MESON Chess Problem Database

Problem Display
PID: 135416 (4Q2K/n1R5/p5p1/4Pk2/4R2P/1p2p2p/4p1P1/qbN4n w - - 0 1)

Knudsen, Birger

3rd Prize, Olympic Ty., 1948

4Q2K/n1R5/p5p1/4Pk2/4R2P/1p2p2p/4p1P1/qbN4n

#3

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5+
      • 2.Qxe5#
  • Tries
    • 1.Qf8+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Kxe4!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Qd7+
          • 2...Kxe4
            • 3.Qg4#
      • 1...Kxe4
        • 2.Qxg6+
          • 2...Kd4
            • 3.Sxb3#
          • 2...Kf4
            • 3.Sxe2#
      • 1...Bxe4
        • 2.Qd7+
          • 2...Kf4
            • 3.Sxe2#
      • 1...Qd4
        • 2.Qf7+
          • 2...Kxe4
            • 3.Qf3#
      • 1...Qa4
        • 2.e6+
          • 2...Kxe4
            • 3.Qxa4#
          • 2...Kf6
            • 3.Qf7#
            • 3.Qd8#
            • 3.Qf8#
      • 1...Sf2
        • 2.Sxe2
          • threat
            • 3.Sg3#
            • 3.Rf4#
          • 2...Qxe5+
            • 3.Qxe5#
          • 2...Kxe4
            • 3.Qxg6#
          • 2...Bxe4
            • 3.Qd7#
          • 2...Sxe4
            • 3.Qd7#
      • 1...g5
        • 2.Qd7+
          • 2...Kxe4
            • 3.Qg4#
          • 2...Kg6
            • 3.Qh7#

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