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Problem Display

PID: 49403 (4N1nN/4P3/6Pk/4p3/Qp2b1B1/4ppK1/1r1P2P1/8 w - - 0 1)

Vetter, Hans

Schach-Express, 1949

4N1nN/4P3/6Pk/4p3/Qp2b1B1/4ppK1/1r1P2P1/8

#4

9 + 8

SOLUTION

SOUND
Keys
- 1.Qa1!
  - threat
    - 2.Qh1+
      - 2...Kg5
        3.Qh4#
        3.Qh5#
  - 1...fxg2
    - 2.Qg1
      - threat
        3.Qxe3#
      - 2...Bxg6
        3.Qh2+
        3...Kg5
        4.Qh4#
        3...Bh5
        4.Qxh5#
      - 2...Rb3
        3.Qh2+
        3...Kg5
        4.Qh4#
        4.Qh5#
  - 1...Rb1
    - 2.Qxe5
      - threat
        3.Qf4#
        3.Qh5#
      - 2...Bxg6
        3.Sf7+
        3...Kh7
        4.Qg7#
        4.Qh8#
        3...Bxf7
        4.Qg7#
        3.Qg7+
        3...Kg5
        4.Sf7#
        4.Qxg6#
  - 1...Bb1
    - 2.Qa6
      - threat
        3.Sf7#
      - 2...Ba2
        3.Qd3
        threat
        4.Qxe3#
        3...Kg5
        4.Qxe3#
        3...exd2
        4.Qe3#
        3...Rb3
        4.Sf7#
        3...e2
        4.Qe3#
        3.Qb6
        threat
        4.Qxe3#
        3...Kg5
        4.Qxe3#
        3...exd2
        4.Qe3#
        3...Rb3
        4.Sf7#
        3...e2
        4.Qe3#
      - 2...Sf6
        3.Qxf6
        threat
        4.Sf7#
        4.Qh4#
        3...Bxg6
        4.Qxg6#

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