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Problem Display

PID: 221013 (K7/3p1N2/2pPk1P1/3p2P1/2b3P1/R1p1P1R1/P3pPB1/b7 w - - 0 1)

Ahlheim, Karl-Heinz

Deutsche Schachzeitung, 1989

K7/3p1N2/2pPk1P1/3p2P1/2b3P1/R1p1P1R1/P3pPB1/b7

#4

12 + 8

6490	yacpdb	2020

SOLUTION

SOUND
Keys
- 1.Rb3!
  - threat
    - 2.Rb8
      - threat
        3.Re8#
  - 1...Bxb3
    - 2.Rh3
      - threat
        3.Rh8
        threat
        4.Re8#
      - 2...Bc2
        3.Rf3
        threat
        4.Rf6#
        3...Bf5
        4.gxf5#
      - 2...c2
        3.f4
        threat
        4.f5#
  - 1...Bd3
    - 2.Rf3
      - threat
        3.Rf6#
      - 2...c2
        3.Rb8
        threat
        4.Re8#
        3...d4
        4.Rf6#
        3...Bf6
        4.Rxf6#
  - 1...Bb5
    - 2.Rxb5
      - threat
        3.Be4
        threat
        4.Bf5#
        3...dxe4
        4.Re5#
        3.Rb8
        threat
        4.Re8#
        3.f4
        threat
        4.f5#
  - 1...Ba6
    - 2.Rb8
      - threat
        3.Re8#
      - 2...Bb7+
        3.Kxb7
        threat
        4.Re8#
      - 2...Bc8
        3.Rxc8
        threat
        4.Re8#
  - 1...c2
    - 2.Rb8
      - threat
        3.Re8#
      - 2...Bf6
        3.Re8+
        3...Be7
        4.Rxe7#
    - 2.f4
      - threat
        3.f5#
      - 2...Bd3
        3.Rxd3
        threat
        4.f5#

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