MESON Chess Problem Database

Problem Display
PID: 219650 (8/p7/8/3Q1p2/kp5K/7R/8/8 w - - 0 1)

Hultberg, Gustav Herbert

Land og Folk, 1975

8/p7/8/3Q1p2/kp5K/7R/8/8

#3

3 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...a5
      • 2.Qc6#
      • 2.Qd7#
  • Tries
    • 1.Rh1?
      • threat
        • 2.Ra1#
      • 1...Ka3
        • 2.Rb1
          • threat
            • 3.Qb3#
            • 3.Qa5#
          • 2...Ka4
            • 3.Ra1#
        • 2.Rh2
          • threat
            • 3.Ra2#
            • 3.Qa2#
          • 2...Ka4
            • 3.Ra2#
          • 2...b3
            • 3.Qa5#
      • 1...b3!
    • 1.Rh2?
      • threat
        • 2.Ra2#
      • 1...Ka3
        • 2.Ra2#
        • 2.Qa2#
      • 1...b3!
    • 1.Rc3?
      • threat
        • 2.Qc6+
          • 2...Ka5
            • 3.Rc5#
      • 1...b3
        • 2.Qc5
          • threat
            • 3.Rc4#
          • 2...b2
            • 3.Ra3#
      • 1...bxc3!
    • 1.Rf3?
      • threat
        • 2.Qc6+
          • 2...Ka5
            • 3.Rxf5#
      • 1...b3
        • 2.Qc5
          • threat
            • 3.Rf4#
          • 2...b2
            • 3.Ra3#
          • 2...f4
            • 3.Rxf4#
      • 1...f4!
    • 1.Qc4?
      • threat
        • 2.Qa6#
      • 1...a5
        • 2.Qc6#
      • 1...a6
        • 2.Qxa6#
      • 1...Ka5!
    • 1.Qb7?
      • threat
        • 2.Qa6#
      • 1...b3
        • 2.Rxb3
          • threat
            • 3.Qb4#
            • 3.Qb5#
          • 2...Ka5
            • 3.Ra3#
            • 3.Qb5#
            • 3.Qxa7#
      • 1...Ka5!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Qc6+
          • 2...Ka5
            • 3.Rd5#
      • 1...b3
        • 2.Qc5
          • threat
            • 3.Rd4#
          • 2...b2
            • 3.Ra3#

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