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Problem Display

PID: 53713 (8/n1b5/6R1/1p1kp3/p3N3/4P3/3N4/3B3K w - - 0 1)

Johannessohn, Christolph

Schach, 1950

8/n1b5/6R1/1p1kp3/p3N3/4P3/3N4/3B3K

#3

6 + 6

SOLUTION

SOUND
Sets
- 1...Ba5
  - 2.Rd6#
- 1...Bb6
  - 2.Rd6#
- 1...Bd6
  - 2.Rxd6#
- 1...Bd8
  - 2.Rd6#
- 1...a3
  - 2.Bb3#
- 1...b4
  - 2.Be2
    - threat
      - 3.Bc4#
    - 2...Bd6
      - 3.Rxd6#
  - 2.Bxa4
    - threat
      - 3.Bb3#
    - 2...Bd6
      - 3.Rxd6#
    - 2...b3
      - 3.Bxb3#
Tries
- 1.Bxa4?
  - threat
    - 2.Bb3#
  - 1...Bd6
    - 2.Rxd6#
  - 1...bxa4!
- 1.Bh5?
  - threat
    - 2.Rf6
      - threat
        3.Bf7#
      - 2...Bd6
        3.Rxd6#
    - 2.Rh6
      - threat
        3.Bf7#
      - 2...Bd6
        3.Rxd6#
  - 1...Bb8
    - 2.Ra6
      - threat
        3.Bf7#
    - 2.Rb6
      - threat
        3.Bf7#
    - 2.Rf6
      - threat
        3.Bf7#
      - 2...Bd6
        3.Rxd6#
    - 2.Rh6
      - threat
        3.Bf7#
      - 2...Bd6
        3.Rxd6#
  - 1...Sc6
    - 2.Rd6+
      - 2...Bxd6
        3.Bf7#
  - 1...Sc8!
Keys
- 1.Bg4!
  - 1...Bb8
    - 2.Rb6
      - threat
        3.Be6#
      - 2...Bd6
        3.Rxd6#
      - 2...Sc6
        3.Rxb5#
  - 1...Sc8
    - 2.Bxc8
      - threat
        3.Bb7#
  - 1...a3
    - 2.Bd1
      - threat
        3.Bb3#
      - 2...Bd6
        3.Rxd6#
  - 1...b4
    - 2.Be2
      - threat
        3.Bc4#
      - 2...Bd6
        3.Rxd6#

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