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Problem Display

PID: 70031 (8/1p3p2/1Q3p2/1PNknRP1/1b6/1Prp2R1/B1rPp1PK/8 w - - 0 1)

Makaronets, Leonid

Volchek, Viktor Fedorovich

The Problemist, 2006

8/1p3p2/1Q3p2/1PNknRP1/1b6/1Prp2R1/B1rPp1PK/8

#3

11 + 10

SOLUTION

SOUND
Sets
- 1...Kd4
  - 2.Qd6#
- 1...Rxb3
  - 2.Bxb3+
    - 2...Kd4
      - 3.Rf4#
      - 3.Qd6#
    - 2...Rc4
      - 3.Rxd3#
  - 2.Rxd3+
    - 2...Kc4
      - 3.Bxb3#
      - 3.Rf4#
- 1...Rc4
  - 2.bxc4+
    - 2...Kd4
      - 3.Rf4#
      - 3.Qd6#
    - 2...Rxc4
      - 3.Rxd3#
- 1...Bxc5
  - 2.Qxb7+
    - 2...Kd4
      - 3.Rf4#
    - 2...Kd6
      - 3.Rxf6#
    - 2...Ke6
      - 3.Rxf6#
- 1...fxg5
  - 2.Qd8+
    - 2...Kxc5
      - 3.Rxe5#
Tries
- 1.Qc6+?
  - 1...Kd4
    - 2.Rf4#
    - 2.Qd6#
  - 1...bxc6!
- 1.Qxb7+?
  - 1...Kxc5
    - 2.Qc6+
      - 2...Kd4
        3.Rf4#
  - 1...Kd6
    - 2.Se4+
      - 2...Ke6
        3.Rxf6#
  - 1...Kd4!
Keys
- 1.Rg4!
  - threat
    - 2.Rd4+
      - 2...Kxd4
        3.Qd6#
  - 1...Rxd2
    - 2.Sxb7
      - threat
        3.Rd4#
      - 2...Rc6
        3.Qxc6#
      - 2...Bd6
        3.Qxd6#
      - 2...Rc4
        3.bxc4#
      - 2...Rc5
        3.Qd6#
      - 2...Bc5
        3.Qc6#
  - 1...Rxb3
    - 2.Bxb3+
      - 2...Rc4
        3.Bxc4#
  - 1...Rxc5
    - 2.Qd8+
      - 2...Ke6
        3.Rxf6#
  - 1...Bxc5
    - 2.Qxb7+
      - 2...Kd6
        3.Rxf6#
      - 2...Ke6
        3.Rxf6#
  - 1...Rc4
    - 2.bxc4+
      - 2...Rxc4
        3.Bxc4#

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