MESON Chess Problem Database

Problem Display
PID: 10647 (8/5Bk1/5RP1/8/3K2Q1/8/8/6R1 w - - 0 1)

Speckmann, Werner

Shakhmaty v SSSR, 1966

8/5Bk1/5RP1/8/3K2Q1/8/8/6R1

#2

6 + 1

3295 Einfuhrung in die Welt des Schachproblem 1984
4883 Still More Fun with Chess Miniatures 2002
136 Problem Observer 2008

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5?
      • 1...Kh6
        • 2.g7#
      • 1...Kh8
        • 2.g7#
      • 1...Kf8!
    • 1.Qh5?
      • 1...Kxf6
        • 2.Qe5#
      • 1...Kf8!
    • 1.Qc8?
      • 1...Kh6
        • 2.Qh8#
      • 1...Kxf6!
    • 1.Qf4?
      • 1...Kh8
        • 2.Qh6#
      • 1...Kf8!
    • 1.Qg5?
      • 1...Kh8
        • 2.Qh6#
      • 1...Kf8!
  • Keys
    • 1.Qe4!
      • 1...Kxf6
        • 2.Qe5#
      • 1...Kh6
        • 2.g7#
      • 1...Kf8
        • 2.g7#
      • 1...Kh8
        • 2.g7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);OGATE,S_FLIGHT::R(D)+P(E)
        • K(a);OGATE,S_FLIGHT::P(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(C)
      • K(a);OGATE,S_FLIGHT::R(D)+P(E)
      • K(a);OGATE,S_FLIGHT::P(E)
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