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Problem Display

PID: 250483 (8/4p3/1P1pP3/p1kP4/Pp4P1/1P6/4K3/4BQ2 w - - 0 1)

Ovchinnikov, Y

Uralski Problemist, 2009

8/4p3/1P1pP3/p1kP4/Pp4P1/1P6/4K3/4BQ2

#3

9 + 5

SOLUTION

SOUND
Sets
- 1...Kd4
  - 2.Qf5
    - 2...Kc5
      - 3.Bf2#
Tries
- 1.Kd3?
  - 1...Kxd5
    - 2.Qf3+
      - 2...Kc5
        3.Bf2#
      - 2...Ke5
        3.Qf5#
      - 2...Kxe6
        3.Qf5#
  - 1...Kxb6!
- 1.Ke3?
  - threat
    - 2.Qb5#
  - 1...Kxd5
    - 2.Qb5+
      - 2...Kxe6
        3.Qf5#
  - 1...Kxb6!
- 1.Qf3?
  - threat
    - 2.Bf2#
  - 1...Kd4
    - 2.Bf2+
      - 2...Ke5
        3.Qf5#
    - 2.Bg3
      - 2...Kc5
        3.Bf2#
    - 2.Qf5
      - 2...Kc5
        3.Bf2#
  - 1...Kxb6!
- 1.Qf5?
  - threat
    - 2.Bf2#
  - 1...Kd4
    - 2.Kd1
      - 2...Ke3
        3.Bf2#
      - 2...Kc5
        3.Bf2#
    - 2.Kd2
      - 2...Kc5
        3.Bf2#
    - 2.Kf3
      - 2...Kc5
        3.Bf2#
    - 2.Bd2
      - 2...Kc5
        3.Be3#
    - 2.g5
      - 2...Kc5
        3.Bf2#
    - 2.b7
      - 2...Kc5
        3.Bf2#
  - 1...Kxb6!
Keys
- 1.Qf8!
  - 1...Kd4
    - 2.Qf5
      - 2...Kc5
        3.Bf2#
  - 1...Kxd5
    - 2.Bf2
      - 2...Ke4
        3.Qf5#
      - 2...Ke5
        3.Qf5#
      - 2...Kc6
        3.Qa8#
      - 2...Kxe6
        3.Qf5#
  - 1...Kxb6
    - 2.Qc8
      - 2...Ka7
        3.Bf2#

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