1. Joined
    30 Oct '04
    Moves
    7797
    06 Apr '05 12:441 edit
    A beautiful and rather difficult study by L.Kubbel:
    White to play and win.

    Edited: Fen
  2. Standard memberPBE6
    Bananarama
    False berry
    Joined
    14 Feb '04
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    28719
    06 Apr '05 15:54
    Kc6!
  3. Joined
    12 Mar '03
    Moves
    37225
    06 Apr '05 16:08
    Originally posted by PBE6
    Kc6!
    You mean Nc6, I assume. And then ... ?
  4. Standard memberPBE6
    Bananarama
    False berry
    Joined
    14 Feb '04
    Moves
    28719
    06 Apr '05 17:07
    Originally posted by Mephisto2
    You mean Nc6, I assume. And then ... ?
    Oops, sorry, that's right. Nc6. And then...

    1. Nc6! Kxc6 (if the king doesn't take the knight, both pawns are lost anyway through some combination of knight forks, x-rays and straight captures)
    2. Bf6 Kd5
    3. d3! a2 (if the king moves, he either gives up the d-pawn or gives up the a-pawn by x-ray)
    4. c4! dxc3 (enpassant, if the king moves, well, you know what happens)
    5. Bxc3 (covering the promotion square a1)

    After that, the black king doesn't have much to do except get in the way of white's d-pawn, which will eventually promote.

  5. Standard memberark13
    Enola Straight
    mouse mouse mouse
    Joined
    16 Jan '05
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    12804
    06 Apr '05 20:12
    Doesn't Be6+ also work. If king takes then Nb5+ and clean up the pawns. I didn't look past that but I assume it's winning.
  6. Standard memberPBE6
    Bananarama
    False berry
    Joined
    14 Feb '04
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    28719
    06 Apr '05 21:00
    Originally posted by ark13
    Doesn't Be6+ also work. If king takes then Nb5+ and clean up the pawns. I didn't look past that but I assume it's winning.
    We must have the same disease. e6 is a white square, so the bishop can't go there.
  7. Joined
    21 Mar '05
    Moves
    2342
    06 Apr '05 23:33
    Originally posted by PBE6
    Oops, sorry, that's right. Nc6. And then...

    1. Nc6! Kxc6 (if the king doesn't take the knight, both pawns are lost anyway through some combination of knight forks, x-rays and straight captures)
    2. Bf6 Kd5
    3. d3! a2 (if the king moves, he either gives up the d-pawn or gives up the a-pawn by x-ray)
    4. c4! dxc3 (enpassant, if the king moves, well, you kn ...[text shortened]... 't have much to do except get in the way of white's d-pawn, which will eventually promote.

    "if the king moves, well, you know what happens"

    just to exlicit that
    if black plays
    4. ... Kc5 (instead of the en passant)
    5. Kb7!
    is necessary
    if black moves its King to avoid checkmate (Be7++),
    white will take the pawn on d4 & intercept the other
  8. Joined
    30 Oct '04
    Moves
    7797
    08 Apr '05 13:042 edits
    Indeed. Well done. If you want a harder problem try this:
    H.Kasparyan
    White to play and win
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