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Problem Display

PID: 249202 (6Q1/1N6/2P5/1p6/k2N2K1/r1p3p1/2p5/2r5 w - - 0 1)

Kuhn, Hans R

Deutsche Schachzeitung, 1982

6Q1/1N6/2P5/1p6/k2N2K1/r1p3p1/2p5/2r5

#3

5 + 7

6490	yacpdb	2021

SOLUTION

SOUND
Sets
- 1...Kb4
  - 2.Qd5
    - threat
      - 3.Qxb5#
    - 2...Ka4
      - 3.Qxb5#
    - 2...Raa1
      - 3.Qb3#
    - 2...Ra2
      - 3.Qb3#
    - 2...Rb3
      - 3.Qxb3#
    - 2...Ra5
      - 3.Qb3#
    - 2...Ra6
      - 3.Qb3#
    - 2...Ra7
      - 3.Qb3#
    - 2...Ra8
      - 3.Qb3#
    - 2...Ra4
      - 3.Qb3#
      - 3.Qc5#
- 1...Ra1
  - 2.Qb3#
- 1...Ra2
  - 2.Qb3#
- 1...Rb3
  - 2.Qxb3#
- 1...b4
  - 2.Qa8#
Tries
- 1.Qc4+?
  - 1...b4
    - 2.Qb5#
    - 2.Qa6#
  - 1...bxc4!
- 1.Qd5?
  - threat
    - 2.Qxb5#
  - 1...Kb4
    - 2.Qxb5#
  - 1...Raa1
    - 2.Qb3#
  - 1...Ra2
    - 2.Qb3#
  - 1...Rb3
    - 2.Qxb3#
  - 1...b4
    - 2.Qa5#
    - 2.Qb5#
  - 1...Rb1!
Keys
- 1.Qd8!
  - threat
    - 2.Qa5#
  - 1...Kb4
    - 2.Qd5
      - threat
        3.Qxb5#
      - 2...Ka4
        3.Qxb5#
      - 2...Raa1
        3.Qb3#
      - 2...Ra2
        3.Qb3#
      - 2...Rb3
        3.Qxb3#
      - 2...Ra5
        3.Qb3#
      - 2...Ra6
        3.Qb3#
      - 2...Ra7
        3.Qb3#
      - 2...Ra8
        3.Qb3#
      - 2...Ra4
        3.Qb3#
        3.Qc5#

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