MESON Chess Problem Database

Problem Display
PID: 272153 (8/4N1k1/3KP1P1/8/5N2/5Q2/8/8 w - - 0 1)

Krasichenok, V

Mosiashvili-75 JT (Kudesnik), 2023

8/4N1k1/3KP1P1/8/5N2/5Q2/8/8

#2

6 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kh8
      • 2.Qc3#
  • Tries
    • 1.Se2?
      • 1...Kh8
        • 2.Qc3#
        • 2.Qf6#
        • 2.Qf8#
      • 1...Kh6!
    • 1.Sg2?
      • 1...Kh8
        • 2.Qc3#
        • 2.Qf6#
        • 2.Qf8#
      • 1...Kh6!
    • 1.Sd3?
      • 1...Kh8
        • 2.Qf6#
        • 2.Qf8#
      • 1...Kh6!
    • 1.Sh3?
      • 1...Kh8
        • 2.Qc3#
        • 2.Qf6#
        • 2.Qf8#
      • 1...Kh6!
    • 1.Sfd5?
      • 1...Kh8
        • 2.Qc3#
        • 2.Qf6#
        • 2.Qf8#
      • 1...Kh6!
    • 1.Sh5+?
      • 1...Kh8
        • 2.Qa8#
        • 2.Qc3#
        • 2.Qf6#
        • 2.Qf8#
      • 1...Kh6!
    • 1.Sf5+?
      • 1...Kf8
        • 2.Qa8#
      • 1...Kg8
        • 2.Qa8#
      • 1...Kh8
        • 2.Qa8#
      • 1...Kf6!
    • 1.Qh1?
      • 1...Kf8
        • 2.Qh8#
      • 1...Kf6!
    • 1.Qg2?
      • 1...Kf6
        • 2.Sh5#
      • 1...Kh6
        • 2.Sf5#
      • 1...Kh8
        • 2.Qb2#
      • 1...Kf8!
    • 1.Qc3+?
      • 1...Kf8
        • 2.Qh8#
      • 1...Kh6!
    • 1.Qg3?
      • 1...Kf6
        • 2.Sh5#
      • 1...Kh6
        • 2.Sf5#
      • 1...Kh8
        • 2.Qc3#
      • 1...Kf8!
    • 1.Qh3?
      • 1...Kf8
        • 2.Qh8#
      • 1...Kf6!
  • Keys
    • 1.Qh5!
      • 1...Kf6
        • 2.Qe5#
      • 1...Kf8
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAB(A)
  • Tries
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR(A)
        • K(a);N_GUARD,P-FLIGHT::QAR(A)
        • K(a);N_GUARD,S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(B)
        • K(a);N_GUARD,S_FLIGHT::S(F)
        • K(a);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(B)
        • K(a);N_GUARD,S_FLIGHT::S(F)
        • K(a);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAB1(A)
      • K(a);N_GUARD,S_FLIGHT::QAR2(A)
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