MESON Chess Problem Database

Problem Display
PID: 15148 (8/5K2/p7/5k2/2Q5/5P2/1R6/8 w - - 0 1)

Speckmann, Werner

Rochade, 1980

8/5K2/p7/5k2/2Q5/5P2/1R6/8

#2

4 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...a5
      • 2.Rb5#
  • Tries
    • 1.Kg7?
      • 1...Kg5
        • 2.Qg4#
      • 1...a5
        • 2.Rb5#
      • 1...Ke5!
    • 1.Rd2?
      • threat
        • 2.Rd5#
      • 1...Ke5
        • 2.Rd5#
        • 2.Qe4#
      • 1...Kg5!
    • 1.Rh2?
      • threat
        • 2.Rh5#
      • 1...Kg5
        • 2.Qg4#
      • 1...Ke5!
    • 1.Rb4?
      • threat
        • 2.Qd5#
        • 2.Qf4#
        • 2.Qc5#
      • 1...Ke5
        • 2.Qe6#
        • 2.Qc5#
      • 1...Kg5!
    • 1.Qc1?
      • 1...a5
        • 2.Rb5#
      • 1...Ke5!
    • 1.Qc7?
      • 1...a5
        • 2.Rb5#
      • 1...Kg5!
  • Keys
    • 1.Rb6!
      • 1...Ke5
        • 2.Qe4#
      • 1...Kg5
        • 2.Qg4#
      • 1...a5
        • 2.Rb5#

There are these afters: 253003

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::R(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • P(b);N_GUARD::R(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Threat
        • R(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Threat
        • DUALS(3)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(b);N_GUARD::R(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(b);N_GUARD::R(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • P(b);N_GUARD::R(A)
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