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Problem Display

PID: 131930 (r3k3/2p2pK1/n1p2P2/2Pp4/1R2p3/1R5B/1p4P1/8 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Schackvarlden, 1938

r3k3/2p2pK1/n1p2P2/2Pp4/1R2p3/1R5B/1p4P1/8

#3

7 + 9

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Ra7
  - 2.Rb8+
    - 2...Sxb8
      - 3.Rxb8#
- 1...Rb8
  - 2.Rxb8+
    - 2...Sxb8
      - 3.Rxb8#
- 1...Sxc5
  - 2.Rb8+
    - 2...Rxb8
      - 3.Rxb8#
- 1...Sb8
  - 2.Rxb8+
    - 2...Rxb8
      - 3.Rxb8#
- 1...e3
  - 2.Rh4
    - threat
      - 3.Rh8#
    - 2...Kd8
      - 3.Rh8#
Tries
- 1.Rxe4+?
  - 1...Kd8
    - 2.Rh4
      - threat
        3.Rh8#
      - 2...Ke8
        3.Rh8#
  - 1...dxe4!
Keys
- 1.Kh8!
  - threat
    - 2.Rg3
      - threat
        3.Rg8#
      - 2...Kd8
        3.Rg8#
      - 2...Kf8
        3.Rg8#
  - 1...Kd8
    - 2.Rg3
      - threat
        3.Rg8#
      - 2...Ke8
        3.Rg8#
  - 1...Kf8
    - 2.Rg3
      - threat
        3.Rg8#
      - 2...Ke8
        3.Rg8#
  - 1...Sxc5
    - 2.Rb8+
      - 2...Rxb8
        3.Rxb8#
  - 1...Rd8
    - 2.Rg3
      - threat
        3.Rg8#
      - 2...Kf8
        3.Rg8#
  - 1...Sb8
    - 2.Rxb8+
      - 2...Rxb8
        3.Rxb8#
  - 1...e3
    - 2.Rg4
      - threat
        3.Rg8#
      - 2...Kd7+
        3.Rg8#
      - 2...Kd8
        3.Rg8#
      - 2...Kf8
        3.Rg8#

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