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Problem Display

PID: 172891 (2K5/2p5/3P4/2k5/4Q3/8/8/5B2 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2001

2K5/2p5/3P4/2k5/4Q3/8/8/5B2

#3

4 + 2

6490	yacpdb	2018

SOLUTION

SOUND
Sets
- 1...Kb6
  - 2.Qb4+
    - 2...Kc6
      - 3.Bg2#
    - 2...Ka7
      - 3.Qa5#
      - 3.Qb7#
      - 3.Qb8#
- 1...cxd6
  - 2.Qc4+
    - 2...Kb6
      - 3.Qc7#
Tries
- 1.Qc4+?
  - 1...Kb6
    - 2.Qxc7#
  - 1...Kxd6!
- 1.Qe5+?
  - 1...Kb6
    - 2.Qb5+
      - 2...Ka7
        3.Qa6#
        3.Qa5#
        3.Qb7#
        3.Qb8#
  - 1...Kc6
    - 2.d7
      - 2...Kb6
        3.Qxc7#
  - 1...Kb4!
- 1.dxc7?
  - 1...Kb6
    - 2.Qd5
      - 2...Ka7
        3.Qb7#
        3.Qa5#
    - 2.Qb4+
      - 2...Kc6
        3.Bg2#
      - 2...Ka7
        3.Qa5#
        3.Qb7#
        3.Qb8#
    - 2.Qc4
      - 2...Ka5
        3.Qb5#
      - 2...Ka7
        3.Qa6#
  - 1...Kd6!
Keys
- 1.d7!
  - threat
    - 2.d8Q
      - threat
        3.Qxc7#
        3.Qdd4#
      - 2...Kb6
        3.Qxc7#
  - 1...Kb6
    - 2.Qb4+
      - 2...Kc6
        3.Bg2#
      - 2...Ka7
        3.Qa5#
        3.Qb7#
        3.Qb8#
    - 2.d8Q
      - threat
        3.Qxc7#
      - 2...Ka5
        3.Qxc7#
      - 2...Kc5
        3.Qxc7#
        3.Qdd4#
      - 2...Ka7
        3.Qb7#
        3.Qxc7#
  - 1...Kd6
    - 2.d8Q+
      - 2...Kc5
        3.Qxc7#
        3.Qdd4#
  - 1...c6
    - 2.d8B
      - 2...Kd6
        3.Be7#

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