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Problem Display

PID: 252777 (K2R4/4p3/k5p1/4b1r1/B7/R2p1p2/3Bb3/8 w - - 0 1)

Froberg, Johan Hilding Laurentius

Schackvarlden, 1944

K2R4/4p3/k5p1/4b1r1/B7/R2p1p2/3Bb3/8

#3

5 + 8

6490	yacpdb	2021

SOLUTION

SOUND
Sets
- 1...Ba1
  - 2.Rb8
    - threat
      - 3.Bb5#
    - 2...Rb5
      - 3.Bxb5#
- 1...Bf6
  - 2.Rb8
    - threat
      - 3.Bb5#
    - 2...Rb5
      - 3.Bxb5#
- 1...Bg7
  - 2.Rb8
    - threat
      - 3.Bb5#
    - 2...Rb5
      - 3.Bxb5#
- 1...Bb8
  - 2.Rxb8
    - threat
      - 3.Bb5#
    - 2...Rb5
      - 3.Bxb5#
- 1...Bh8
  - 2.Rb8
    - threat
      - 3.Bb5#
    - 2...Rb5
      - 3.Bxb5#
Tries
- 1.Rb8?
  - threat
    - 2.Bd1#
    - 2.Bc2#
    - 2.Bb3#
    - 2.Bb5#
    - 2.Bc6#
    - 2.Bd7#
    - 2.Be8#
  - 1...Bc3
    - 2.Bb5#
  - 1...Rg4
    - 2.Bb5#
  - 1...Bd1
    - 2.Bxd1#
    - 2.Bc2#
    - 2.Bb3#
    - 2.Bb5#
  - 1...Ba1
    - 2.Bb5#
  - 1...Bb2
    - 2.Bb5#
  - 1...Bh2
    - 2.Bb5#
  - 1...Bg3
    - 2.Bb5#
  - 1...Bd4
    - 2.Bb5#
  - 1...Bf4
    - 2.Bb5#
  - 1...Bd6
    - 2.Bb5#
  - 1...Bf6
    - 2.Bb5#
  - 1...Bc7
    - 2.Bb5#
  - 1...Bg7
    - 2.Bb5#
  - 1...Bh8
    - 2.Bb5#
  - 1...Bxb8!
Keys
- 1.Rd5!
  - threat
    - 2.Bb5+
      - 2...Kb6
        3.Ba5#
  - 1...Kb6
    - 2.Ba5+
      - 2...Ka6
        3.Bb5#
  - 1...Bc3
    - 2.Rxc3
      - threat
        3.Rc6#
      - 2...Kb6
        3.Rc6#
  - 1...Bc7
    - 2.Bb5+
      - 2...Kb6
        3.Be3#
        3.Ba5#
        3.Ra6#

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