MESON Chess Problem Database

Problem Display
PID: 159699 (3K4/8/8/3Nk3/8/5Q2/5P2/5B2 w - - 0 1)

Pikhurov, Dimitry Egorovich

Schach, 2000

3K4/8/8/3Nk3/8/5Q2/5P2/5B2

#2

5 + 1

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qd5#
      • 1...Ke6!
    • 1.Sb4?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qd5#
      • 1...Ke6!
    • 1.Sb6?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qd5#
      • 1...Ke6!
    • 1.Sf6?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qd5#
      • 1...Ke6!
    • 1.Se7?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qd5#
      • 1...Ke6!
    • 1.Bg2?
      • threat
        • 2.Qf6#
      • 1...Kd4
        • 2.Qc3#
      • 1...Ke6
        • 2.Qf6#
      • 1...Kd6!
    • 1.Qf4+?
      • 1...Ke6
        • 2.Sc7#
      • 1...Kxd5!
    • 1.Qf6+?
      • 1...Ke4
        • 2.Sc3#
      • 1...Kxd5!
  • Keys
    • 1.Sc7!
      • 1...Kd4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qd5#

This anticipates 199260(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::S(D)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::S(D)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAR1(C)
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