MESON Chess Problem Database

Problem Display
PID: 11754 (8/5P2/4k2B/8/2K3N1/7B/8/6Q1 w - - 0 1)

Speckmann, Werner

Schach-Echo, 1971

8/5P2/4k2B/8/2K3N1/7B/8/6Q1

#2

6 + 1

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qc5#
      • 1...Ke7
        • 2.f8Q#
      • 1...Kxf7
        • 2.Qg7#
      • 1...Kxf6!
  • Keys
    • 1.Se5+!
      • 1...Kxe5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg5#
      • 1...Ke7
        • 2.f8Q#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::P=Q
        • K(a);S_FLIGHT,XP(F)::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • S(D);CHECK
    • Vars
      • K(a);P-FLIGHT,XS(D)::QAB1(A)
      • K(a);P-FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::P=Q
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