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Problem Display

PID: 4436 (5K2/6PP/5k2/5p2/5B2/8/8/8 w - - 0 1)

Blood, Charles H

Dubuque Chess Journal, 1873

5K2/6PP/5k2/5p2/5B2/8/8/8

#3

4 + 2

1829	The Theory of Pawn Promotion	1912
14986	White-Hume Collection	2020

SOLUTION

SOUND
Sets
- 1...Kg6
  - 2.g8Q+
    - 2...Kh5
      - 3.Qg5#
      - 3.h8Q#
      - 3.h8R#
    - 2...Kf6
      - 3.Qf7#
      - 3.h8Q#
      - 3.h8B#
  - 2.h8Q
    - 2...Kf6
      - 3.Qh6#
      - 3.g8Q#
  - 2.h8R
    - 2...Kf6
      - 3.Rh6#
Tries
- 1.Ke8?
  - threat
    - 2.h8Q
      - threat
        3.Qh6#
        3.g8Q#
      - 2...Ke6
        3.g8Q#
        3.g8B#
      - 2...Kg6
        3.Qh6#
        3.g8Q#
        3.g8R#
  - 1...Ke6
    - 2.g8Q+
      - 2...Kf6
        3.Qf7#
        3.h8Q#
        3.h8B#
  - 1...Kg6
    - 2.g8Q+
      - 2...Kh5
        3.Qg5#
        3.h8Q#
        3.h8R#
      - 2...Kf6
        3.Qf7#
        3.h8Q#
        3.h8B#
    - 2.h8Q
      - 2...Kf6
        3.Qh6#
        3.g8Q#
  - 1...Kxg7!
- 1.h8Q?
  - threat
    - 2.Qh6#
    - 2.g8Q#
  - 1...Kg6
    - 2.Qh6#
    - 2.g8Q#
    - 2.g8R#
  - 1...Ke6!
- 1.h8B?
  - threat
    - 2.g8Q#
  - 1...Kg6
    - 2.g8Q+
      - 2...Kh5
        3.Qg5#
  - 1...Ke6!
- 1.h8R?
  - threat
    - 2.Rh6#
  - 1...Kg6
    - 2.Rh6#
  - 1...Ke6!
Keys
- 1.g8B!
  - 1...Kg6
    - 2.h8R
      - 2...Kf6
        3.Rh6#

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