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Problem Display

PID: 243259 (2b5/4K2p/8/Qn1p2k1/5R1R/4p2p/6PP/3q4 w - - 0 1)

Jonsson, Ernst Uno Fredrik

Tidskrift for Schack, 1980

2b5/4K2p/8/Qn1p2k1/5R1R/4p2p/6PP/3q4

#3

6 + 8

SOLUTION

SOUND
Tries
- 1.Qb6?
  - threat
    - 2.Qf6#
    - 2.Qh6#
  - 1...Be6
    - 2.Qxe6
      - threat
        3.Qf5#
        3.Qg8#
        3.Qf6#
        3.Qh6#
  - 1...Sd6!
Keys
- 1.Qd8!
  - threat
    - 2.Kf7#
    - 2.Qg8#
  - 1...Qg4
    - 2.Qxd5+
      - 2...Kxf4
        3.g3#
      - 2...Kxh4
        3.g3#
      - 2...Kg6
        3.Qg8#
      - 2...Qf5
        3.Rfg4#
      - 2...Bf5
        3.Rfxg4#
  - 1...Qh5
    - 2.Kf8+
      - 2...Kg6
        3.Qf6#
      - 2...Kh6
        3.Qf6#
  - 1...Bg4
    - 2.Qf8
      - threat
        3.Qh6#
        3.Qf6#
      - 2...Kxh4
        3.Qh6#
      - 2...Kg6
        3.Qh6#
        3.Qf6#
        3.Qg8#
  - 1...h5
    - 2.Qg8+
      - 2...Kh6
        3.Rf6#
  - 1...Qa1
    - 2.Kf7+
      - 2...Qf6+
        3.Qxf6#
    - 2.Qg8+
      - 2...Qg7+
        3.Qxg7#
  - 1...Qd4
    - 2.Kf7+
      - 2...Qf6+
        3.Qxf6#
    - 2.Qg8+
      - 2...Qg7+
        3.Qxg7#
  - 1...Be6
    - 2.Kxe6+
      - 2...Kg6
        3.Qf6#
        3.Qg8#
    - 2.Ke8+
      - 2...Kg6
        3.Qf6#
    - 2.Kf8+
      - 2...Kg6
        3.Qf6#
    - 2.Qf8
      - threat
        3.Qh6#
        3.Qg7#
        3.Qf6#
      - 2...Kg6
        3.Qh6#
        3.Qf6#

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