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Problem Display

PID: 266390 (3QK3/1PBPP3/1pq1k1p1/5p2/2pRPPN1/4P2P/8/8 w - - 0 1)

Makaronets, Leonid

Schweizerische Schachzeitung, 2019

3QK3/1PBPP3/1pq1k1p1/5p2/2pRPPN1/4P2P/8/8

#3

12 + 6

SOLUTION

SOUND
Sets
- 1...Qa4
  - 2.Rd6#
- 1...Qxe4
  - 2.Rd6#
- 1...Qb5
  - 2.Rd6#
- 1...Qd5
  - 2.exd5#
- 1...Qxb7
  - 2.Rd6#
- 1...Qxd7+
  - 2.Qxd7#
- 1...Qd6
  - 2.Rxd6#
- 1...Qxc7
  - 2.Qxc7
    - threat
      - 3.Rd6#
      - 3.Qe5#
      - 3.Qxb6#
      - 3.Qd6#
      - 3.Qxc4#
      - 3.Qc6#
      - 3.d8S#
Tries
- 1.Kf8?
  - threat
    - 2.e8Q#
    - 2.e8R#
  - 1...fxe4
    - 2.e8Q+
      - 2...Kf5
        3.Sh6#
        3.Qg5#
        3.Qe5#
    - 2.e8R+
      - 2...Kf5
        3.Sh6#
        3.Re5#
        3.Qg5#
  - 1...Qc5!
Keys
- 1.Qc8!
  - threat
    - 2.Rd6+
      - 2...Qxd6
        3.d8S#
  - 1...fxe4
    - 2.Rxe4+
      - 2...Kd5
        3.Re5#
      - 2...Kf5
        3.Re5#
      - 2...Qxe4
        3.d8Q#
        3.d8R#
  - 1...fxg4
    - 2.Be5
      - threat
        3.Qxc6#
      - 2...Qxd7+
        3.Qxd7#
      - 2...Qxc8+
        3.dxc8Q#
        3.dxc8B#
      - 2...Qxe4
        3.d8Q#
        3.d8S#
        3.d8B#
        3.d8R#
      - 2...Qxb7
        3.Rd6#
        3.d8S#
      - 2...Qa4
        3.Rd6#
      - 2...Qb5
        3.Rd6#
      - 2...Qd5
        3.d8S#
      - 2...Qc5
        3.d8S#
      - 2...Qd6
        3.Rxd6#
        3.d8S#
      - 2...Qc7
        3.d8S#

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