Meson Chess Problem Database

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Problem Display

PID: 170244 (8/8/2Q5/1B2K3/8/B7/pp6/1k6 w - - 0 1)

Lustenberger, Franz

Tages-Anzeiger, 1986

8/8/2Q5/1B2K3/8/B7/pp6/1k6

#3

4 + 3

6490	yacpdb	2018

SOLUTION

SOUND
Sets
- 1...Ka1
  - 2.Qc3
    - 2...Kb1
      - 3.Qxb2#
- 1...a1S
  - 2.Qc3
    - threat
      - 3.Qxb2#
    - 2...Ka2
      - 3.Qxb2#
Tries
- 1.Bb4?
  - 1...Ka1
    - 2.Qh1+
      - 2...b1Q
        3.Bc3#
      - 2...b1S
        3.Bc3#
      - 2...b1B
        3.Bc3#
      - 2...b1R
        3.Bc3#
  - 1...a1Q
    - 2.Bd3+
      - 2...Ka2
        3.Qa4#
        3.Qd5#
        3.Qc4#
        3.Qe6#
  - 1...a1B
    - 2.Bd3+
      - 2...Ka2
        3.Qa4#
        3.Qd5#
        3.Qc4#
        3.Qe6#
  - 1...a1R
    - 2.Bd3+
      - 2...Ka2
        3.Qa4#
        3.Qd5#
        3.Qc4#
        3.Qe6#
  - 1...a1S!
- 1.Qe4+?
  - 1...Ka1
    - 2.Qd4
      - 2...Kb1
        3.Qxb2#
        3.Qd1#
  - 1...Kc1!
- 1.Qc2+?
  - 1...Ka1
    - 2.Bxb2#
    - 2.Qxb2#
  - 1...Kxc2!
Keys
- 1.Ba4!
  - threat
    - 2.Qh1#
  - 1...Ka1
    - 2.Qc3
      - 2...Kb1
        3.Qe1#
        3.Qxb2#
  - 1...a1Q
    - 2.Bb3
      - threat
        3.Qh1#
        3.Qc2#
  - 1...a1S
    - 2.Qc3
      - threat
        3.Qxb2#
      - 2...Ka2
        3.Qxb2#
  - 1...a1B
    - 2.Qd5
      - 2...Kc1
        3.Qd1#
  - 1...a1R
    - 2.Bb3
      - threat
        3.Qh1#
        3.Qc2#
    - 2.Qc2+
      - 2...Ka2
        3.Qxb2#

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