MESON Chess Problem Database

Problem Display
PID: 23683 (8/8/8/4K3/8/3kN1Q1/7R/n7 w - - 0 1)

Weissauer, Hermann

Zeit-Magazin, 1977

8/8/8/4K3/8/3kN1Q1/7R/n7

#2

4 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Kd5?
      • threat
        • 2.Sd1#
        • 2.Sf1#
        • 2.Sc2#
        • 2.Sc4#
        • 2.Sg4#
        • 2.Sf5#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Kc3!
    • 1.Qg6+?
      • 1...Kxe3
        • 2.Qe4#
        • 2.Qg3#
      • 1...Kc3!
  • Keys
    • 1.Qg8!
      • 1...Kc3
        • 2.Qc4#
      • 1...Kxe3
        • 2.Qg3#
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sc2
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • DUALS(6)
      • Vars
        • S(a);::QAR(C)+S(B),XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT::QAR1(C)
      • K(b);OGATEB,P-FLIGHT,XS(B)::QAR2(C)
      • S(a);N_GUARD::QAR2(C),XS(a)
      • S(a);N_GUARD::QAR2(C)
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