MESON Chess Problem Database

Problem Display
PID: 180156 (1K6/4kB2/8/4N3/8/8/1B2Q3/8 w - - 0 1)

Popovski, Aleksandr

Sachmatija, 2015

1K6/4kB2/8/4N3/8/8/1B2Q3/8

#2

5 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Ba3#
  • Tries
    • 1.Sc4+?
      • 1...Kd7
        • 2.Qe8#
      • 1...Kd8
        • 2.Qe8#
      • 1...Kf8
        • 2.Qe8#
      • 1...Kxf7!
    • 1.Ba3+?
      • 1...Kd8
        • 2.Qd1#
        • 2.Qd3#
        • 2.Qd2#
      • 1...Kf6!
    • 1.Qf1?
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8
        • 2.Sg6#
      • 1...Kd6!
    • 1.Qc4?
      • 1...Kd6
        • 2.Qb4#
        • 2.Qc7#
      • 1...Kd8
        • 2.Qh4#
        • 2.Qc7#
      • 1...Kf8
        • 2.Sg6#
      • 1...Kf6!
    • 1.Qg4?
      • 1...Kd6
        • 2.Qb4#
      • 1...Kd8
        • 2.Sc6#
        • 2.Qd7#
        • 2.Qh4#
        • 2.Qg5#
      • 1...Kf8
        • 2.Ba3#
      • 1...Kf6!
    • 1.Qh5?
      • 1...Kd6
        • 2.Ba3#
      • 1...Kf6
        • 2.Sc6#
      • 1...Kd8
        • 2.Qh4#
        • 2.Qg5#
      • 1...Kf8!
    • 1.Qa6?
      • 1...Kd8
        • 2.Qd6#
        • 2.Qf6#
      • 1...Kf8!
    • 1.Qf2?
      • 1...Kd8
        • 2.Qh4#
        • 2.Qf6#
      • 1...Kf8
        • 2.Sg6#
      • 1...Kd6!
  • Keys
    • 1.Qf3!
      • 1...Kd6
        • 2.Qa3#
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(B)
        • K(a);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::B(A)
        • K(a);S_FLIGHT::B(A)+S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB(B)
      • K(a);S_FLIGHT::S(C)
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