MESON Chess Problem Database

Problem Display
PID: 248673 (8/kP1R4/8/P7/Q2K4/8/8/8 w - - 0 1)

Blikeng, Bjarne

Stella Polaris, 1973

8/kP1R4/8/P7/Q2K4/8/8/8

#2

5 + 1

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.b8S#
  • Tries
    • 1.Kc3?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Kd3?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Ke3?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Kc4?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Ke4?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Kc5?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Kd5?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Ke5?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Rc7?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Re7?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Rf7?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Rg7?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Rh7?
      • 1...Ka6
        • 2.b8S#
      • 1...Kb8!
    • 1.Qb3?
      • 1...Ka6
        • 2.Qb6#
      • 1...Kb8!
    • 1.Qb4?
      • 1...Ka6
        • 2.Qb6#
        • 2.b8S#
      • 1...Kb8!
    • 1.b8Q+?
      • 1...Ka6
        • 2.Rd6#
        • 2.Ra7#
        • 2.Qab5#
        • 2.Qd6#
        • 2.Qa7#
        • 2.Qbb5#
        • 2.Qb6#
        • 2.Qb7#
        • 2.Qa8#
        • 2.Qc8#
      • 1...Kxb8!
    • 1.b8R+?
      • 1...Ka6
        • 2.Rb6#
        • 2.Ra8#
        • 2.Qb5#
      • 1...Kxb8!
  • Keys
    • 1.a6!
      • 1...Kb6
        • 2.b8Q#
        • 2.b8R#
      • 1...Kb8
        • 2.a7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::P=S
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT::P=S
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
    • Try
      • P(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • P(C);
    • Vars
      • K(a);S_FLIGHT::P=Q
      • K(a);OGATE,S_FLIGHT::P(C)
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