Chess problem 37 / Schachaufgabe 37

jaki01 (74) in chess • 8 years ago (edited)

English

Today you have to deal with a position which I just have created as a little brain teaser for you. Yes, black has a somewhat cramped position, but on the other hand he has a clear material advantage. Nevertheless it's white who will decide this exciting battle in his favor - do you find the moves which ensure the victory? :)

Deutsch

Heute habt ihr es mit einer Stellung zu tun, die ich mir gerade als kleine Kopfnuss für euch ausgedacht habe. Ja, die schwarze Stellung sieht etwas verkrampft aus, aber immerhin verfügt er über einen klaren materiellen Vorteil. Dennoch ist es Weiß, der aus dieser aufregenden Schlacht als Sieger hervorgehen wird - sehr ihr, welche Züge ihm den Sieg bescheren? :)

FEN: 6kr/1pp2p1p/p2p1pp1/P2P1P1n/1PP4R/3K1P1P/4P2n/2B5 w - - 0 1

White to move: / Weiß am Zug:

chess quiz board-games deutsch hive-157286

8 years ago by jaki01 (74)

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jaki01 (74) · 8 years ago (edited)

Fastest solution (found by @iceblue, but congrats also to @smartlegend for mentioning the winning move 1. Rh5! first):

1. Rxh5! gxh5 (Other moves lose as well.)
2. Bh6! Nf1 (2. ... h4, which nobody suggested, extends the check mate a little bit.)
3. h4! Ng3
4. e4 Nf1
5. b5 Ng3
6. c5! dxc5
7. b6 cxb6
8. d6 c4+
9. Kd4 Ne2+
10. Ke3 Nc3
11. d7 Nd1+
12. Kd4 c3
13. d8R#

Final position:

lintang (57) · 6 years ago

Wow, now that was really something for chess epicures, where strategical elements were combined with tactics and endgame play!

smartlegend (33) · 8 years ago

Yeah. Well-done guys! {3}. h4 eases a lot of stress and is sound. Good chess.

pompe72 (64) · 8 years ago

I disagree

Rxh5, Nf1
Rh4, Ng3
Bh6, Nxf5

jaki01 (74) · 8 years ago (edited)

Rxh5 Nf1
Rh4 Ng3
fxg6 fxg6
c5 Kf7
cxd6 cxd6
Rc4 Re8
Bf4 Nxe2
Bxd6
And white wins (even if only after 1. ... gxh5 there follows a spectacular checkmate).

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pompe72 (64) · 8 years ago

Rxh5 Nf1
Rh4 Ng3
fxg6 Nf5

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jaki01 (74) · 8 years ago

Rxh5 Nf1
Rh4 Ng3
fxg6 Nf5
Rxh7 Rxh7
gxh7+ Kxh7
Bf4 (idea: b4-b5-b6)
And white has a clear advantage.

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pompe72 (64) · 8 years ago

Clear advantage isn't a win and it could take more than 13 moves.

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jaki01 (74) · 8 years ago

It is a winning position, black will lose for sure.

The only critical move is 1. ... gxh5, because after every other move black simply has lost the knight, while his position is still bad. Therefore it is logical and most interesting to examine first what happens after 1. ... gxh5 which ends in a forced checkmate. Nobody wrote that white will always win within 13 moves.

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pompe72 (64) · 8 years ago

You wrote the "Fastest solution". I can find a faster solution if I played both sides.

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Show 1 more reply

smartlegend (33) · 8 years ago (edited)

Rxh5, Nf1
Rh4, Ng3
e4, gxf5
Bh6, fxe4
fxe4, Nf5
Rg4+, Ng7
Bxg7, black resigns

Or

Rxh5, Nf1
Rh4, Ng3
e4, Nh5
Rxh5!, gxh5
Bh6, black resigns

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pompe72 (64) · 8 years ago

Rxh5 h6
Rxh6 g5
Rxh8 Kxh8
Ke3

is it a clear win for black?

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smartlegend (33) · 8 years ago

Its a loss for black. Bishop performs better than Knight in open games like this. Besides, White also has better position and material advantage.

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jaki01 (74) · 8 years ago

Right, especially as the knight is trapped anyway in his variation ... :)

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pompe72 (64) · 8 years ago

I still disagree

Rxh5 gxh5
Bh6 Nf1
h4 Ng3
e4 Nxf5
e4xNf5
White is risking a stalemate.

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jaki01 (74) · 8 years ago

Ok, let's play a game from the start position until the end. I have white, you black. The winner gets 1000 Steem from the loser. That should make things clear. :-)

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pompe72 (64) · 8 years ago

I found an even better move.
1.Rxh5 gxh5
2.Bh6 h4!

