MESON Chess Problem Database

Problem Display
PID: 238239 (Q7/8/6R1/3N4/4k3/1K6/4N3/5B2 w - - 0 1)

Murashev, Pavel Aleksandrovich

Kudesnik, 2015

Q7/8/6R1/3N4/4k3/1K6/4N3/5B2

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sdf4+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Kf5
        • 2.Qd5#
      • 1...Ke3!
    • 1.Qc6?
      • 1...Kd3
        • 2.Qc2#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kf5
        • 2.Qe6#
      • 1...Kf3!
    • 1.Qe8+?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3
        • 2.Qe3#
      • 1...Kf5
        • 2.Sg3#
        • 2.Sd4#
        • 2.Se3#
        • 2.Bh3#
        • 2.Qe6#
      • 1...Kxd5!
  • Keys
    • 1.Qc8!
      • 1...Kd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qf5#
      • 1...Kxd5
        • 2.Qf5#
      • 1...Ke5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
        • K(a);P-FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT::QAB1(F)
      • K(a);S_FLIGHT::QAR2(F)
      • K(a);S_FLIGHT,XS(D)::QAR2(F)
      • K(a);P-FLIGHT::QAR1(F)
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