MESON Chess Problem Database

Problem Display
PID: 243384 (1B6/5P1P/P1P1P1P1/1k1N2p1/NP4R1/8/K3P3/8 w - - 0 1)

Back, Par-Erik

Thema Danicum, 1978

1B6/5P1P/P1P1P1P1/1k1N2p1/NP4R1/8/K3P3/8

#2

13 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa4
      • 2.Sc3#
    • 1...Kxa6
      • 2.Sc7#
  • Tries
    • 1.Kb2?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.Ka3?
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.Kb3?
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.Sac3+?
      • 1...Kxc6
        • 2.Rc4#
      • 1...Kxa6!
    • 1.Sdc3+?
      • 1...Kxc6
        • 2.Rc4#
        • 2.b5#
      • 1...Kxa6!
    • 1.e3?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.a7?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Ka6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.e7?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.g7?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.f8S?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.f8B?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.f8R?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.h8Q?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.h8S?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.h8B?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
    • 1.h8R?
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6!
  • Keys
    • 1.f8Q!
      • 1...Kxa4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Sc7#
      • 1...Kxc6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XS(C)::S(F)
    • K(a);S_FLIGHT,XP(G)::S(F)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(H)::R(E)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • P(B);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(G);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(I);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(J);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(K);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(K);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(K);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(L);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(L);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(L);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • P(L);
      • Vars
        • K(a);S_FLIGHT,XS(C)::S(F)
        • K(a);S_FLIGHT,XP(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
  • Actual
    • P(K);
    • Vars
      • K(a);S_FLIGHT,XS(C)::S(F)
      • K(a);S_FLIGHT,XP(G)::S(F)
      • K(a);S_FLIGHT,XP(H)::QAR1(K)
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