Now I can move my Knight. f1 g3 h5 g7 ...

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jaki01 (74) · 8 years ago

Check my solution above: I wrote myself that 2. ... h4 extends the number of moves until chekmate, but it doesn't help in the end ...

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pompe72 (64) · 8 years ago

I wish I had 1000 Steem. And I'm no grandmaster.

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jaki01 (74) · 8 years ago

I allow you the help of any chess software you wish. :)

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pompe72 (64) · 8 years ago

No fun using software. Found another move though.

Rxh5 h6!

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jaki01 (74) · 8 years ago

My friend, "Mr. disagree", the problem is solved, finished, "Ende Gelände". Try again next time and good luck! :-)
No black move helps here ... we cannot analyse every single possible black move ... if you decide for one variation I can show you how to refute it, but I have not the time to examine one hopeless move after the other. :)

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pompe72 (64) · 8 years ago

If you cannot analyse every single black move then you cannot claim that a precise move is a sure victory.

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Show 9 more replies

pompe72 (64) · 8 years ago

It' that after e4xNf4 I'm forced to move a pawn so I studing if there' someway to get a stalemate.

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iceblue (54) · 8 years ago

The idea 1.Txh5 has already been mentioned: 1...gxh5 2. Lh6, yes!, cuts the king off on the back rank 2...Sf1 3.b5 - now black can not take with 3...axb5 due to 4.cxb5 and white creates a passed pawn with a5-a6, hence 3...Sg3 4.e4 h4 (moving the knight back and forth does not help either) 5. c5! - now black has to take with 5....dxc5 otherwise white will play c5-c6 winning again by creating a passed pawn - 6.b6 cxb6 7.d6 Sh5 8.d7 Sf4+ (a last try) 9. Ke3 +-
I think that is the winning line isn't it? ; if Black does not take back the rook on h5 white should win as well (the knight on h2 seems to be lost), but the lines are not that forced I think.

jaki01 (74) · 8 years ago (edited)

Rather good! I write it down as an overseeable 'move chain'. :)

Rxh5 gxh5
Bh6 Nf1
b5 Ng3 (3. e4 or 3. c5 work as well: the idea counts!)
e4 h4
c5! dxc5 (Other black moves lose as well, just try it out.)
b6 cxb6
d6 Nh5
d7 And white wins, but nevertheless black can extend the game a little bit by playing the useless 8. ... Nf4+.
This possibility to play 8. ... Nf4+ is the reason why neither 3. e4 nor 3. c5 nor 3. b5 is the fastest way to win.

What is the fastest way to win as white after

Rxh5 gxh5
Bh6 Nf1
??? :-)

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iceblue (54) · 8 years ago

Okey, then 3. h4 in order to prevent black playing h4 himself; with that move the black knight cannot go to h5 any longer and is stuck in the corner. That should be the right idea, right?

jaki01 (74) · 8 years ago

Congrats, finally you got it! :)

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smartlegend (33) · 8 years ago (edited)

1.Rxh5, gxh5
2.Bh6, Nf1
3.e4, ......
(white plays with an active king on the queen side & wins the game)

jaki01 (74) · 8 years ago

Rxh5 gxh5
Bh6 Nf1
Interesting ... but I need a clear win now, not a general evaluation! :)

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heimindanger (68) · 8 years ago (edited)

Ok I also think this is the only line that can give a clear win. Ideas of Bf4 to trap the knight on f1 seems too slow and will allow black pieces to activate the rook... So:

1.Rxh5, gxh5
2.Bh6, Nf1
3.c5 dxc5
4.bxc5 and black cannot stop d6 d7 d8

3... Ng3
4.c6 bxc6
5.dxc6 Nxf5
6.b5 and now the a pawn will become the hero

Edit: I just noticed black can do Nxh6 and Kg7 to stop the pawn. Maybe we should keep e4 somewhere hehe

jaki01 (74) · 8 years ago

I will have time to reply later ... but indeed you should consider how game will continue after your 3. ... Ng3.

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smartlegend (33) · 8 years ago (edited)

1.Rxh5, gxh5
2.Bh6, Nf1
3.e4, ......
After,
3.e4. Ng3 (Ng3 is a total waste of time by black. the black Night has no game left)

OR
3.e4, b6
4.b5, bxa5
5.bxa6, a4
6.a7, ......
(white queens first and wins the game)
IF blacks responds {4}....., axb5. White proceeds to queen with {5} a6, ..

