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Problem Display

PID: 134108 (2Q5/1qp2b2/pPR1nn2/2B5/2kN4/KR3B2/8/8 w - - 0 1)

Popovski, Aleksandr

The Problemist Supplement, 2009

2Q5/1qp2b2/pPR1nn2/2B5/2kN4/KR3B2/8/8

#3

8 + 7

SOLUTION

SOUND
Sets
- 1...Qxb6
  - 2.Qxe6+
    - 2...Bxe6
      - 3.Bxb6#
    - 2...Sd5
      - 3.Be2#
      - 3.Bxd5#
      - 3.Bxb6#
      - 3.Qe2#
- 1...Qb8
  - 2.Qxa6#
- 1...Bh5
  - 2.Qxe6+
    - 2...Sd5
      - 3.Bxd5#
      - 3.Qxd5#
      - 3.Qe2#
- 1...Bg6
  - 2.Qxe6+
    - 2...Sd5
      - 3.Bxd5#
      - 3.Qxd5#
- 1...Be8
  - 2.Be2+
    - 2...Kd5
      - 3.Qxe6#
  - 2.Qxe6+
    - 2...Sd5
      - 3.Be2#
      - 3.Bxd5#
      - 3.Qxd5#
      - 3.Qe2#
- 1...Sg5
  - 2.Be2+
    - 2...Kd5
      - 3.Qf5#
- 1...Sd8
  - 2.Be2+
    - 2...Kd5
      - 3.Qf5#
  - 2.Qf5
    - threat
      - 3.Be2#
      - 3.Qc2#
      - 3.Qd3#
- 1...Sf8
  - 2.Be2+
    - 2...Kd5
      - 3.Qf5#
  - 2.Qf5
    - threat
      - 3.Be2#
      - 3.Qc2#
      - 3.Qd3#
- 1...Sd5
  - 2.Be2#
Tries
- 1.Qxe6+?
  - 1...Sd5
    - 2.Be2#
    - 2.Bxd5#
    - 2.Qe2#
  - 1...Bxe6!
Keys
- 1.Sf5!
  - threat
    - 2.Se3#
  - 1...Qxc6
    - 2.Qxa6+
      - 2...Kxc5
        3.Rc3#
      - 2...Qb5
        3.Qxb5#
  - 1...Sxc5
    - 2.Qd8
      - threat
        3.Se3#
        3.Be2#
        3.Qd3#
        3.Qd4#
      - 2...Sd7
        3.Qh4#
  - 1...Sg4
    - 2.Qxb7
      - threat
        3.Qxa6#
      - 2...cxb6
        3.Sd6#
      - 2...Sd4
        3.Bxd4#
      - 2...a5
        3.Qa6#

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