MESON Chess Problem Database

Problem Display
PID: 22192 (8/8/4Q3/8/RPR5/Nk6/8/K7 w - - 0 1)

Speckmann, Werner

Schach-Echo, 1971

8/8/4Q3/8/RPR5/Nk6/8/K7

#2

6 + 1

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Rd4+?
      • 1...Kc3
        • 2.Qc4#
        • 2.Qe3#
      • 1...Kxa4!
    • 1.Rf4+?
      • 1...Kc3
        • 2.Qe3#
      • 1...Kxa4!
    • 1.Rg4+?
      • 1...Kc3
        • 2.Qe3#
      • 1...Kxa4!
    • 1.Rh4+?
      • 1...Kc3
        • 2.Qe3#
      • 1...Kxa4!
  • Keys
    • 1.Rc3+!
      • 1...Kxc3
        • 2.Qe3#
      • 1...Kxa4
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
  • Actual
    • R(E);CHECK
    • Vars
      • K(a);P-FLIGHT,XR(E)::QAR2(F)
      • K(a);S_FLIGHT,XR(C)::QAB1(F)
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