MESON Chess Problem Database

Problem Display
PID: 193435 (3b4/2N1N3/1pPk4/1Q3P1K/8/8/8/8 w - - 0 1)

Papp, Istvan

Pesti Naplo, 1914

3b4/2N1N3/1pPk4/1Q3P1K/8/8/8/8

#2

6 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc7
      • 2.Qe5#
    • 1...Bxc7
      • 2.Sc8#
    • 1...Bxe7
      • 2.Se8#
  • Tries
    • 1.Kg4?
      • 1...Kxc7
        • 2.Qe5#
      • 1...Bxc7
        • 2.Sc8#
      • 1...Bxe7
        • 2.Se8#
      • 1...Kxe7!
    • 1.Kh6?
      • 1...Kxc7
        • 2.Qe5#
      • 1...Bxc7
        • 2.Sc8#
      • 1...Bxe7
        • 2.Se8#
      • 1...Kxe7!
    • 1.Qb4+?
      • 1...Kxc7
        • 2.Qf4#
      • 1...Ke5!
    • 1.Qd5+?
      • 1...Kxc7
        • 2.Qe5#
      • 1...Kxe7!
    • 1.f6?
      • 1...Kxc7
        • 2.Qe5#
      • 1...Bxc7
        • 2.Qd5#
      • 1...Bxe7!
  • Keys
    • 1.Kg6!
      • 1...Kxc7
        • 2.Qe5#
      • 1...Kxe7
        • 2.Qb4#
      • 1...Bxc7
        • 2.Sc8#
      • 1...Bxe7
        • 2.Se8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XS(E)::QAB(A)
    • B(c);SBLOCK,XS(E)::S(F)
    • B(c);SBLOCK,XS(F)::S(E)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAB(A)
        • B(c);SBLOCK,XS(E)::S(F)
        • B(c);SBLOCK,XS(F)::S(E)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAB(A)
        • B(c);SBLOCK,XS(E)::S(F)
        • B(c);SBLOCK,XS(F)::S(E)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • P(B);
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAB(A)
        • B(c);SBLOCK,XS(E)::QAR1(A)
      • Refutation
        • B(c);XS(F)
  • Actual
    • K(C);S_FLIGHT
    • Vars
      • K(b);S_FLIGHT,XS(E)::QAB(A)
      • K(b);S_FLIGHT,XS(F)::QAB(A)
      • B(c);SBLOCK,XS(E)::S(F)
      • B(c);SBLOCK,XS(F)::S(E)
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