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Problem Display

PID: 182713 (8/1Bp5/5pP1/1K2kp2/2p3p1/8/5P2/3Q2n1 w - - 0 1)

Borgatti, Carlo

British Chess Magazine, 1913

8/1Bp5/5pP1/1K2kp2/2p3p1/8/5P2/3Q2n1

#3

5 + 7

SOLUTION

SOUND
Sets
- 1...f4
  - 2.Qd5#
Keys
- 1.Kc6!
  - threat
    - 2.Qd2
      - threat
        3.Qe3#
      - 2...Ke4
        3.Qe3#
      - 2...Ke6
        3.Qe3#
      - 2...f4
        3.Qd5#
  - 1...Ke4
    - 2.Qd2
      - threat
        3.Qe3#
      - 2...Kf3
        3.Kxc7#
      - 2...Ke5
        3.Qe3#
      - 2...f4
        3.Qd5#
  - 1...Kf4
    - 2.Qd2+
      - 2...Kf3
        3.Kxc7#
      - 2...Ke4
        3.Qe3#
      - 2...Ke5
        3.Qe3#
  - 1...Ke6
    - 2.Qe1+
      - 2...Se2
        3.Qxe2#
  - 1...Se2
    - 2.Qxe2+
      - 2...Kd4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
  - 1...Sf3
    - 2.Qe2+
      - 2...Kd4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
  - 1...Sh3
    - 2.Qe2+
      - 2...Kd4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
    - 2.Qe1+
      - 2...Kd4
        3.Qe3#
      - 2...Kf4
        3.Qe3#
  - 1...c3
    - 2.Qd3
      - threat
        3.Qe3#
      - 2...Kf4
        3.Qe3#
      - 2...Ke6
        3.Qe3#
      - 2...f4
        3.Qd5#

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