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Problem Display

PID: 206168 (8/PQ6/R3P1K1/8/6R1/n6b/k7/2b5 w - - 0 1)

Aleksandrov, Vladimir Aleksandrovich

Probleemblad, 2017

8/PQ6/R3P1K1/8/6R1/n6b/k7/2b5

#3

6 + 4

SOLUTION

SOUND
Sets
- 1...Bf4
  - 2.Rxa3+
    - 2...Kxa3
      - 3.a8Q#
      - 3.a8R#
- 1...Bg5
  - 2.Rxa3+
    - 2...Kxa3
      - 3.a8Q#
      - 3.a8R#
- 1...Bh6
  - 2.Rxa3+
    - 2...Kxa3
      - 3.a8Q#
      - 3.a8R#
Tries
- 1.Rxa3+?
  - 1...Kxa3
    - 2.a8Q#
    - 2.a8R#
  - 1...Bxa3!
Keys
- 1.Rg1!
  - threat
    - 2.Rxa3+
      - 2...Kxa3
        3.a8Q#
        3.a8R#
      - 2...Bxa3
        3.Qb1#
  - 1...Bf5+
    - 2.Kxf5
      - 2...Ka1
        3.Rxa3#
      - 2...Bb2
        3.Qd5#
      - 2...Bd2
        3.Qb1#
      - 2...Be3
        3.Qb1#
      - 2...Bf4
        3.Qb1#
      - 2...Bg5
        3.Qb1#
      - 2...Bh6
        3.Qb1#
  - 1...Bf1
    - 2.Rxf1
      - 2...Ka1
        3.Rxa3#
      - 2...Bb2
        3.Qd5#
      - 2...Bd2
        3.Qb1#
      - 2...Be3
        3.Qb1#
      - 2...Bf4
        3.Qb1#
      - 2...Bg5
        3.Qb1#
      - 2...Bh6
        3.Qb1#

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