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Problem Display

PID: 171489 (8/8/8/8/1P6/2Q5/8/1k1K4 w - - 0 1)

Antipov, Viacheslav Pavlovich

Za Ogneypori, 1986

8/8/8/8/1P6/2Q5/8/1k1K4

#3

3 + 1

6490	yacpdb	2018

SOLUTION

SOUND
Tries
- 1.Qd3+?
  - 1...Ka1
    - 2.Kc2
      - 2...Ka2
        3.Qa6#
  - 1...Ka2
    - 2.Kc1
      - 2...Ka1
        3.Qb1#
        3.Qa6#
        3.Qa3#
    - 2.Kc2
      - 2...Ka1
        3.Qa6#
        3.Qa3#
  - 1...Kb2!
- 1.Qe3?
  - 1...Ka1
    - 2.Kc2
      - 2...Ka2
        3.Qa7#
  - 1...Ka2
    - 2.Kc1
      - 2...Ka1
        3.Qa7#
        3.Qa3#
    - 2.Kc2
      - 2...Ka1
        3.Qa7#
        3.Qa3#
  - 1...Kb2!
- 1.Qf3?
  - 1...Ka1
    - 2.Kc2
      - 2...Ka2
        3.Qa8#
  - 1...Ka2
    - 2.Kc1
      - 2...Ka1
        3.Qa8#
        3.Qa3#
    - 2.Kc2
      - 2...Ka1
        3.Qa8#
        3.Qa3#
  - 1...Kb2!
- 1.Qc5?
  - 1...Ka1
    - 2.Kc2
      - 2...Ka2
        3.Qa7#
        3.Qa5#
  - 1...Ka2
    - 2.Kc2
      - threat
        3.Qa7#
        3.Qa5#
      - 2...Ka1
        3.Qa7#
        3.Qa5#
      - 2...Ka3
        3.Qa5#
  - 1...Kb2!
- 1.Qc7?
  - 1...Ka1
    - 2.Kc2
      - 2...Ka2
        3.Qa5#
        3.Qa7#
  - 1...Ka2
    - 2.Kc2
      - threat
        3.Qa5#
        3.Qa7#
      - 2...Ka1
        3.Qa5#
        3.Qa7#
      - 2...Ka3
        3.Qa5#
  - 1...Kb2!
Keys
- 1.Qe5!
  - 1...Ka2
    - 2.Kc2
      - 2...Ka3
        3.Qa5#

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