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5/12/2012 - Mate in 5

  • 13 months ago · Quote · #41

    ganv

    Bryan681972 wrote:

    I see  

    1.Nf7+..Kg8 , 2.Nd8+..Kh8 3.Qe8+..Ng8 4.Qxg8..Kg8 5.Re8#

    1. Nf7+ Kg8 2. Nh6+ Kf8 3. Qf7#.

    1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Ng8 4. Nf7#.

    1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Nxe8 4. Rxe8+ Bf8 5. Rxf8#.

    With best defense by black it is a checkmate in five.

    On 1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Ng8, if 4. Qxg8+ then 4...Kxg8 5. Re8+ is not checkmate because of 5...Bf8.  No checkmate.

    Thanks.  I missed the Bf8 block which extends mine to mate in 6.

    I don't understand your first line.  After 2. Nh6+, black would play Kh8 not Kf8.

    Your last line looks right:

    1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Nxe8 4. Rxe8+ Bf8 5. Rxf8#.

  • 13 months ago · Quote · #42

    Bryan681972

    ganv wrote:
    Bryan681972 wrote:

    I see  

    1.Nf7+..Kg8 , 2.Nd8+..Kh8 3.Qe8+..Ng8 4.Qxg8..Kg8 5.Re8#

    1. Nf7+ Kg8 2. Nh6+ Kf8 3. Qf7#.

    1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Ng8 4. Nf7#.

    1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Nxe8 4. Rxe8+ Bf8 5. Rxf8#.

    With best defense by black it is a checkmate in five.

    On 1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Ng8, if 4. Qxg8+ then 4...Kxg8 5. Re8+ is not checkmate because of 5...Bf8.  No checkmate.

    Thanks.  I missed the Bf8 block which extends mine to mate in 6.

    I don't understand your first line.  After 2. Nh6+, black would play Kh8 not Kf8.

    Your last line looks right:

    1. Nf7+ Kg8 2. Nd8+ Kh8 3. Qe8+ Nxe8 4. Rxe8+ Bf8 5. Rxf8#.

    My 2...Kf8 line was a correction of the GabrielBedard line you responded to, although I'm sure it was supposed to read 2...Kh8.  Sorry for the confusion.

  • 13 months ago · Quote · #43

    LegoPirate

    GabrielBedard wrote:

    Isn't it mate in 4?

    1.Nf7+..Kg8 , 2.Nh6++..Kf8 , 3.Qg8+..Qxg8 , 4.Nf7#

    No, 1.Nf7+..Kg8 , 2.Nh6++..Kh8 , 3.Qg8+???..Qxg8 , 4.Nf7+??? Qxf7

  • 12 months ago · Quote · #44

    MinutManOfSkolastika

    This one doesn't work. :-(

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