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Problem Display

PID: 256695 (8/r1p1N2p/p1P1p2Q/1p2kp2/1B2p3/2KpN3/3Pb3/6n1 w - - 0 1)

Morra, Juan Carlos

Problem (Zagreb), 1970

8/r1p1N2p/p1P1p2Q/1p2kp2/1B2p3/2KpN3/3Pb3/6n1

#3

7 + 12

6490	yacpdb	2021

SOLUTION

SOUND
Sets
- 1...Rb7
  - 2.cxb7
    - threat
      - 3.Sc6#
    - 2...c5
      - 3.b8Q#
      - 3.b8B#
    - 2...c6
      - 3.Sxc6#
      - 3.b8Q#
      - 3.b8B#
- 1...Bf1
  - 2.Sg4+
    - 2...fxg4
      - 3.Qg5#
- 1...Bg4
  - 2.Sxg4+
    - 2...fxg4
      - 3.Qg5#
- 1...Sf3
  - 2.Qg7+
    - 2...Kf4
      - 3.Sg2#
- 1...f4
  - 2.Qg5#
  - 2.Qg7#
Tries
- 1.Sg4+?
  - 1...fxg4
    - 2.Qg5#
  - 1...Bxg4!
- 1.S3d5?
  - threat
    - 2.Qf4#
    - 2.Qg7#
    - 2.Qf6#
  - 1...e3
    - 2.Qxe3#
    - 2.Qf4#
  - 1...Sh3
    - 2.Qg7#
    - 2.Qf6#
  - 1...f4
    - 2.Qxf4#
    - 2.Qg5#
    - 2.Qg7#
    - 2.Qf6#
  - 1...exd5!
- 1.S7d5?
  - threat
    - 2.Qf4#
    - 2.Qg7#
    - 2.Qf6#
  - 1...Sh3
    - 2.Qg7#
    - 2.Qf6#
  - 1...f4
    - 2.Qxf4#
    - 2.Qg5#
    - 2.Qg7#
    - 2.Qf6#
  - 1...exd5!
- 1.Sg6+?
  - 1...Kf6
    - 2.Sh8+
      - 2...Ke5
        3.Sf7#
  - 1...hxg6!
- 1.Qh2+?
  - 1...f4
    - 2.Qh6
      - threat
        3.Qg5#
        3.Qg7#
  - 1...Kf6!
Keys
- 1.Bc5!
  - threat
    - 2.Bd4+
      - 2...Kd6
        3.S3xf5#
  - 1...b4+
    - 2.Kb2
      - threat
        3.Sc4#
    - 2.Bxb4
      - threat
        3.Sc4#
  - 1...Bg4
    - 2.Sxg4+
      - 2...fxg4
        3.Qg5#
  - 1...Sf3
    - 2.Qg7+
      - 2...Kf4
        3.Sg2#

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