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      Home  >  Chess Improvement • Chess Puzzles  >  Extreme calculation required

      Extreme calculation required

      Chess tactic, Puzzle Solving


      White to move. Is this a win, loss, or draw for White? No computer analysis please.

      6rk/p5pn/6Q1/3p4/5NP1/7P/P4PK1/3q4 w – – 0 3

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      16 Comments

      1. Anonymous Reply
        January 9, 2010 at 12:48 am

        Greetings,

        1.Qe4 (or else 1…Re8 and wins)

        1…Rf8 [1…g6 2. Qe5+ Rg7 3. Ne6 mates]

        2. Ng6+ Kg8
        3. Qe6+ Rf7
        4. Ne7+ (4.Ne5 Ng5) Kf8
        5. Ng6+ Draw

        regards
        King.

      2. Anonymous Reply
        January 9, 2010 at 12:48 am

        1.Qe4 looks spectacular. I see only three ways for black to avoid checkmate; 1.push pawn, 2.move knight, or 3.move rook.

        1…g5
        2.Qe5+ Rg7
        3.Ng6+ Kg8
        4.Qe8+ Nf8
        interesting for white

        1…Nf6
        2.Ng6+ Kh7
        3.Nf8++ Kh8
        4.Qh7+ NxQ
        5.Ng6#

        1…Rf8
        2.Ng6+ Kg8
        3.Qe6+ Rf7
        4.Ne7+ I did not see anything but perpetual check here.

        I would say it’s a draw

      3. Anonymous Reply
        January 9, 2010 at 1:50 am

        QF7 then Ckeck with N g6

      4. Anonymous Reply
        January 9, 2010 at 2:43 am

        Qb1 1-0

      5. Anonymous Reply
        January 9, 2010 at 2:54 am

        Qb1 My grand mistake

        Qh5

      6. Anonymous Reply
        January 9, 2010 at 2:58 am

        Qb1?? Qxb1

        Qf5 intending Ng6 looks good…
        h

      7. Don Reply
        January 9, 2010 at 3:19 am

        Qf7 would result in a queen trade after Qf3, Kxf3, Ng5. Of course, white doesn’t have to capture the queen, but running away doesn’t help either.

      8. Anonymous Reply
        January 9, 2010 at 3:35 am

        1.Qe4 looks good. E.g. 1-Ng5 2.Ng6+ Kh7 3.Nf8+ Kh8 4.Qh7+ Nh7 5.Qh8++.
        But after 1-Rf8 or 1.-g6 I don’t see better than perpetual.

      9. Anonymous Reply
        January 9, 2010 at 3:59 am

        1.Qe4 looks spectacular. I see only three ways for black to avoid checkmate; 1.push pawn, 2.move knight, or 3.move rook.

        1…g5
        2.Qe5+ Rg7
        3.Ng6+ Kg8
        4.Qe8+ Nf8
        interesting for white

        1…Nf6
        2.Ng6+ Kh7
        3.Nf8++ Kh8
        4.Qh7+ NxQ
        5.Ng6#

        1…Rf8
        2.Ng6+ Kg8
        3.Qe6+ Rf7
        4.Ne7+ I did not see anything but perpetual check here.

        I would say it’s a draw

      10. Anonymous Reply
        January 9, 2010 at 4:00 am

        1.Qe4 looks spectacular. I see only three ways for black to avoid checkmate; 1.push pawn, 2.move knight, or 3.move rook.

        1…g5
        2.Qe5+ Rg7
        3.Ng6+ Kg8
        4.Qe8+ Nf8
        interesting for white

        1…Nf6
        2.Ng6+ Kh7
        3.Nf8++ Kh8
        4.Qh7+ NxQ
        5.Ng6#

        1…Rf8
        2.Ng6+ Kg8
        3.Qe6+ Rf7
        4.Ne7+ I did not see anything but perpetual check here.

        I would say it’s a draw

      11. Anonymous Reply
        January 9, 2010 at 4:35 am

        I think that after Qf3, Kg1, the black position is very dificult. Probably Qe4, Ng6 and Qxg6

      12. Henry Reply
        January 9, 2010 at 5:18 am

        Q-B7 should win. If Q-B6+ then K-N1, Q-Q8+, K-R2. If after Q-B7, N-KB3 then N-N6+, K-R2, I believe P-N5 wins. Sorry about the descriptive notation but I hate the other one.

      13. Yancey Ward Reply
        January 9, 2010 at 5:38 am

        1. Qh5 Rd8
        2. Ng6 Kg8
        3. Ne7 Kh8 seems to be a draw to my eye.

        1. Qh5 g6
        2. Ng6 Kg7 might be better for black, but

        2. Qe5 Rg7
        3. Ng6 Kg8
        4. Qe8 Nf8
        5. Qf8 Kh7
        6. Ne7 Qd3 looks like a draw to me as well.

        I am having a hard time seeing anything more than a draw for white here, but a draw down a rook isn’t to be dismissed most of the time.

      14. chelo Reply
        January 9, 2010 at 2:36 pm

        Can´t find it.

        1. Qf7 is met by 1. … g5 !

        Another try is 1. Qf5. If 1… g5 (or 1…g6 for that matter) 2. Qe5+ Rg7 3. Ne6 is curtains. 1… Nf6? loses to 2. Ng6+ Kh7 3. Nf8+ Kh8 4. Qh7+! and 5. Ng6 mate.

        However, 1… Re8! appears to hold. If then 2. Qf7 Qf3+! and black wins.

        1. Qe4! is a nice attempt. However, 1. …Nf8! keeps the attack at bay. If 2. Qe5 Qc2 holds. I suppose 2. Qf5 with the threat 3. Qh5 and 4. Ng6 ++ is the best try.

        The only defense is to move the g pawn. If 2. … g6 3. Qf6+ Kh7 (3… Rg7 4. Qf8+ Kh7 5. Ne6 +-) 4. Qh4+ Kg7 5. Qe7+ Kh8 6. Qh4+ is a draw.

        A better try for black might be 2. … g5 3. Qe5+ Kh7 (3. … Rh7? 4. Nh5) and 4. Nd5 or 4. Qf5+ will leave white with some drawing chances.

      15. Anonymous Reply
        January 9, 2010 at 7:02 pm

        How about Nd3?

      16. chelo Reply
        January 10, 2010 at 6:59 pm

        I forgot to mention that 1. Qh5 runs into 1. … g5. So what is the solution? Or is this diagram going to be forgotten?

      Leave a Reply to Don Cancel reply

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