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Problem Display

PID: 28389 (2K5/2P2p2/1pR5/3kp1p1/Pp2n3/4BB2/4p3/5R2 w - - 0 1)

Sikdar, Niharendu

British Chess Magazine, 1979

2K5/2P2p2/1pR5/3kp1p1/Pp2n3/4BB2/4p3/5R2

#3

7 + 8

SOLUTION

SOUND
Sets
- 1...b5
  - 2.Kd7
    - threat
      - 3.Rc5#
  - 2.Rfc1
    - threat
      - 3.R1c5#
Keys
- 1.Kd8!
  - threat
    - 2.c8Q
      - threat
        3.Qd7#
    - 2.c8S
      - threat
        3.Se7#
      - 2...Kxc6
        3.Bxe4#
  - 1...Kxc6
    - 2.Bxe4+
      - 2...Kd6
        3.Rf6#
  - 1...exf1Q
    - 2.c8S
      - threat
        3.Se7#
      - 2...Kxc6
        3.Bxe4#
  - 1...exf1S
    - 2.c8Q
      - threat
        3.Qd7#
  - 1...exf1B
    - 2.c8S
      - threat
        3.Se7#
      - 2...Kxc6
        3.Bxe4#
  - 1...exf1R
    - 2.c8S
      - threat
        3.Se7#
      - 2...Kxc6
        3.Bxe4#
  - 1...e1Q
    - 2.c8Q
      - threat
        3.Qd7#
  - 1...e1S
    - 2.c8S
      - threat
        3.Se7#
      - 2...Kxc6
        3.Bxe4#
  - 1...e1R
    - 2.c8Q
      - threat
        3.Qd7#
  - 1...g4
    - 2.c8S
      - threat
        3.Se7#
      - 2...Kxc6
        3.Bxe4#
  - 1...f5
    - 2.c8Q
      - threat
        3.Qe6#
        3.Qd7#
  - 1...f6
    - 2.c8Q
      - threat
        3.Qe6#
        3.Qd7#
    - 2.c8S
      - threat
        3.Se7#
      - 2...Kxc6
        3.Bxe4#

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