MESON Chess Problem Database

Problem Display
PID: 237423 (4K3/8/8/2P1B1P1/1P1PkP1P/3N1N1R/2Q1P3/4R3 w - - 0 1)

Labai, Zoltan

Pravda, 2000

4K3/8/8/2P1B1P1/1P1PkP1P/3N1N1R/2Q1P3/4R3

#2

14 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sd2#
  • Tries
    • 1.Ke7?
      • 1...Ke3
        • 2.Sd2#
      • 1...Kf5
        • 2.Sf2#
      • 1...Kd5!
    • 1.Kf7?
      • 1...Ke3
        • 2.Sd2#
      • 1...Kf5
        • 2.Sf2#
      • 1...Kd5!
    • 1.Sb2+?
      • 1...Ke3
        • 2.Sd1#
      • 1...Kd5!
    • 1.Sf2+?
      • 1...Ke3
        • 2.Sd1#
        • 2.Sg4#
      • 1...Kd5!
    • 1.Qa2?
      • 1...Ke3
        • 2.Sd2#
      • 1...Kf5!
    • 1.d5?
      • 1...Ke3
        • 2.Sd2#
      • 1...Kf5
        • 2.Sf2#
      • 1...Kxd5!
  • Keys
    • 1.Kd7!
      • 1...Ke3
        • 2.Sd2#
      • 1...Kd5
        • 2.e4#
      • 1...Kf5
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(F)+S(E)
  • Tries
    • Try
      • K(N);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(F)+S(E)
        • K(a);S_FLIGHT::QAB(B)+S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(N);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(F)+S(E)
        • K(a);S_FLIGHT::QAB(B)+S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::R(F)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(H);
      • Vars
        • K(a);P-FLIGHT::R(F)+S(E)
        • K(a);S_FLIGHT::QAB(B)+S(D)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
  • Actual
    • K(N);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT::R(F)+S(E)
      • K(a);OGATE,S_FLIGHT::P(C)
      • K(a);S_FLIGHT::QAB(B)+S(D)
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