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Problem Display

PID: 209047 (3K4/3N1p2/3p4/3k2pP/3p4/3Np2P/4P3/6Q1 w - - 0 1)

Anonymous

BCA Ty., 1873

3K4/3N1p2/3p4/3k2pP/3p4/3Np2P/4P3/6Q1

#3

7 + 6

15239	Valois Notebooks	2020

SOLUTION

SOUND
Sets
- 1...Ke4
  - 2.Qh1+
    - 2...Kf5
      - 3.Qd5#
  - 2.Qg2+
    - 2...Kf5
      - 3.Qd5#
      - 3.Qg4#
  - 2.Qxg5
    - threat
      - 3.Sf6#
    - 2...f6
      - 3.Sxf6#
Tries
- 1.Sb4+?
  - 1...Ke6
    - 2.Qg2
      - threat
        3.Qe4#
        3.Qd5#
      - 2...Kf5
        3.Qg4#
      - 2...d5
        3.Qxd5#
    - 2.Qxg5
      - threat
        3.Sf8#
        3.Qf6#
        3.Qd5#
  - 1...Kc4!
- 1.Sb6+?
  - 1...Ke6
    - 2.Qxg5
      - threat
        3.Sf4#
      - 2...d5
        3.Qe5#
      - 2...f5
        3.Qe7#
        3.Qg6#
      - 2...f6
        3.Qd5#
  - 1...Kc6!
- 1.Qh1+?
  - 1...Ke6
    - 2.Qe4#
  - 1...Kc4!
- 1.Qg2+?
  - 1...Ke6
    - 2.Qe4#
  - 1...Kc4!
Keys
- 1.Qb1!
  - 1...Kc4
    - 2.Sb6+
      - 2...Kc3
        3.Qb2#
  - 1...Ke4
    - 2.Qh1+
      - 2...Kf5
        3.Qd5#
  - 1...Kc6
    - 2.Qb3
      - threat
        3.Sb8#
      - 2...d5
        3.Qb6#
  - 1...Ke6
    - 2.Sf4+
      - 2...gxf4
        3.Qe4#
  - 1...g4
    - 2.Qb5+
      - 2...Ke4
        3.Sf6#
      - 2...Ke6
        3.Sf4#
  - 1...f5
    - 2.Qb3+
      - 2...Ke4
        3.Sf6#
        3.Qe6#
      - 2...Kc6
        3.Sb8#
  - 1...f6
    - 2.Qb3+
      - 2...Ke4
        3.Qe6#
      - 2...Kc6
        3.Sb8#

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