MESON Chess Problem Database

Problem Display
PID: 7591 (8/3N4/7Q/5kp1/8/4K3/6P1/8 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

The Problemist, 1991

8/3N4/7Q/5kp1/8/4K3/6P1/8

#2

4 + 2

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qh3#
    • 1...g4
      • 2.Qf6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qe6#
      • 1...Kg4
        • 2.Qh3#
      • 1...Ke5
        • 2.Qe6#
      • 1...g4!
    • 1.Qa6?
      • 1...g4
        • 2.Qf6#
      • 1...Kg4!
    • 1.Qb6?
      • 1...g4
        • 2.Qf6#
      • 1...Kg4!
    • 1.Qc6?
      • threat
        • 2.Qe4#
      • 1...g4
        • 2.Qf6#
      • 1...Kg4!
    • 1.Qd6?
      • 1...g4
        • 2.Qf6#
      • 1...Kg4!
    • 1.Qh7+?
      • 1...Kg4
        • 2.Qh3#
      • 1...Ke6!
    • 1.g3?
      • 1...g4
        • 2.Qf6#
      • 1...Kg4!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Qe6#
      • 1...Kg4
        • 2.Qh3#
      • 1...Ke5
        • 2.Qe6#
      • 1...g4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(C)
    • P(b);SBLOCK::QAR1(C)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Vars
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);
      • Vars
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);P-FLIGHT::QAR1(C)
      • P(b);OGATE::QAR1(C)
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