MESON Chess Problem Database

Problem Display
PID: 249575 (6B1/1R6/1P6/1k1NB3/1P6/5R2/8/6KQ w - - 0 1)

Matthaus, Hans Georg

Deutsche Schachzeitung, 1979

6B1/1R6/1P6/1k1NB3/1P6/5R2/8/6KQ

#2

9 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Ra3?
      • 1...Kc6
        • 2.Sc3#
      • 1...Kc4!
    • 1.Rc3?
      • 1...Ka6
        • 2.Sc7#
      • 1...Ka4!
    • 1.Rf4?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Sc3#
      • 1...Ka4!
    • 1.Qh3?
      • 1...Ka4
        • 2.Qd7#
      • 1...Kc4
        • 2.Qf1#
      • 1...Kc6
        • 2.Qd7#
      • 1...Ka6!
    • 1.Qh6?
      • 1...Ka4
        • 2.Qc6#
      • 1...Kc4
        • 2.Qc6#
      • 1...Ka6!
    • 1.Qh7?
      • 1...Ka4
        • 2.Qd7#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qd7#
      • 1...Ka6!
  • Keys
    • 1.Rb3!
      • 1...Ka4
        • 2.Sc3#
      • 1...Kc4
        • 2.Sc7#
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::QAB(B)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::S(E)
        • K(a);S_FLIGHT::QAB(B)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::S(E)
      • K(a);S_FLIGHT::B(I)+S(E)
      • K(a);S_FLIGHT::QAB(B)+S(E)
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