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Francisco Montoliu Cervero vs Povilas Lasinskas
Mislata op 43rd (2009), Mislata ESP, rd 6, Aug-28
Philidor Defense: Hanham. Krause Variation (C41)  ·  1-0



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Kibitzer's Corner
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Jun-15-16  greed and death: I saw the mate threats on d7 immediately but noticed that d7 was guarded by the Nf6. Therefore, the obvious solution was the exchange sac of 16. Rxf6 Bxf6 17. Qd7+ Kf8 18. Bh6+ Kg8 19. Qe8#

I feel like this was easier than yesterdays puzzle.

Premium Chessgames Member
  Penguincw: Happy Global Wind Day.

Wednesday puzzle. I got the fairly obvious exchange sac of 16.Rxf6 Bxf6. If black declines the rook, well, white is up 2 pawns, and black has a king that cannot castle (it already moved), so I like white better here.

After 16...Bxf6, I was planning to follow up with 17.Qh5+, but I couldn't see it leading to anywhere, and for good reason, because it <wasn't> going to lead to anything.


I don't think it makes a difference here, but does anyone think adding the FEN of a position, or at least a note (ex. black cannot castle) would be handy in solving puzzles like this, where it is unknown whether or not black can castle (might not matter here, but it might matter in a different puzzle).

Jun-15-16  diagonalley: at first blush this looked like a "schoolboy chess" position! ... the need to liquidate the knight on KB6 comes instinctively, whereupon black is toast :-)
Jun-15-16  Razgriz: 2/2 so far.
Jun-15-16  dfcx: white queen would check at d7 or h5, but the squares are guarded by the knight at f6. This helps me find the first move.

16.Rxf6 Bxf6 17.Qd7+ Kf8 18.Bh6+ Bg7 (Kg8 19.Qe8#) 19.Qxg7+ Ke8 20.Qd7#

Refusing the rook loses a piece, it is still hard to defend against threats of Qd7+ and Qh5+.

Jun-15-16  Boerboel Guy: Very easy! Should be a Tuesday or even a Monday puzzle.
Jun-15-16  saturn2: imho this is easy
Premium Chessgames Member
  patzer2: The game continuation was exactly what I saw for today's Wednesday puzzle (16. ?) solution, and essentially all I felt I needed to calculate.

In plugging 16. Bxf6 into the computer, it turns out 16...Bxf6 was only Black's seventh best continuation according to Deep Fritz 15. Black's position is so bad after declining to recapture, it seems a silly waste of time to even attempt to calculate those lines.

Black's decisive mistake in the game appears to be 13...Bxe6?, allowing 14. dxe6 (+1.83 @ 21 depth, Deep Fritz 15).

Instead, 13...exf4 (-0.30 @ 22 depth, Deep Fritz 15) holds for Black

Jun-15-16  stst: Two main lines following
16.RxN (guarding Qd7+)

16...........BxR (quite natural, but may opt not to)
17.Qd7+ Kf8
(i)...... Bg7, 19.Qxg7+ Ke8, 20.Qd7#
(ii).......Kg8, 19.Qe8#

16.......... not taking the "bait", opt for other defense, e.g. Qd6 (tries to exchange Q-off) 17.Qh5+ Nf7
18.Qxf7+ Kd8
19.Bg5 BxR (no other good moves)
20.Rd1 (pinning the Q) QxR
21.NxQ BxB

Premium Chessgames Member
  agb2002: White has two pawns for a knight.

Black threatens 16... Nxe6.

The best defender is the knight on f6. Therefore, 16.Rxf6:

A) 16... Bxf6 17.Qd7+ Kf8 18.Bh6+ Bg7 (18... Kg8 19.Qe8#) 19.Qxg7+ Ke8 20.Qd7#.

B) 16... h5 17.Qd7#.

C) 16... Qc7(8) 17.Qh5+ Nf7 18.Rxf7 + - [N+2P] and a winning attack.

D) 16... Bc5+ 17.Kh1

D.1) 17... Qd6 18.Qh5+ Ke7 (18... Nf7 19.exf7+ wins) 19.Rf7+ Nxf7 (19... Kxe6 20.Qf5#; 19... Ke8 20.Rd7+ andmate soon) 20.Qxf7+ Kd8 21.Bg5+ (21.Qf6+ Kc7) 21... Kc8 22.e7 wins.

D.2) 17... Ke7 18.Rf7+ Nxf7 (18... Kxe6(e8) 19.Qd7#) 19.Qd7+ Kf6(8) 20.Qxf7#.

E) 16... Nxe6 17.Rxe6 + - [N+P].

