MESON Chess Problem Database

Problem Display
PID: 238182 (8/4kB2/1K1NP3/4R3/8/8/8/Q7 w - - 0 1)

Murashev, Pavel Aleksandrovich

ChessStar, 2009

8/4kB2/1K1NP3/4R3/8/8/8/Q7

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5+?
      • 1...Kd8
        • 2.Qa8#
      • 1...Kf8
        • 2.Qa3#
        • 2.Qa8#
      • 1...Kf6!
    • 1.Se8?
      • 1...Kf8
        • 2.Qa3#
      • 1...Kd8!
    • 1.Re1?
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8
        • 2.e7#
      • 1...Kxd6!
    • 1.Re2?
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8
        • 2.e7#
      • 1...Kxd6!
    • 1.Re3?
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8
        • 2.e7#
      • 1...Kxd6!
    • 1.Re4?
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8
        • 2.e7#
      • 1...Kxd6!
    • 1.Ra5?
      • 1...Kxd6
        • 2.Qa3#
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8!
    • 1.Rb5?
      • 1...Kxd6
        • 2.Qa3#
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8!
    • 1.Rd5?
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8!
    • 1.Rf5?
      • 1...Kxd6
        • 2.Qa3#
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8!
    • 1.Rg5?
      • 1...Kxd6
        • 2.Qa3#
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8!
    • 1.Rh5?
      • 1...Kxd6
        • 2.Qa3#
      • 1...Kd8
        • 2.Qf6#
      • 1...Kf8!
    • 1.Qc1?
      • 1...Kxd6
        • 2.Qc5#
        • 2.Qc7#
      • 1...Kf6
        • 2.Qg5#
      • 1...Kd8
        • 2.Qg5#
        • 2.Qc7#
      • 1...Kf8!
  • Keys
    • 1.Qg1!
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg5#
      • 1...Kd8
        • 2.Qg5#
      • 1...Kf8
        • 2.e7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);OGATE,S_FLIGHT::P(E)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);OGATE,S_FLIGHT::P(E)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);OGATE,S_FLIGHT::P(E)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);OGATE,S_FLIGHT::P(E)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(A)
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(A)
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(A)
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(A)
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(A)
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::QAB(A)
      • K(a);OGATE,S_FLIGHT::P(E)
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