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Problem Display

PID: 268864 (3K4/2pQ1pN1/5pR1/2p2p2/2pb3k/4P3/5PP1/3r1b1q w - - 0 1)

Burda, Josef

Troll, 2022

(First published on Wed Sep 28 2022)

3K4/2pQ1pN1/5pR1/2p2p2/2pb3k/4P3/5PP1/3r1b1q

#3

7 + 11

SOLUTION

SOUND
Sets
- 1...Rc1
  - 2.Qxf5
    - threat
      - 3.Rg4#
      - 3.Rh6#
      - 3.Qe4#
      - 3.Qg4#
      - 3.Qf4#
      - 3.Qh5#
      - 3.g3#
- 1...Re1
  - 2.Qxf5
    - threat
      - 3.Rg4#
      - 3.Rh6#
      - 3.Qe4#
      - 3.Qg4#
      - 3.Qf4#
      - 3.Qh5#
      - 3.g3#
- 1...f4
  - 2.Rg4#
  - 2.Qg4#
Tries
- 1.Rg4+?
  - 1...Kxg4
    - 2.Qxf5+
      - 2...Kh4
        3.Qf4#
        3.Qh5#
        3.g3#
  - 1...fxg4!
- 1.Rh6+?
  - 1...Kg4
    - 2.Qxf5#
  - 1...Kg5!
Keys
- 1.Rg3!
  - threat
    - 2.Sxf5+
      - 2...Kh5
        3.Qxf7#
  - 1...Bxe3
    - 2.Qxd1
      - threat
        3.Sxf5#
        3.Qh5#
      - 2...Be2
        3.Qxh1#
  - 1...Qh3
    - 2.Rxh3+
      - 2...Kg4
        3.Qxf5#
      - 2...Kg5
        3.Qxf5#
  - 1...Bd3
    - 2.Qxf7
      - threat
        3.Qh5#
      - 2...Be2
        3.Sxf5#
  - 1...Ba1
    - 2.Qxd1
      - threat
        3.Sxf5#
        3.Qh5#
      - 2...Be2
        3.Qxh1#
  - 1...Bb2
    - 2.Qxd1
      - threat
        3.Sxf5#
        3.Qh5#
      - 2...Be2
        3.Qxh1#
  - 1...Bc3
    - 2.Qxd1
      - threat
        3.Sxf5#
        3.Qh5#
      - 2...Be2
        3.Qxh1#
  - 1...Be5
    - 2.Qxd1
      - threat
        3.Sxf5#
        3.Qh5#
      - 2...Be2
        3.Qxh1#

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