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Arthur Bisguier vs Jonathan Penrose
Southsea (1950), Southsea ENG, rd 8, Apr-20
Spanish Game: Morphy Defense. Wormald Attack (C77)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 3 ·  Later Kibitzing>
Nov-01-05  n30: no kibitzing? this is a piece of beauty and would make a nice puzzle, too
Feb-20-06  Fan of Leko: <n30> They would never use this for puzzle. Much too easy!
Feb-20-06  Akavall: <n30> Nice puzzle indeed!
Feb-20-06  Gregor Samsa Mendel: <n30>--You're absolutely right.
Feb-20-06  psmith: just right for monday.
Feb-20-06  zabbura2002: Black blocked his own queen and made it hard for himself to find any suitable defense.
Feb-20-06  tjshann: Almost smothered, but good enough
Feb-20-06  notyetagm: This problem presents a variation of the standard <fork-overload> trick. The Black f8-rook is the first defender of the g8-checking focal point but it is also the <only> defender of the f7-mating focal point.

By playing 29 ♖g8+!, White <deflects> the Black f8-rook away from its defense of f7. Black is mated after the forced 29 ... ♖xg8 30 ♘f7#.

Note the reason this tactical idea is called a trick: the g8-square has not one, not two, but three defenders so it is not loose. <The trick is that the first defender of the g8-square (f8-rook) is also the only defender of another critical square (f7-mating focal point along the f-file).> Deflecting the first defender from where it is the only defender (29 ♖g8+! ♖x♖) results in the f7-mating focal point being undefended (30 ♘f7#).

Feb-20-06  snowie1: It took me a minute (I know I'm supposed to say a nanosecond) but the move was forced. Good puzzle!
Feb-20-06  schnarre: This was a pretty obvious one (even for me), but nice anyway!
Feb-20-06  patzer2: Today's puzzle solution is 29. Rg8+!, which initiates a two-move mate by deflecting the overworked Black Rook away from the protection of f7 to allow 30. Nf7+#.

<notyetagm> Just curious. Where have you read or heard the term "fork-overload."

Feb-20-06  Cogano: Hi all & I hope you had a great weekend. This was way too easy, even for someone as inexperienced & relatively ignorant of chess theory as I am. This was the fastest, or at least one of the fastest, puzzles for me to solve. It took me about 2 or 3 seconds to spot it. I hope that I've improved if only a bit, as a contributing factor in solving it so quickly, rather than the puzzle being just plain too easy, Anyway, take very good care one & all & have a great day. Cheers! :)
Feb-20-06  pawntificator: Nice puzzle. It also took me a minute. I kept trying for Ng6+ and a recapture with the h-pawn. But when the king moves to g7 it just becomes the same position after the knight returns to the original square, to keep the king off of f7. Then I saw the move, reminiscent of a smothered mate theme. Very nice puzzle indeed.
Feb-20-06  Dim Weasel: So I guess 28...Nf4? is the single move losing the game at once. Or is there something decisive after 28...fxe5 29.Qxh5 ?
Feb-20-06  olydream3: a piece of fine art. easy for a monday and give chess players the realisation of winning ur opponent with a knight mate!

best monday puzzle i ever seen

Feb-20-06  logo: patzer2, can you make a comment without using the word 'deflecting'?
Feb-20-06  raminov: nice and easy
Feb-20-06  twinlark: I was trying all sorts of stupid moves for a few minutes until I stopped, really looked at it and saw that the only thing preventing the Knight mate was the R on f8. D'oh!
Feb-20-06
Premium Chessgames Member
  OhioChessFan: I might just try to solve Mondays and not have my ego deflated later in the week.
Feb-20-06  buRnINGbeNd: <patzer2> I'm not sure about <notyetagm>, but I, and I'm sure many other kibitzers, have heard the term overload used quite a bit. "Fork-overload," however is quite a new saying and I think maybe it has just been coined as new chess terminology!
Feb-20-06  Richerby: C'mon guys -- everyone knows that there's no such thing as `too easy for a Monday puzzle'!

I've never heard `fork overload' before: the standard terms, as far as I'm aware, are that the ♖f8 is `overloaded' and that 29.♖g8+ is a `deflection'. On the subject of terminology, White's 22.♘f5 is a nice example of what Kmoch calls the `Benoni jump'. This thematic sacrifice often comes up in the Benoni and King's Indian and quite often in the closed Ruy Lopez. There are several examples in his book, `Pawn Power in Chess'. I've never had the guts to play it myself but I've always been a bit cowardly about sacrificing for the attack!

Feb-20-06  dakgootje: nice and easy puzzle for monday

<So I guess 28...Nf4? is the single move losing the game at once. Or is there something decisive after 28...fxe5 29.Qxh5 ?> I think there are no forcing moves then, though white is imo MUCH better. but maybe 28...fxe5 29.Qxh5 Be8 or something saves black for a while

Feb-20-06  monad: <notyetagm Just curious. Where have you read or heard the term "fork-overload.">

Give <notyetagm> credit for the invention of a nice new chess term.

Feb-20-06  MaxxLange: If a "fork", a piece attacks 2 or more targets at once. Please explain how that applies here.
Feb-20-06  Catenaccio: If there is a fork in attacking, why should there be no fork in defending. Of course in the defence it's as bad, as it is good in the offence. My vote goes for the new term.
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