OR
3.e4, c6
4.dxc6, bxc6
5.b5, cxb5
6.cxb5, axb5
7.a6, ...
(White goes on to win the game again)

jaki01 (74) · 8 years ago

Rxh5 gxh5
Bh6 Nf1
e4
Now, as you wrote, pawn moves like 3. ... b6 or 3. ... c6 are just suicide.
Therefore the only moves which don't lose immediately are knight moves or 3. ... h4 (3. e4 is only a transposition of moves: in case of 3. c5 black answers with 3. ... Ng3, then 4. e4 is necessary).

But want I want to know from you is how exactly white wins after:

Rxh5 gxh5
Bh6 Nf1
e4 Ng3
How will you continue as white?

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smartlegend (33) · 8 years ago

After black plays 4.Ng3
5.c5,dxc5
6.bxc5,Nh1 or Nf1
7.d6,cxd6
8.cxd6,Nf2+
9.Qd2,Nxh3
10.d7, black resigns.
(white queens with d8 and check mates black.)

jaki01 (74) · 8 years ago (edited)

Rxh5 gxh5
Bh6 Nf1
e4 Ng3
c5 h4 (If black takes the pawn it always ends fast.)
How does white continue? (By the way neither 3. e4 nor 3. c5 are the fastest winning moves here, but I accept them as long as you win in the end. :) )

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jaki01 (74) · 8 years ago

Maybe I should add why I am so persistent to play all moves until the bitter end: you should be aware that chess friends of many different levels are watching here. Not for all of them it is so obvious how white can win at all, if black just waits and just does nothing ... :)

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kajalpats (55) · 8 years ago (edited)

Bishop h6 Knight g3 2.b5 a6xb5 3. cxb5 c6 4. a6 bx16 5.bxa6 and eventually promoted the pawn to a queen

jaki01 (74) · 8 years ago

Bh6 Ng3
b5 Nxf5

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kajalpats (55) · 8 years ago

Are these the first two moves?

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jaki01 (74) · 8 years ago

No. :)

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kajalpats (55) · 8 years ago

Oh :D

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williamtrouble (36) · 8 years ago

White bishop to H6. Black to move..

jaki01 (74) · 8 years ago

I prefer move orders instead of single moves ... :)

Bh6 Ng3

deism12 (50) · 8 years ago

how long have you been playing chess?
you're so good at it.. keep it up! :)

jaki01 (74) · 8 years ago

Many years ... want to learn it, too? :)

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iamkunaning (61) · 8 years ago

Hello..how many moves???

jaki01 (74) · 8 years ago

Find it out. :)

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duckmast3r (62) · 8 years ago

I'm not too good at chess. My brother is though.

jaki01 (74) · 8 years ago

Ask him ... :)

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anassohail (17) · 8 years ago

well wished i knew chess ..would be in my college chess team !!!

shirish5 (57) · 8 years ago

Nice lessons! I love chess.

moneyrace (48) · 8 years ago

Eine total geniale Idee Schachaufgaben auf Steemit mit uns zu teilen ! Wie lange spielst du schon ? :)

jaki01 (74) · 8 years ago

Haha, ich hoffe, die Angabe "Schon viele Jahre." ist präzise genug?
Freut mich, dass dir die Aufgaben gefallen! :)

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moneyrace (48) · 8 years ago

Klar das passt ! :D

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pompe72 (64) · 8 years ago

Bh6, Ng3
Bf4 (ha, now you're gonna have to move a Knight in f1)

jaki01 (74) · 8 years ago

Bh6 Ng3
Bf4 Nxf5 (attacking your rook)

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pompe72 (64) · 8 years ago

Oh crap, I wanted to play Re4 but my damn bishop is the way. Back to the old drawing board.

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rizatr (45) · 8 years ago

Naja, habe schon seit Jahren kein Schach mehr gespielt, aber
C3->H6 würde ich anfangen

jaki01 (74) · 8 years ago

Du meinst c1-h6? Aber dann folgt:

Lh6 Sg3 und der Springer droht auf f5 zu schlagen.

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rizatr (45) · 8 years ago

ungefähr 1 Minute nach dem Kommentar habe ich meine Niederlage gesehen.. naaj seit Jahren kein Schach gespielt :D

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jaki01 (74) · 8 years ago

Macht doch nichts ... vielleicht helfen meine Schachquiz ein wenig dabei, wieder in Übung zu kommen? ;)

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rizatr (45) · 8 years ago

Mal gucken, da ich jede Art von Quiz eigentlich mag ^_^

thebest1 (28) · 8 years ago

GREAT situation. tnx. it made me think

jaki01 (74) · 8 years ago

I am glad to see that you enjoyed it ... :)

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tangmo (72) · 8 years ago

Thank you for your kindness! ;)