MESON Chess Problem Database

Problem Display
PID: 238196 (Q7/8/5R2/8/1N1k4/3BN3/8/K7 w - - 0 1)

Murashev, Pavel Aleksandrovich

Kudesnik, 2010

Q7/8/5R2/8/1N1k4/3BN3/8/K7

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sed5?
      • 1...Kc5
        • 2.Qa7#
      • 1...Ke5!
    • 1.Qg2?
      • 1...Kc3
        • 2.Qb2#
      • 1...Kxe3
        • 2.Qf2#
      • 1...Ke5
        • 2.Qb2#
      • 1...Kc5!
    • 1.Qe4+?
      • 1...Kc5
        • 2.Sa6#
        • 2.Rc6#
        • 2.Qc4#
      • 1...Kc3!
    • 1.Qc6?
      • 1...Ke5
        • 2.Qc3#
        • 2.Qd6#
      • 1...Kxe3!
    • 1.Qa3?
      • 1...Kc5
        • 2.Sbc2#
        • 2.Qc3#
      • 1...Ke5
        • 2.Qb2#
        • 2.Qc3#
      • 1...Kxe3!
    • 1.Qa7+?
      • 1...Ke5
        • 2.Sg4#
      • 1...Kc3!
    • 1.Qb8?
      • 1...Kxe3
        • 2.Qf4#
      • 1...Kc5
        • 2.Qd6#
        • 2.Qb6#
      • 1...Kc3!
    • 1.Qc8?
      • 1...Ke5
        • 2.Qc3#
      • 1...Kxe3!
  • Keys
    • 1.Qa2!
      • 1...Kc3
        • 2.Qb2#
      • 1...Kxe3
        • 2.Qf2#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT::QAB1(F)
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
      • K(a);S_FLIGHT::QAR1(F)
      • K(a);S_FLIGHT::QAB(F)
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