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Weekly Endgame Study (145)

22 November 2009, 12.22 CET | By Yochanan Afek  | Filed under: Weekly endgame study | Tags:

Weekly Endgame StudyEvery week we present you an endgame study selected by IM Yochanan Afek: player, trainer, endgame study composer and writer. A week later the solution is published. Good luck solving!

V. Kozirev
2001

White to play and win

Next week the solution.

Solution last week

A. Manveljan
2001

Game viewer by ChessTempo

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8 Responses to “Weekly Endgame Study (145)”

  1. sergio on November 23rd, 2009 1:21 pm

    Difficult thing is that Qd5(+) is annoying in almost all the lines. So my guess is you have to start with Kb8 (and after another king move the black king has room to move). Or maybe promote d8/N to keep control of the b7 square. It is hard to calculate everything with all those queen checks black has.

  2. sergio on November 23rd, 2009 1:26 pm

    Maybe a stupid question, but why is the line given with Kc2 better for black? I don’t see any way to stop the promotion after Bd3+. A king move or rook move, mate isn’t possible anymore.

  3. Tim on November 23rd, 2009 3:29 pm

    @sergio,

    if 1. b6+ Kd1! 2. b7 Kc2 3. bd3+ then 3… Rxd3 4. b8=Q be6+ 5. Ka1 Ra3++

  4. RRB on November 23rd, 2009 6:32 pm

    I think this is one another relaxation from afek to the solvers-
    very easy puzzle this one is..

    1.g8(B) Qb5

    (only move – as now white is threatening 2.Bc4# for eg.
    1…Qe2 is the only alternative – 2.Be4 Qb5 3.Bf3! +- the queen can’t move out of the diagonal as Be2# is threatened.. and white’s going to queen)

    2. d8(N) +- Qe2 3.e8(Q) Qe8 (3…Qg2+ 4.Qf3+) 4. Bc4+

    1-0

  5. sergio on November 24th, 2009 1:11 pm

    I knew i missed something obvious Tim, otherwise the move i suggested would already been suggested. But missing a mate in 2 is a bit stupid.

    I found it out also myself thinking of the position in the bus home.

    Ah i see i wasn’t far off with promotion to knight. Missed the promotion to Bishop on g8 though:(

    I always like problems with under promotion.

  6. André Engels on November 25th, 2009 9:40 am

    Doesn’t the fact that 1… Kd1 wins for black invalidate the study? Should it be started at the second move?

  7. Peter Doggers on November 25th, 2009 9:42 am

    Well, we already explained last week, André.

  8. André Engels on November 25th, 2009 9:42 am

    Yes, I now see it too *blush*

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