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Look at this. Its a mate in 6!

Look at this. Its a mate in 6!

Only Chess

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Black to play with a huge material advantage. But! We are chess players, the clever mate is better than the trade down and endgame it. What is the best move here? I could not find it. Hint - you must sac the rook.

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Hahahaha. OK this is impossible. Good luck without any silicon

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Originally posted by Exuma
Hahahaha. OK this is impossible. Good luck without any silicon
We can't even use the RHP analyze board on this one. However, we can set up a physical analyze board to solve it, right? That is the only way I have a chance to solve these longer checkmate problems.

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Is it necessay it get the other knight developed?

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Originally posted by RJHinds
Is it necessay it get the other knight developed?
Kudos to you if you didn't use an engine because that is what I was thinking.

I probably would play ...Nc6 in real life because the rook can't be taken immediately.

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Originally posted by tomtom232
Kudos to you if you didn't use an engine because that is what I was thinking.

I probably would play ...Nc6 in real life because the rook can't be taken immediately.
Another possibility is to check with the queen at g2.

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Originally posted by RJHinds
Another possibility is to check with the queen at g2.
I thought about that too but then ...Nc6 doesn't work after white takes the rook because then the king can retreat to c2.

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Originally posted by tomtom232
I thought about that too but then ...Nc6 doesn't work after white takes the rook because then the king can retreat to c2.
This is the way the first move will look:



Or maybe better is:

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Originally posted by RJHinds
This is the way the first move will look:

[pgn]
[FEN "rn4k1/ppp2pbp/6p1/4p3/1PP1nP2/3rP3/P2PK3/RN3N1q b - - 0 1"]
1. Qg2+ Kxd3 {Then maybe} 2. Qxf1+ {now if...} 2...Kxe4 3. Qxc4+ Kf3
[/pgn]
3...f5 seems to lead to mate just not in 6.

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Originally posted by tomtom232
3...f5 seems to lead to mate just not in 6.
Yes that looks better, How about this:

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3 edits
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What happens if the white king goes to e1 or d1 like this?



or

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We don't need to worry about that second variation anymore because it just transposed into this one:



Any suggestions as to changes is this variation so we can get a checkmate in 6 moves? Would 1. f4 or 1. Nc6 be worth trying? This Qg2+ line will work if black makes the most logical moves, however, this is a puzzle and logical moves are not always part of the solution. 1. Rxd2+ is another possibility.

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How about this:



Well, I have to stop and eat supper now.

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Another possibility is ...



White might try ...



White might try ...



It appears the the two white knights need to stay put and guard the d2 pawn because one is not enough unless the Black queen is not attacking d2.

Black might try ...

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