MESON Chess Problem Database

Problem Display
PID: 224226 (8/3p3Q/K2PP3/3kN3/2p1N1P1/2Pp4/3P4/8 w - - 0 1)

Kondelik, Karel

Uber Land und Meer, 1887

8/3p3Q/K2PP3/3kN3/2p1N1P1/2Pp4/3P4/8

#2

9 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qf5#
  • Tries
    • 1.Sxd3?
      • 1...Kc6
        • 2.Sb4#
      • 1...Kxe6
        • 2.Qf5#
        • 2.Qg8#
      • 1...dxe6
        • 2.Qb7#
      • 1...cxd3!
    • 1.Sf3?
      • 1...Kxe6
        • 2.Qf5#
        • 2.Qg8#
      • 1...dxe6
        • 2.Qb7#
      • 1...Kc6!
    • 1.Sxd7?
      • 1...Kxe6
        • 2.Qf5#
      • 1...Kc6!
    • 1.Qg6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...dxe6!
    • 1.exd7?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Ke6!
    • 1.e7?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Ke6!
  • Keys
    • 1.Sg6!
      • 1...Kxe4
        • 2.Qh1#
      • 1...Kc6
        • 2.Se7#
      • 1...Kxe6
        • 2.Qg8#
      • 1...dxe6
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(c);OGATEB,P-FLIGHT,XS(E)::QAR1(I)
  • Tries
    • Try
      • S(E);XP(a)
      • Vars
        • K(c);S_FLIGHT::S(E)
        • P(d);OGATE,SBLOCK,XP(H)::QAB(I)
      • Refutation
        • P(b);XS(E)
    • Try
      • S(E);
      • Vars
        • P(d);OGATE,SBLOCK,XP(H)::QAB(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(E);XP(d)
      • Vars
        • K(c);S_FLIGHT,XP(H)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(E)::QAR1(I)
      • Refutation
        • P(d);XP(H)
    • Try
      • P(H);XP(d)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(E)::QAR1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(H);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(E)::QAR1(I)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(C)::QAB(I)
      • K(c);S_FLIGHT::S(E)
      • K(c);OGATEB,S_FLIGHT,XP(H)::QAB(I)
      • P(d);OGATE,SBLOCK,XP(H)::QAB(I)
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