MESON Chess Problem Database

Problem Display
PID: 166209 (3K4/8/2Pp2pQ/3Bk1p1/PppN4/4p3/4P3/8 w - - 0 1)

Petrov, Evgeny Aleksandrovich

Stella Polaris, 1966

3K4/8/2Pp2pQ/3Bk1p1/PppN4/4p3/4P3/8

#3

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qh2+
        • 2...Kg4
          • 3.Bf3#
          • 3.Be6#
    • 1...Kf6
      • 2.Qh8#
  • Tries
    • 1.Sf3+?
      • 1...Kf4
        • 2.Qxg5#
      • 1...Kf5
        • 2.Qxg5#
      • 1...Kf6
        • 2.Qf8#
      • 1...Kxd5!
    • 1.Se6?
      • threat
        • 2.Qxg5#
      • 1...Kf6
        • 2.Ke8
          • threat
            • 3.Qxg5#
          • 2...Ke5
            • 3.Qxg5#
          • 2...Kf5
            • 3.Qxg5#
          • 2...g4
            • 3.Qf4#
            • 3.Qg5#
      • 1...Kxd5!
    • 1.Qh1?
      • threat
        • 2.Qe4+
          • 2...Kf6
            • 3.Qe7#
      • 1...Kf4
        • 2.Qh2+
          • 2...Kg4
            • 3.Bf3#
            • 3.Be6#
      • 1...Kxd4!
    • 1.Qh8+?
      • 1...Kf4
        • 2.Qh2+
          • 2...Kg4
            • 3.Bf3#
            • 3.Be6#
      • 1...Kxd5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qh8+
          • 2...Kf4
            • 3.Qh2#
      • 1...Kxd4
        • 2.Qg7+
          • 2...Kc5
            • 3.Qa7#
      • 1...Kf6
        • 2.Qh8+
          • 2...Kf7
            • 3.Bd5#
      • 1...d5
        • 2.Qg7+
          • 2...Kf4
            • 3.Qc7#
          • 2...Kd6
            • 3.Qe7#
      • 1...g4
        • 2.Qxe3+
          • 2...Kf6
            • 3.Qe7#

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