White to move and mate in 4. (He chooses to show off and play the fancy mate as opposed to the mate in 2)
1. Qxb8 Nxb8 [...Rxb8 2. axb5+ Na5 3. Rxa5#] [...Ka6 2. Qxa8+ Na7 3. Qxa7+ Kxa7 4. axb5#]
2. axb5 Na6+
3. Rxa6+ bxa6
4. b6#
Originally posted by Uries [fen]rr4Q1/kpK5/2n5/1p6/P7/8/8/R7 w - - 0 1[/fen]
White to move and mate in 4. (He chooses to show off and play the fancy mate as opposed to the mate in 2)
1. Qxb8 Nxb8 [...Rxb8 2. axb5+ Na5 3. Rxa5#] [...Ka6 2. Qxa8+ Na7 3. Qxa7+ Kxa7 4. axb5#]
2. axb5 Na6+
3. Rxa6+ bxa6
4. b6#
A good one. Can you see you have worked at it.
I was thinking if you replaced the b8 Rook with a Black Queen.
(Black's last move was 1...Qf8-b8+) then the problem is sound
without having to add the 'showing off' variation.
That does mean the problem atarts off with White in check
which is against most Problem rules. But it works.
Originally posted by greenpawn34 A good one. Can you see you have worked at it.
I was thinking if you replaced the b8 Rook with a Black Queen.
(Black's last move was 1...Qf8-b8+) then the problem is sound
without having to add the 'showing off' variation.
That does mean the problem atarts off with White in check
which is against most Problem rules. But it works.
2.Qxb8 Nxb8
3.axb5+ Na6+
4.Rxa6 bxa6
5.b6 mate.
Edit: Thought 4.b6# worked, but 3...Nxa6+ is check.
Originally posted by Uries [fen]rr4Q1/kpK5/2n5/1p6/P7/8/8/R7 w - - 0 1[/fen]
White to move and mate in 4. (He chooses to show off and play the fancy mate as opposed to the mate in 2)
1. Qxb8 Nxb8 [...Rxb8 2. axb5+ Na5 3. Rxa5#] [...Ka6 2. Qxa8+ Na7 3. Qxa7+ Kxa7 4. axb5#]
2. axb5 Na6+
3. Rxa6+ bxa6
4. b6#
Yes, like greenpawn says, substitute a queen on b8 for the rook and it will work.... I don't remember saying it is against the rules to start off in check and if I have I will have to ammend that.
Originally posted by tomtom232 Yes, like greenpawn says, substitute a queen on b8 for the rook and it will work.... I don't remember saying it is against the rules to start off in check and if I have I will have to ammend that.
It's not 'against the rules', but is generally frowned on in a forced-mate type problem, because it makes the problem easier to solve by giving White fewer options for the first move.
Originally posted by SwissGambit It's not 'against the rules', but is generally frowned on in a forced-mate type problem, because it makes the problem easier to solve by giving White fewer options for the first move.
That's why I didn't say I hadn't put it in the rules but having a cooked problem is even worse.... As I am well aware of 😞 I have posted at least two of my own composition on this site that have been busted.
Originally posted by petrovitch [fen]1Q6/p4p1k/6pp/1P1qp3/3b4/6PP/5P2/5K2 b - - 0 1[/fen]
Black to move. Mate in 8.
1...Qf3 2.Ke1 (both Qh8+ and Qg8+ get mated sooner) 2...Bc3+ 3.Kf1 Qh1+ 4.Ke2 e4 5.Qh8-g8+ Kxh8-g8 and now 6.b6-g4-h4-f3-f4 and 6... Qe1 is mate if 6.Ke3 then Qf3 is mate.
These are both good problems but unfortunately this one is cooked and neither of them lead to the desired final position. 🙁
These all came from my real games. Many of these solutions are not forced or absolute. You just have to find the quickest winning method. In other words, if I tell you it's a mate in 9 then that is the quickest mate that can be found, but by no means the only winning method. And these are not difficult problems; most of them came from blitz games. It was my understanding that these problems were to be original.
Originally posted by petrovitch These all came from my real games. Many of these solutions are not forced or absolute. You just have to find the quickest winning method. In other words, if I tell you it's a mate in 9 then that is the quickest mate that can be found, but by no means the only winning method. And these are not difficult problems; most of them came from blitz games. It was my understanding that these problems were to be original.
The solution I have given is two moves quicker than the stipulation. The problems are supposed to be original but they all have to end in the position in the original post.
21 Sep '08 13:18
problemist competition
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