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Beat caveatcanis


  • 14 months ago · Quote · #1

    caveatcanis

    In the following position (from my most recent OTB tournament) I have just blundered by moving my bishop from e6 to f7. (I should have put the bishop on d7.)

    So: White to play and win!

  • 14 months ago · Quote · #2

    GSHAPIROY

    And why can't black play 4. ... Rd8?

  • 14 months ago · Quote · #3

    caveatcanis

    GSHAPIROY wrote:

    And why can't black play 4. ... Rd8?

    4. ... Rd8 is answered by 5. Qe5+ Kg8 6. Qg7#

  • 14 months ago · Quote · #4

    GSHAPIROY

    caveatcanis wrote:
    GSHAPIROY wrote:

    And why can't black play 4. ... Rd8?

    4. ... Rd8 is answered by 5. Qe5+ Kg8 6. Qg7#

    That's true, but I'm not sure that 5. Rxa8 actually wins

  • 14 months ago · Quote · #5

    Scottrf

    GSHAPIROY wrote:
    caveatcanis wrote:
    GSHAPIROY wrote:

    And why can't black play 4. ... Rd8?

    4. ... Rd8 is answered by 5. Qe5+ Kg8 6. Qg7#

    That's true, but I'm not sure that 5. Rxa8 actually wins

    Lets play a forum game from that position. You play black.

  • 14 months ago · Quote · #6

    GSHAPIROY

    Scottrf wrote:
    GSHAPIROY wrote:
    caveatcanis wrote:
    GSHAPIROY wrote:

    And why can't black play 4. ... Rd8?

    4. ... Rd8 is answered by 5. Qe5+ Kg8 6. Qg7#

    That's true, but I'm not sure that 5. Rxa8 actually wins

    Lets play a forum game from that position. You play black.

    Okay, you and caveatcanis play black.

    My move is 5. ... Kf7

  • 14 months ago · Quote · #7

    GSHAPIROY

    theemathas wrote:
    GSHAPIROY wrote:
    caveatcanis wrote:
    GSHAPIROY wrote:

    And why can't black play 4. ... Rd8?

    4. ... Rd8 is answered by 5. Qe5+ Kg8 6. Qg7#

    That's true, but I'm not sure that 5. Rxa8 actually wins

    Count the pieces... White has a rook up

    I realise that, and we're trying to prove whether white wins or not with that.

  • 14 months ago · Quote · #8

    Scottrf

    GSHAPIROY wrote:

    Okay, you and caveatcanis play black.

    My move is 5. ... Kf7

    Your move (I played your only move).

  • 14 months ago · Quote · #9

    caveatcanis

    5. Rxa8+ actually forces mate in 10.

    I checked the position with my computer before posting, but decided that expecting people to find the mate would make the problem too hard.

  • 14 months ago · Quote · #10

    GSHAPIROY

    caveatcanis wrote:

    5. Rxa8+ actually forces mate in 10.

    I checked the position with my computer before posting, but decided that expecting people to find the mate would make the problem too hard.

    How?

  • 14 months ago · Quote · #11

    caveatcanis

    GSHAPIROY wrote:
    caveatcanis wrote:

    5. Rxa8+ actually forces mate in 10.

    I checked the position with my computer before posting, but decided that expecting people to find the mate would make the problem too hard.

    How?

    One line is:

    5.Rxa8+ Kf7 6.Qe8+ Kf6 7.Qh8+ Kf5 8.Qc8+ Ke4 9.Qxg4+ Ke5 10.Qe2+ Kf6 11.Re8 Be7 12.Qxe7+ Kf5 13.Qg5#

    but there are many side-variations.

  • 14 months ago · Quote · #12

    KEEPONPUsHINGTODAY

    Scottrf wrote:
    GSHAPIROY wrote:

    Okay, you and caveatcanis play black.

    My move is 5. ... Kf7

     

    Your move (I played your only move).

    And I play 7. ... Qf6

  • 14 months ago · Quote · #13

    Scottrf

    Presumably you meant Qe6?

    Ra6 looks pretty clean but even Qxc5 is safe because it covers g1, stopping back rank mates. Even Qxe6 is enough.

  • 14 months ago · Quote · #14

    apostolis1

    Really great problem !! And I liked that you took it from one of your own games !!

  • 14 months ago · Quote · #15

    meeeep

    Seems legit. Did you use a computer to check every move? Because the position is really quite complex and tends to result in unexpected "better" winning moves.

  • 14 months ago · Quote · #16

    caveatcanis

    meeeep wrote:

    Seems legit. Did you use a computer to check every move? Because the position is really quite complex and tends to result in unexpected "better" winning moves.

    Yes - I computer-check positions before I post them, because I don't want to waste anyone's time.

    On the other hand, my comments on other people's positions are rarely checked, which is why they're often wrong.

  • 14 months ago · Quote · #17

    meeeep

    Ah ok thanks for the effort. Quite an interesting position to analyse, and absolutely horrible to verify by hand :).


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