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Problem Display

PID: 276676 (4K3/8/4p3/4BR2/2B1kpP1/pp1p1r1p/3Qpn1n/4N3 w - - 0 1)

Gorbatenko, Yuri Grigorevich

Pankratiev, Aleksandr Nikolaevich

Phenix, 2023

4K3/8/4p3/4BR2/2B1kpP1/pp1p1r1p/3Qpn1n/4N3

#3

7 + 11

SOLUTION

SOUND
Sets
- 1...Re3
  - 2.Qc3
    - threat
      - 3.Rxf4#
      - 3.Qd4#
- 1...Rg3
  - 2.Qxf4#
Tries
- 1.Sxf3?
  - threat
    - 2.Sg5#
    - 2.Rxf4#
    - 2.Qxf4#
  - 1...Sfxg4
    - 2.Rxf4#
    - 2.Qxf4#
    - 2.Qxd3#
  - 1...Sxf3
    - 2.Qxf4#
  - 1...Shxg4
    - 2.Rxf4#
    - 2.Qxf4#
  - 1...exf5
    - 2.Qxf4#
  - 1...Kxf3!
- 1.Rxf4+?
  - 1...Rxf4
    - 2.Qxf4#
  - 1...Kxe5!
- 1.Qc3?
  - threat
    - 2.Qd4#
  - 1...Ke3
    - 2.Bd4+
      - 2...Ke4
        3.Re5#
  - 1...Sfxg4
    - 2.Bxd3+
      - 2...Ke3
        3.Bd4#
      - 2...Kd5
        3.Qc4#
      - 2...Rxd3
        3.Qxd3#
  - 1...Shxg4!
Keys
- 1.Kd7!
  - threat
    - 2.Kxe6
      - threat
        3.Bd5#
  - 1...Sfxg4
    - 2.Bxd3+
      - 2...Kd5
        3.Qa5#
      - 2...Rxd3+
        3.Qxd3#
  - 1...Shxg4
    - 2.Rxf4+
      - 2...Kxe5
        3.Sxf3#
      - 2...Rxf4
        3.Qxf4#
  - 1...exf5
    - 2.Ke6
      - threat
        3.Bd5#
  - 1...Re3
    - 2.Kxe6
      - threat
        3.Bd5#
        3.Rxf4#
    - 2.Qc3
      - threat
        3.Rxf4#
        3.Qd4#
  - 1...Sd1
    - 2.Bxd3+
      - 2...Kd5
        3.Qa5#
      - 2...Rxd3+
        3.Qxd3#
  - 1...Sf1
    - 2.Rxf4+
      - 2...Kxe5
        3.Sxf3#
      - 2...Rxf4
        3.Qxf4#

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