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David Norwood vs Sean Marsh
"Operation Norwood" (game of the day Dec-04-2015)
Walsall Kipping Jubilee Tournament (1992), Walsall ENG, rd 1, Apr-??
Formation: King's Indian Attack (A07)  ·  1-0
To move:
Last move:

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Given 24 times; par: 52 [what's this?]

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sac: 26.Rxb7 PGN: download | view | print Help: general | java-troubleshooting

TIP: To flip the board (so black is on the bottom) either press F or click on the e7 square.

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Jun-17-17  mel gibson: Yes - the computer confirms - mate in 8.
This was fantastic - it's all forced.

28. Qxc6+ (28. Qxc6+ (♕e4xc6+ ♔b7xc6 ♘f3xd4+ ♔c6-b6 ♖e1-b1+ ♔b6-a5 ♗f4-d2+ ♔a5-a4 ♗g2-c6+ ♔a4xa3 ♗d2-c1+ ♔a3-a2 ♖b1-b2+ ♔a2-a3 ♘d4-c2+) +M8/16 4)

Jun-17-17  AlicesKnight: I saw the main break-in (for once on a Saturday) with Qxc6+, Nxd4+, Rb1+ and Bb7+, and figured that there was a R-file mating-net there somewhere. Beautifully played by Norwood.
Jun-17-17  radtop: The only thing more amazing than the game was me solving it. It's easier to solve a puzzle when you know it has a solution.
Jun-17-17  morfishine: Saw a game that was very similar if not identical that featured the Black King walking the plank down the a-file. This aided me greatly in seeing this solution to the end. But I can't claim real credit since the possibility exists the game I previously saw was none other than this one here. Don't know for sure

*****

Jun-17-17  bla bla: very nice combination
Jun-17-17  bla bla: A8: pgn4web v2.82 debug info B8: show this position FEN string C8: show this game PGN source data D8: show full PGN source data E8: open/update analysis board F8: close/pause analysis board G8: shortcut squares help H8: pgn4web help A7: pgn4web website B7: undo last chessboard position update C7: redo last undo D7: toggle highlight last move E7: flip board F7: toggle show comments in game text G7: toggle autoplay next game H7: toggle enabling shortcut keys A6 B6 C6: search previous finished game D6: search previous unfinished game E6: search next unfinished game F6: search next finished game G6 H6 A5: repeat last search backward B5: search prompt C5: repeat last search D5: search previous win result E5: search next win result F5 G5 H5 A4: search previous event B4: search previous round of same event C4: search previous game of same black player D4: search previous game of same white player E4: search next game of same white player F4: search next game of same black player G4: search next round of same event H4: search next event A3: load first game B3: jump to previous games decile C3: load previous game D3: load random game E3: load random game at random position F3: load next game G3: jump to next games decile H3: load last game A2: stop autoplay B2: toggle autoplay C2: autoplay 1 second D2: autoplay 2 seconds E2: autoplay 5 seconds F2: autoplay custom delay G2: replay up to 6 previous half-moves, then autoplay forward H2: replay the previous half-move, then autoplay forward A1: go to game start B1: move 10 half-moves backward C1: move 6 half-moves backward D1: move backward E1: move forward F1: move 6 half-moves forward G1: move 10 half-moves forward H1: go to game end
Jun-17-17  bla bla: is it good
Jun-17-17  stacase: <radtop: ...It's easier to solve a puzzle when you know it has a solution.>

That was my thought as I was going move for move banging this one out.

Jun-17-17
Premium Chessgames Member
  agb2002: White has the bishop pair for a rook and a knight.

Black threatens fxe4.

White can start a mate attack with 28.Qxc6+ Kxc6 29.Nxd4+ Kb6 30.Rb1+:

A) 30... Ka6 31.Bb7+ Ka5 32.Bd2+ Ka4 33.Bc6+ Kxa3 34.Nb5+

A.1) 34... Ka2 35.Nc3+ Ka3 36.Bc1#.

A.2) 34... Ka4 35.Nc3+ Ka5 36.Rb5+ Ka6 37.Bb7#.

B) 30... Ka5 31.Bd2+ Ka4 (31... Ka6 32.Bb7#) 32.Bc6+ transposes to A.

Jun-17-17  Eusebius: Black's short initiative ends with with the uninspired 20...Bf8. After that White unleash his combination like an orginized firework.
Jun-17-17  gofer: I am sorry, but this is so far from <Very Difficult>. This is more like a Tuesday or Wednesday level POTD. Our queen is trapped and there are only two or three meaningful replies. Only one of these treatens mate...

