MESON Chess Problem Database

Problem Display
PID: 170676 (8/8/8/6Q1/k1KN4/3r4/8/8 w - - 0 1)

Thiele, Erich

Basler Nachrichten, 1975

8/8/8/6Q1/k1KN4/3r4/8/8

#3

3 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qb5+
        • 2...Ka3
          • 3.Qb3#
    • 1...Rd2
      • 2.Qb5+
        • 2...Ka3
          • 3.Qb3#
    • 1...Ra3
      • 2.Qb5#
    • 1...Rc3+
      • 2.Kxc3
        • 2...Ka3
          • 3.Qa5#
  • Tries
    • 1.Kxd3?
      • threat
        • 2.Kc3
          • 2...Ka3
            • 3.Qa5#
        • 2.Qb5+
          • 2...Ka3
            • 3.Qb3#
      • 1...Kb4
        • 2.Qb5+
          • 2...Ka3
            • 3.Qb3#
      • 1...Ka3!
    • 1.Qe7?
      • threat
        • 2.Qb4#
        • 2.Qa7#
      • 1...Rc3+
        • 2.Kxc3
          • 2...Ka5
            • 3.Qa7#
      • 1...Rxd4+!
    • 1.Qd8?
      • threat
        • 2.Qa8#
      • 1...Rc3+
        • 2.Kxc3
          • 2...Ka3
            • 3.Qa5#
            • 3.Qa8#
      • 1...Rxd4+
        • 2.Qxd4
          • threat
            • 3.Qa1#
            • 3.Qa7#
          • 2...Ka3
            • 3.Qa1#
          • 2...Ka5
            • 3.Qa7#
      • 1...Ka3!
    • 1.Qc5?
      • threat
        • 2.Qb4#
        • 2.Qa7#
      • 1...Rxd4+
        • 2.Qxd4
          • threat
            • 3.Qa1#
            • 3.Qa7#
          • 2...Ka3
            • 3.Qa1#
          • 2...Ka5
            • 3.Qa7#
      • 1...Rc3+!
    • 1.Qd5?
      • threat
        • 2.Qa8#
      • 1...Rc3+
        • 2.Kxc3
          • 2...Ka3
            • 3.Qb3#
            • 3.Qa8#
            • 3.Qa5#
      • 1...Rxd4+
        • 2.Qxd4
          • threat
            • 3.Qa1#
            • 3.Qa7#
          • 2...Ka3
            • 3.Qa1#
          • 2...Ka5
            • 3.Qa7#
      • 1...Ka3!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qa7#
      • 1...Rc3+
        • 2.Kxc3
          • threat
            • 3.Qa7#
          • 2...Ka3
            • 3.Qa7#
          • 2...Ka5
            • 3.Qa7#
      • 1...Rxd4+
        • 2.Qxd4
          • threat
            • 3.Qa1#
            • 3.Qa7#
          • 2...Ka3
            • 3.Qa1#
          • 2...Ka5
            • 3.Qa7#
      • 1...Ka3
        • 2.Sc2+
          • 2...Ka2
            • 3.Qa1#
          • 2...Ka4
            • 3.Qa7#

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