
Nov-30-20  Lambda: Thought process for this puzzle: Well, it's possible to play Qc7 because of the back rank. I wonder if it achieves anything?
Nov-30-20  lost in space: 30. Qc7 and all is over
Nov-30-20
Premium Chessgames Member
  HeMateMe: Back rank deflection. 30 seconds.
Nov-30-20  goodevans: <awfulhangover: 30.Qc7 found, but a silent move that You easily could have missed otb. Not a Monday puzzle! >

Not the easiest Monday it's true but definitely more of a Monday than last Monday's Serper vs Barsov, 1988!

Nov-30-20  TheaN: <30.Qc7> and that's that, fatal overload.

I see kibitzers complaining about this being a tough Monday; even though there's truth to that, <what else>?

Black resigned on his 30th move, so it's not that CG could include an alternative into the mix, and this would be on the easy side for a Tuesday. Decent pick, I'd say.

Nov-30-20  RandomVisitor: After 25.Nf4 black had an even game with 25...Rd8, defending the d pawn and preventing Nd5:


click for larger view

Stockfish_20112916_x64_modern:
NNUE evaluation using nn-62ef826d1a6d.nnue enabled

<45/24 02:49 0.00 25...Rd8 26.Re1 Qc5> 27.Nd3 Nxd3 28.Bxd3 g6 29.Rc1 Qa3 30.Bc4 d3 31.Bf4 Qc5+ 32.Be3 Qf5 33.Rd1 Be7 34.Qe1 h5 35.Qf1 Bc5 36.Qf2 Be7

Nov-30-20  zb2cr: White exploits Black's weak back rank to win material. 30. Qc7 threatens the Black Bishop @ b7 and the Black Rook @ c8. If Black captures, he gets mated by the White rook @ e1.

30. ... Rb8; 31. Qxb8+ with mate in two.

30. ... Qd8; 31. Qxb7 White has won a piece and efforts to trap the White Queen come to nothing (see <agb2002>'s comments, for example).

Nov-30-20  Damenlaeuferbauer: After long pondering, the reigning Croatian champion of 2020 GM Sasa Martinovic finally found the very nice move 30.Qc7!, exploiting black's back rang weakness and winning at least a piece.
Nov-30-20
Premium Chessgames Member
  gawain: I wasted a minute or three looking for a forced mate on the back rank, then settled for 30 Qc7 to win a clear piece. A good start for the week.
Nov-30-20  DrGridlock: Difficult for Monday, only if the first move is not a check. There is only one check white can give, and it leads to the notion that a back rank check (if the rook can be dislodged) is fatal to black. Now what else does that rook do? It also protects the knight, and keeps the queen from invading on c7.
Nov-30-20
Premium Chessgames Member
  scruggs: Who is me got the puzzle and I didn't on a Monday... you can't imagine how bad I feel
Nov-30-20
Premium Chessgames Member
  Fitzgerald Dawson: THANKS SCRUGGS !
it was lucky brake .
i'm just learning to play .
fun with you and chessgame.com
Nov-30-20
Premium Chessgames Member
  Messiah: Easiest ever.
Nov-30-20  YoungEd: Ditto <gawain>.
Nov-30-20  Mayankk: Tried all ways to sacrifice the Queen knowing it’s a Monday puzzle. And that helped me zero in on Qc7. It leaves Black with many choices, unfortunately all of which are dire and leave it down at least a piece.

Wish there was a way to have puzzles without a difficulty rating.

Nov-30-20  hdcc: Monday puzzles: putting "peasy" into "easy".
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