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Problem Display

PID: 246078 (8/8/8/knK4Q/1pB5/8/1R6/8 w - - 0 1)

Zinoviev, Nikolai

Problemist Pribuzhya, 1990

8/8/8/knK4Q/1pB5/8/1R6/8

#2

4 + 3

5454	Near Snap	2021
15148	Sadier Collection	2021

SOUND
Sets
- 1...Sd4
  - 2.Ra2#
- 1...Sd6
  - 2.Ra2#
- 1...Sa7
  - 2.Ra2#
- 1...Sc7
  - 2.Ra2#
Tries
- 1.Kc6?
  - threat
    - 2.Ra2#
    - 2.Qxb5#
  - 1...Ka6
    - 2.Ra2#
  - 1...b3
    - 2.Qxb5#
  - 1...Ka4!
- 1.Qg6?
  - 1...Ka4
    - 2.Qa6#
  - 1...Sa3
    - 2.Qa6#
  - 1...Sc3
    - 2.Qa6#
  - 1...Sd4
    - 2.Ra2#
    - 2.Qa6#
  - 1...Sd6
    - 2.Ra2#
  - 1...Sa7
    - 2.Ra2#
    - 2.Qa6#
  - 1...Sc7
    - 2.Ra2#
  - 1...b3!
- 1.Qh6?
  - 1...Ka4
    - 2.Qa6#
  - 1...Sa3
    - 2.Qa6#
  - 1...Sc3
    - 2.Qa6#
  - 1...Sd4
    - 2.Ra2#
    - 2.Qa6#
  - 1...Sd6
    - 2.Ra2#
  - 1...Sa7
    - 2.Ra2#
    - 2.Qa6#
  - 1...Sc7
    - 2.Ra2#
  - 1...b3!
Keys
- 1.Qe8!
  - threat
    - 2.Qxb5#
  - 1...Ka4
    - 2.Ra2#
  - 1...Ka6
    - 2.Qa8#
  - 1...Sa3
    - 2.Qa8#
  - 1...Sc3
    - 2.Qa8#
  - 1...Sd4
    - 2.Ra2#
    - 2.Qa8#
  - 1...Sd6
    - 2.Ra2#
    - 2.Qa8#
  - 1...Sa7
    - 2.Ra2#
  - 1...Sc7
    - 2.Ra2#

Anticipated by 157598(1982)

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