MESON Chess Problem Database

Problem Display
PID: 238219 (7Q/BK6/R3NP2/8/4kP2/3N4/6R1/8 w - - 0 1)

Murashev, Pavel Aleksandrovich

Pat a Mat, 2012

7Q/BK6/R3NP2/8/4kP2/3N4/6R1/8

#2

9 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sdc5+?
      • 1...Ke3
        • 2.Ra3#
        • 2.Qh3#
      • 1...Kf3
        • 2.Qh3#
      • 1...Kf5
        • 2.Rg5#
      • 1...Kd5!
    • 1.Sg5+?
      • 1...Kd5
        • 2.Qg8#
      • 1...Kf5
        • 2.Qh7#
      • 1...Kxd3!
    • 1.Qh7+?
      • 1...Kf3
        • 2.Se1#
      • 1...Kd5!
    • 1.Qd8?
      • 1...Kf3
        • 2.Qd5#
      • 1...Kf5!
    • 1.Qe8?
      • 1...Kf3
        • 2.Qc6#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Sd4#
        • 2.Sg7#
        • 2.Qg6#
      • 1...Kxd3!
    • 1.f7?
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kd5
        • 2.Qd4#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kf3!
  • Keys
    • 1.Qc8!
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qc6#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Sec5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(I)
        • K(a);S_FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(I)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • Q(I);CHECK
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(a);S_FLIGHT::QAB(I)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(a);S_FLIGHT::QAB(I)
        • K(a);S_FLIGHT::QAB1(I)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • P(F);
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAR1(I)
        • K(a);S_FLIGHT::QAR1(I)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(I);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(B)::QAB1(I)
      • K(a);S_FLIGHT::QAB(I)
      • K(a);S_FLIGHT::QAB1(I)
      • K(a);S_FLIGHT::QAB(I)+S(E)
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