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Problem Display

PID: 62845 (8/3pQ3/1pb5/1r1k4/1p4n1/3BPP1n/1KP5/2Nr4 w - - 0 1)

Rosenbaum, Aleksandr

The Chess Monthly (Hoffer), 1880

8/3pQ3/1pb5/1r1k4/1p4n1/3BPP1n/1KP5/2Nr4

#3

7 + 9

SOLUTION

SOUND
Sets
- 1...b3
  - 2.c4#
- 1...d6
  - 2.Qe4+
    - 2...Kc5
      - 3.Sb3#
      - 3.Qc4#
      - 3.Qd4#
  - 2.Qf7+
    - 2...Kc5
      - 3.Sb3#
      - 3.Qc4#
    - 2...Ke5
      - 3.Qf5#
Tries
- 1.Qe4+?
  - 1...Kc5
    - 2.Qd4#
  - 1...Kd6!
Keys
- 1.Kb3!
  - threat
    - 2.Bc4#
    - 2.Be4#
  - 1...Rxd3+
    - 2.Sxd3
      - 2...Sxe3
        3.Qe5#
      - 2...Bb7
        3.Qxd7#
      - 2...Ba8
        3.Qxd7#
      - 2...Ra5
        3.Sxb4#
      - 2...Rc5
        3.Sxb4#
      - 2...Sg1
        3.Sf4#
      - 2...Shf2
        3.Sf4#
      - 2...Sf4
        3.Sxf4#
      - 2...Sg5
        3.Sf4#
      - 2...Sgf2
        3.Qe5#
      - 2...Sh2
        3.Qe5#
      - 2...Se5
        3.Qxe5#
      - 2...Sf6
        3.Qe5#
      - 2...Sh6
        3.Qe5#
      - 2...d6
        3.Qe4#
        3.Qf7#
  - 1...Sxe3
    - 2.Be4+
      - 2...Kd4
        3.Se2#
  - 1...d6
    - 2.Qe4+
      - 2...Kc5
        3.Qc4#
        3.Qd4#
    - 2.Qf7+
      - 2...Kc5
        3.Qc4#
      - 2...Ke5
        3.Qf5#

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