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Problem Display

PID: 235740 (2r2n2/2p1p3/1pP1kp2/1P2P2B/6PQ/1pNN4/8/4K2R w K - 0 1)

Sigurov, Aleksandr Ilich

Zadachi i Etyudi, 2002

2r2n2/2p1p3/1pP1kp2/1P2P2B/6PQ/1pNN4/8/4K2R

#3

10 + 8

SOLUTION

SOUND
Sets
- 1...f5
  - 2.Qg5
    - threat
      - 3.Qxf5#
      - 3.Qg8#
      - 3.gxf5#
    - 2...fxg4
      - 3.Sf4#
      - 3.Qxg4#
  - 2.gxf5+
    - 2...Kxf5
      - 3.Qg4#
Tries
- 1.Rf1?
  - threat
    - 2.Rxf6+
      - 2...exf6
        3.Qxf6#
  - 1...fxe5
    - 2.Bf7+
      - 2...Kd6
        3.Se4#
  - 1...Sd7
    - 2.Qh1
      - threat
        3.Qd5#
  - 1...Sh7!
- 1.Qf2?
  - threat
    - 2.Qf5#
  - 1...fxe5
    - 2.Bf7+
      - 2...Kd6
        3.Se4#
    - 2.Qf5+
      - 2...Kd6
        3.Qxe5#
    - 2.Qf7+
      - 2...Kd6
        3.Se4#
        3.Qd5#
  - 1...Sg6!
- 1.Qg5?
  - threat
    - 2.Sf4#
    - 2.Qf5#
    - 2.Qg8#
  - 1...Sg6
    - 2.Qxg6
      - threat
        3.Qf5#
        3.Qf7#
  - 1...fxg5!
- 1.g5?
  - threat
    - 2.Qc4+
      - 2...Kf5
        3.Qg4#
    - 2.Qg4+
      - 2...f5
        3.Qc4#
  - 1...fxe5
    - 2.Qc4+
      - 2...Kf5
        3.Qg4#
      - 2...Kd6
        3.Se4#
        3.Qd5#
  - 1...Sg6
    - 2.Qc4+
      - 2...Kf5
        3.Qg4#
  - 1...Rd8!
Keys
- 1.0-0!
  - threat
    - 2.Rxf6+
      - 2...exf6
        3.Qxf6#
  - 1...fxe5
    - 2.Bf7+
      - 2...Kd6
        3.Se4#
  - 1...Sd7
    - 2.Qh1
      - threat
        3.Qd5#
  - 1...Sh7
    - 2.Qe1
      - threat
        3.Sf4#
      - 2...fxe5
        3.Qxe5#

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