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Problem Display

PID: 223878 (8/p7/R2B4/p7/k7/8/2K5/5B2 w - - 0 1)

Karge, Fritz

Deutsche Schachzeitung, 1985

8/p7/R2B4/p7/k7/8/2K5/5B2

#3

4 + 3

6490	yacpdb	2020

SOLUTION

SOUND
Tries
- 1.Bg3?
  - threat
    - 2.Kc3
      - 2...Ka3
        3.Rxa5#
    - 2.Be1
      - 2...Ka3
        3.Rxa5#
  - 1...Ka3
    - 2.Rxa5+
      - 2...Kb4
        3.Be1#
  - 1...Kb4!
- 1.Bf4?
  - threat
    - 2.Kc3
      - 2...Ka3
        3.Rxa5#
    - 2.Bd2
      - 2...Ka3
        3.Rxa5#
  - 1...Ka3
    - 2.Rxa5+
      - 2...Kb4
        3.Bd2#
  - 1...Kb4!
- 1.Be5?
  - threat
    - 2.Kc3
      - 2...Ka3
        3.Rxa5#
    - 2.Bc3
      - 2...Ka3
        3.Rxa5#
  - 1...Ka3
    - 2.Rxa5+
      - 2...Kb4
        3.Bc3#
  - 1...Kb4!
- 1.Bc7?
  - threat
    - 2.Kc3
      - 2...Ka3
        3.Rxa5#
    - 2.Bxa5
      - 2...Ka3
        3.Be1#
        3.Bd2#
        3.Bc3#
  - 1...Ka3
    - 2.Bxa5
      - threat
        3.Be1#
        3.Bd2#
        3.Bc3#
      - 2...Ka2
        3.Be1#
        3.Bd2#
        3.Bc3#
        3.Bb4#
        3.Bb6#
        3.Bc7#
        3.Bd8#
      - 2...Ka4
        3.Be1#
        3.Bd2#
        3.Bc3#
  - 1...Kb4!
Keys
- 1.Rb6!
  - threat
    - 2.Bb5#
  - 1...axb6
    - 2.Bc4
      - 2...b5
        3.Bb3#
  - 1...a6
    - 2.Bb4
      - 2...axb4
        3.Rxa6#

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