Premium Chessgames Member
  patzer2: In this Philidor defense game, White's 8. Bxf7+! is an interesting and fun demolition sacrfice.

With perfect play, the computers indicate White has no more than equality. However, the expert playing the 8. Bxf7+ sacrifice in this game found that even a master would have difficulty finding the perfect defense.

The all seeing eye of the computer prefers 8. a4 . However,I like the human fun of testing the abilities and nerves of a master with the excitement of 8. Bxf7+!?

Jun-15-16  AlicesKnight: 16.Rxf6 is interesting; the main attraction is ...Bxf6; 17.Qd7+ Kf8; 18.Bh6+ driving the BK and clearing the line for the other White R if needed after 18.... Bg7; 19.Rf1+ etc. 16...Qd6 loses a piece after 17.Qh5+ forcing ....Nf7. What happened? - yay, got it....
Jun-15-16  YouRang: Fairly easy.

click for larger view

The white Q would love to play Qd7+ followed by Bh6+, and the only thing standing in the way is Nf6 which guards d7.

Conveniently, white's Rf1 is there to remove the obstacle: <16.Rxf6>

click for larger view

Technically, the rook is immune because (as the game proves) taking it leads to quick mate: <16...Bxf6 17.Qd7+ Kf8 18.Bh6+ Bg7 19.Qxg7+ Ke8 20.Qd7#> (Black took a shortcut with 18...Kg8 19.Qe8#).

But realistically, black's other choices at move 16 are hopeless anyway. Black just loses a key defensive piece, and very shortly white's DSB will come out followed by the Ra1, and all of white's pieces will be chasing black's naked king around the board.

Premium Chessgames Member
  perfidious: This heah so-lution is sumpin even Ah seen in a nannysecond!
Jun-15-16  Doniez: Easier then yesterday
Jun-15-16  gofer: But the rook is immune!

<16 Rxf6 ...>

White threatens Qd7#.

16 ... Rf8/Rf8/h5
17 Qd7#

But the rook is immune!

16 ... Bxf6
17 Qd7+ Kf8
18 Bh6+ Kg8
19 Qe8#

Knight moves are equally bad.

16 ... Nf7
17 Qd7+ Kf8
18 Rf7+ Kg8
19 Qe7 mating

Going a whole piece down seems a miserable decision! But actually may be better than the choices below!

16 ... Nxe6
17 Rxe6

So, if we don't want to go a whole piece down immediately, then moving the queen is the only real choice, but the obvious try loses the queen in just three moves!

16 ... Qd6
17 Qh5+ Nf7
18 exf7+ Kd8 (Kf8 Bh6#)
19 Rxd6+

So perhaps we can try the other queen move...

<16 ... Qc7>
<17 Qh5+ Nf7>
<18 Rxf7! ...>

White threatens 19 Rf8++ Kxf8 20 Qf7#, so the king must move!

<18 ... Kd8>
<19 Rxe7+ Kxe7>
<20 Bg5+ ...>

The king hunt starts and the rest is just fun!

click for larger view

Premium Chessgames Member
  WorstPlayerEver: 5 seconds. My record.
Jun-15-16  leRevenant: A case of the cheeky young unknown underdog springing a surprise by thrashing the established player.
Premium Chessgames Member
  morfishine: Sweet: <16.Rxf6> standard removal of the guard (d7) 16...exf6 17.Qd7+ Kf8 18.Bh6+ Kg8 19.Qe8#


Jun-15-16  1.e4effort: Monday, maybe Tuesday level. Why? Because I solved it in just a few seconds
Jun-15-16  zb2cr: 16. Rxf6 initiates a brief King hunt if Black recaptures. Black should refuse the Rook, since the material is then equal, but I can't find a decent defense. 16. ... Qd6 doesn't work, see lines by <stst> and <gofer>,
Premium Chessgames Member
  Once: Interesting that white concludes the attack with a queen and bishop that hadn't moved from their home squares. And initiated the attack with a rook that had done nothing else in this world except get itself castled.

Who needs to develop pieces when you have such strong open lines?

Jun-15-16  Cheapo by the Dozen: I got a little sloppy and forgot that the d8 knight defends f7. But basically this was a pretty easy problem, just as the caption said.
Jun-15-16  Carlos0012358: Major Black blunder 16....Bxf6!!! Instead, 16....Bc5 extends the game, although Black will remain in the defensive and eventually White can promote a pawn and win. Nice puzzle.
Jun-15-16  Carlos0012358: After consulting Stockfish, 16....Nxe6 not as effective as 16....Bc5, although both eventually lead to the same ending.
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