<28 Qxc6+ Kxc6>

<29 Nxd4++ Kb6>

<30 Rb1+ ...>


click for larger view

Okay, so we have forced the king the a file and have three minor pieces to complete the mate while Rb1 keeps the king on A file. This is still not very difficult. Both replies for black transpose, so we only have one variation to follow;

30 ... Ka5
31 Bd2+ Ka4 (Ka6 Bb7#)
32 Bc6+ Kxa3

<30 ... Ka6>
<31 Bb7+ Ka5>
<32 Bd2+ Ka4>
<33 Bc6+ Kxa3>


click for larger view

At this point White found a quicker kill than me, but I found a very pretty one with the white knight doing all the work!

<34 Nb5+ Ka4> (Ka2 35 Nc3+ Ka3 36 Bc1#)

<35 Nc3+ Ka5> (Ka3 36 Bc1#)

<36 Nd5+ Ka6>

<37 Nc7#>


click for larger view

Far too easy for a <Saturday>!

Jun-17-17
Premium Chessgames Member
  malt: 28.Q:c6+ K:c6 (no alternative) 29.N:d4+ Kb6 30.Rb1+ Ka6 31.Bb7+ Ka5 32.Bd2+ Ka4 (come into my parlour)33.Bc6+ K:a3 34.Bc1+ Ka2 35.Rb2+ ...Ka3/..Ka1 36.Nc2#
Jun-17-17  mel gibson: This is textbook chess.
The 2 Bishops become extra powerful when working together on diagonals - just like 2 Rooks working on ranks or files. They can move the King down the board.

This is beautiful chess -
& is why I am always sorry to see a bishop swapped for a knight early in a game - we don't get to see this often.

Jun-17-17  clement41: The light square edge white has since Rxb7 is obvious, as is the discovery. The direction clearly is, then, Qxc6+ but these considerations need to be validated by calculation (till mate, else white is losing) Qxc6+ Kxc6 Nxd4+ Kb6 Rb1+ Ka5 (...Ka6 Bb7+ delays one move) Bd2+ Ka4 Bc6+ Kxa3 Bc1+ (Nb5+ mates too while Nc2+?? loses) Ka2 Rb2+ and Nc2# next move
Jun-17-17
Premium Chessgames Member
  bubuli55: Very difficult is 26.Rb7
Jun-17-17  piltdown man: A lovely combination.
Jun-17-17  Iwer Sonsch: The Queen is a Desperado.
White could exchange Queens on e6, winning a pawn, but White is down the Exchange.

28.Qxc6+ Kxc6 29.Nxd4++ Kb6 30.Rb1+ Ka6 (or Ka5 31.Ne6+) 31.Bb7+ Ka5 32.Ne6+, and White is much better (it might be better not yet to take back the queen, but at least, the combination is now justified).

Jun-17-17  Iwer Sonsch: Yup, mate was in the air. But a winning move is a winning move, and I should have been able to find the continuation OTB.
Jun-17-17  Iwer Sonsch: Actually, White has nothing after 32.Nc6+? Ka4 33.Nxe7 Rxe7 (0.95 @depth 23), but it still justifies the first part of the combination, as White clearly isn't losing.
Jun-17-17
Premium Chessgames Member
  Jimfromprovidence: If you are looking for a more difficult puzzle try this position after black plays 25...e5 instead of the text move.


click for larger view

Jun-17-17  Al2009: After 21...Rgg8
White wins with 22. Nd6+! Bxd6 23. exd6 Qxd6 24. Qb2! Ba6 (24...Ba8 is worse)

25. Bf4!

A) 25...Nde5 26. Bxc6! Qxc6 27. Qb8+ Kd7 28. Qxa7+

B) 25... Nce5 26. Bb7+ Bxb7 (26...Kd8 27. Bxe5 and Bxa6 ) 27. Qxb7+ Kd8 28. Bxe5 Nxe5 29. Qxa7! Nd7 (forced) 30. Qa8+ Ke7 31. Nf5+!

C) 25...e5 26. Nf5! Qe6 27. Bxc6 Qxf5 (forced) 28. Bxd7+ Kxd7 29. Rxe5 Qxf4 30. Rd5+! Ke7 31. Qe2+! Kf6 32. Rxc5!

Jun-17-17  wtpy: Pretty easy for a Saturday.
Jun-17-17
Premium Chessgames Member
  thegoodanarchist: The pun could have been "Steak Dinner".

Because at the end, Black is dead meat on A1

Jun-17-17
Premium Chessgames Member
  TheFocus: <thegoodanarchist> That was a good one!!
Jun-17-17  Whitehat1963: Amazing finishing combination!
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