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Problem Display

PID: 250669 (4N2r/5R2/7n/4PPpB/3p2P1/3Pk2N/8/3Q3K w - - 0 1)

Makaronets, Leonid

Schweizerische Schachzeitung, 1998

4N2r/5R2/7n/4PPpB/3p2P1/3Pk2N/8/3Q3K

#3

10 + 5

SOLUTION

SOUND
Sets
- 1...Rh7
  - 2.Sd6
    - threat
      - 3.Sc4#
  - 2.Sf6
    - threat
      - 3.Sd5#
  - 2.Sc7
    - threat
      - 3.Sd5#
- 1...Sg8
  - 2.Sd6
    - threat
      - 3.Sc4#
Tries
- 1.Kg2?
  - threat
    - 2.Kf1
      - threat
        3.Qe2#
  - 1...Sxg4
    - 2.Sf6
      - threat
        3.Sxg4#
        3.Sd5#
      - 2...Sxf6
        3.Qe2#
  - 1...Sxf5!
- 1.Rc7?
  - threat
    - 2.Sd6
      - threat
        3.Sc4#
    - 2.Rc2
      - threat
        3.Qe2#
    - 2.Qe1+
      - 2...Kxd3
        3.Sf2#
      - 2...Kf3
        3.Qf2#
  - 1...Rxe8
    - 2.Rc2
      - threat
        3.Qe2#
    - 2.Qe1+
      - 2...Kxd3
        3.Sf2#
      - 2...Kf3
        3.Qf2#
  - 1...Sxf5
    - 2.Qe1+
      - 2...Kxd3
        3.Sf2#
      - 2...Kf3
        3.Qf2#
  - 1...Rh7
    - 2.Rc2
      - threat
        3.Qe2#
    - 2.Qe1+
      - 2...Kxd3
        3.Sf2#
      - 2...Kf3
        3.Qf2#
  - 1...Sf7
    - 2.Rc2
      - threat
        3.Qe2#
    - 2.Qe1+
      - 2...Kxd3
        3.Sf2#
      - 2...Kf3
        3.Qf2#
  - 1...Sxg4!
- 1.Qe1+?
  - 1...Kf3
    - 2.Qf2#
  - 1...Kxd3!
- 1.Qd2+?
  - 1...Kf3
    - 2.Qf2#
  - 1...Kxd2!
Keys
- 1.Kg1!
  - threat
    - 2.Kf1
      - threat
        3.Qe2#
  - 1...Sxg4
    - 2.Sf6
      - threat
        3.Sxg4#
        3.Sd5#
      - 2...Sxf6
        3.Qe2#
  - 1...Sxf5
    - 2.Sd6
      - threat
        3.Sc4#
        3.Sxf5#
      - 2...Sxd6
        3.Rf3#

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