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Problem Display

PID: 70015 (1B4BK/1P1p1PP1/8/8/2p1p1Np/3pP2R/Qr3R2/bb1r2kN w - - 0 1)

Pugachev, Sergey Timofeevich

1st Prize, Shakhmaty, 1971

1B4BK/1P1p1PP1/8/8/2p1p1Np/3pP2R/Qr3R2/bb1r2kN

#3

12 + 10

3753	FIDE Album (1971-1973)	1978

SOLUTION

SOUND
Sets
- 1...Rxf2
  - 2.Qxf2#
- 1...Rb3
  - 2.Rf1+
    - 2...Kxf1
      - 3.Qf2#
    - 2...Rxf1
      - 3.Qh2#
  - 2.Rg2+
    - 2...Kf1
      - 3.Qf2#
- 1...Rb4
  - 2.Rf1+
    - 2...Kxf1
      - 3.Qf2#
    - 2...Rxf1
      - 3.Qh2#
  - 2.Rg2+
    - 2...Kf1
      - 3.Qf2#
- 1...Rb5
  - 2.Rf1+
    - 2...Kxf1
      - 3.Qf2#
    - 2...Rxf1
      - 3.Qh2#
  - 2.Rg2+
    - 2...Kf1
      - 3.Qf2#
- 1...Rb6
  - 2.Rf1+
    - 2...Kxf1
      - 3.Qf2#
    - 2...Rxf1
      - 3.Qh2#
  - 2.Rg2+
    - 2...Kf1
      - 3.Qf2#
- 1...Rxb7
  - 2.Rf1+
    - 2...Kxf1
      - 3.Qf2#
    - 2...Rxf1
      - 3.Qh2#
  - 2.Rg2+
    - 2...Kf1
      - 3.Qf2#
Tries
- 1.Sg3?
  - threat
    - 2.Rh1#
  - 1...Rxf2
    - 2.Qxf2#
  - 1...hxg3!
- 1.Rg3+?
  - 1...Kxh1
    - 2.Rh2+
      - 2...Rxh2
        3.Qxh2#
  - 1...hxg3!
Keys
- 1.Bh7!
  - threat
    - 2.Bh2+
      - 2...Kxh1
        3.Bxe4#
  - 1...d2
    - 2.g8Q
      - threat
        3.Se5#
        3.Sf6#
        3.Sh6#
    - 2.g8R
      - threat
        3.Se5#
        3.Sf6#
        3.Sh6#
  - 1...d5
    - 2.Sf6
      - threat
        3.g8Q#
        3.g8R#
      - 2...Rxf2
        3.Qxf2#
  - 1...d6
    - 2.Se5
      - threat
        3.g8Q#
        3.g8R#
      - 2...Rxf2
        3.Qxf2#

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