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Problem Display

PID: 221651 (2r4b/8/N6Q/3k4/5RN1/2P5/1P1p2K1/8 w - - 0 1)

Felber, Stefan

Die Schwalbe, 2019

2r4b/8/N6Q/3k4/5RN1/2P5/1P1p2K1/8

#3

7 + 4

SOLUTION

SOUND
Sets
- 1...Rxc3
  - 2.Sb4+
    - 2...Kc5
      - 3.Qc6#
- 1...Rc5
  - 2.Sb4#
- 1...Rc6
  - 2.Sb4+
    - 2...Kc5
      - 3.Qxc6#
- 1...Rc7
  - 2.Sxc7+
    - 2...Kc5
      - 3.b4#
- 1...Ra8
  - 2.c4#
- 1...Rb8
  - 2.c4#
- 1...Rd8
  - 2.c4#
- 1...Re8
  - 2.c4#
- 1...Rf8
  - 2.c4#
- 1...Rg8
  - 2.c4#
- 1...Bxc3
  - 2.Se3+
    - 2...Ke5
      - 3.Qf6#
- 1...Bd4
  - 2.Rxd4#
- 1...Be5
  - 2.Se3#
- 1...Bf6
  - 2.Qxf6
    - threat
      - 3.Se3#
      - 3.Rd4#
Tries
- 1.Sc7+?
  - 1...Kc5
    - 2.b4#
  - 1...Rxc7!
- 1.Qf6?
  - threat
    - 2.Se3#
    - 2.Rd4#
  - 1...Rxc3
    - 2.Rd4#
  - 1...d1Q
    - 2.Se3#
  - 1...d1S
    - 2.Rd4#
  - 1...d1R
    - 2.Se3#
  - 1...Rc4
    - 2.Se3#
  - 1...Re8
    - 2.Rd4#
    - 2.c4#
  - 1...Rg8
    - 2.Rd4#
    - 2.c4#
  - 1...Bxf6!
Keys
- 1.b3!
  - threat
    - 2.c4+
      - 2...Rxc4
        3.bxc4#
  - 1...Rxc3
    - 2.Sb4+
      - 2...Kc5
        3.Qc6#
  - 1...Bxc3
    - 2.Se3+
      - 2...Ke5
        3.Qf6#
  - 1...Bf6
    - 2.Qxf6
      - threat
        3.Se3#
        3.Rd4#
  - 1...Rc6
    - 2.Sb4+
      - 2...Kc5
        3.Qxc6#
    - 2.c4+
      - 2...Rxc4
        3.bxc4#
  - 1...Rc7
    - 2.Sxc7+
      - 2...Kc5
        3.Rc4#
        3.b4#
    - 2.c4+
      - 2...Rxc4
        3.bxc4#

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