MESON Chess Problem Database

Problem Display
PID: 271736 (Q5B1/6kP/3p4/8/7K/8/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Mosiashvili-75 JT (Kudesnik), 2023

Q5B1/6kP/3p4/8/7K/8/8/8

#2

4 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kh8
      • 2.Qa1#
  • Tries
    • 1.Kg5?
      • 1...Kh8
        • 2.Qa1#
      • 1...d5!
    • 1.Qg2+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Kh6
        • 2.Qg5#
        • 2.h8Q#
        • 2.h8R#
      • 1...Kh8
        • 2.Qb2#
      • 1...Kf8!
    • 1.Qd8?
      • 1...Kg6
        • 2.Qg5#
      • 1...Kh6
        • 2.Qg5#
        • 2.Qf6#
      • 1...Kh8
        • 2.Qf6#
      • 1...d5!
    • 1.Qf8+?
      • 1...Kg6
        • 2.h8S#
      • 1...Kh8
        • 2.Qf6#
      • 1...Kxf8!
    • 1.h8Q+?
      • 1...Kg6
        • 2.Qe4#
      • 1...Kxh8!
  • Keys
    • 1.Qd5!
      • 1...Kf6
        • 2.Qg5#
      • 1...Kg6
        • 2.Qg5#
      • 1...Kh6
        • 2.Qg5#
      • 1...Kf8
        • 2.Qf7#
      • 1...Kh8
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,S_FLIGHT::QAB(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB(C)
      • Refutation
        • P(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB1(C)
        • K(b);N_GUARD,S_FLIGHT::QAB(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAR1(C)
        • K(b);N_GUARD,S_FLIGHT::QAB(C)
      • Refutation
        • P(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT::P=S
        • K(b);N_GUARD,S_FLIGHT::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
    • Try
      • P(B);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XQ(B)
  • Actual
    • Q(C);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::QAB1(C)
      • K(b);N_GUARD,P-FLIGHT::QAR1(C)
      • K(b);N_GUARD,S_FLIGHT::QAR1(C)
      • K(b);N_GUARD,S_FLIGHT::QAB(C)
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