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Problem Display

PID: 234315 (4kn1R/3ppp2/3P4/B4P2/1P6/3p1p2/3PPP2/4K3 w - - 0 1)

Pettersson, Karl-Gustav

Tidskrift for Schack, 1944

4kn1R/3ppp2/3P4/B4P2/1P6/3p1p2/3PPP2/4K3

#4

9 + 7

6490	yacpdb	2021

SOLUTION

SOUND
Keys
- 1.f6!
  - threat
    - 2.fxe7
      - threat
        3.Rxf8#
        3.exf8Q#
        3.exf8R#
  - 1...exd6
    - 2.Bc7
      - threat
        3.Bxd6
        threat
        4.Rxf8#
        3...Kd8
        4.Rxf8#
      - 2...dxe2
        3.Bxd6
        3...Kd8
        4.Rxf8#
      - 2...fxe2
        3.Bxd6
        3...Kd8
        4.Rxf8#
      - 2...d5
        3.Bd6
        threat
        4.Rxf8#
        3...Kd8
        4.Rxf8#
  - 1...exf6
    - 2.Bd8
      - threat
        3.Be7
        threat
        4.Rxf8#
      - 2...dxe2
        3.Be7
        3...f5
        4.Rxf8#
      - 2...fxe2
        3.Be7
        3...f5
        4.Rxf8#
  - 1...e5
    - 2.Bd8
      - threat
        3.Be7
        threat
        4.Rxf8#
        3.e4
        3...Kxd8
        4.Rxf8#
      - 2...dxe2
        3.Be7
        3...e4
        4.Rxf8#
      - 2...fxe2
        3.Be7
        3...e4
        4.Rxf8#
    - 2.e3
      - 2...e4
        3.Bd8
        3...Kxd8
        4.Rxf8#
  - 1...e6
    - 2.Bd8
      - threat
        3.Be7
        threat
        4.Rxf8#
      - 2...dxe2
        3.Be7
        3...e5
        4.Rxf8#
      - 2...fxe2
        3.Be7
        3...e5
        4.Rxf8#
    - 2.e4
      - 2...e5
        3.Bd8
        3...Kxd8
        4.Rxf8#

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