MESON Chess Problem Database

Problem Display
PID: 271337 (8/4K3/1p1Q4/1P6/8/1Rp5/k1Pp4/2bR4 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Buletin Problemistic, 1992

8/4K3/1p1Q4/1P6/8/1Rp5/k1Pp4/2bR4

#2

6 + 5

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Ka1
      • 2.Qa3#
    • 1...Ba3
      • 2.Qxa3#
  • Tries
    • 1.Ke6?
      • 1...Ka1
        • 2.Qa3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Kf6?
      • 1...Ka1
        • 2.Qa3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Kd7?
      • 1...Ka1
        • 2.Qa3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Kf7?
      • 1...Ka1
        • 2.Qa3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Kd8?
      • 1...Ka1
        • 2.Qa3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Ke8?
      • 1...Ka1
        • 2.Qa3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Kf8?
      • 1...Ka1
        • 2.Qa3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Qb4?
      • 1...Ka1
        • 2.Ra3#
        • 2.Qa3#
        • 2.Qa4#
      • 1...Ba3
        • 2.Rxa3#
        • 2.Qxa3#
      • 1...Bb2!
    • 1.Qe6?
      • 1...Ba3+
        • 2.Rb4#
      • 1...Bb2
        • 2.Rxc3#
      • 1...Ka1!
  • Keys
    • 1.Qd5!
      • 1...Ba3+
        • 2.Rb4#
      • 1...Ka1
        • 2.Qa8#
      • 1...Bb2
        • 2.Rxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
    • B(a);N_GUARD,P_PINQ(E)::QAR1(E),XB(a)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
        • B(a);N_GUARD::QAR1(E),XB(a)
      • Refutation
        • B(a);
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
        • B(a);N_GUARD::QAR1(E),XB(a)
      • Refutation
        • B(a);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
        • B(a);N_GUARD::QAR1(E),XB(a)
      • Refutation
        • B(a);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
        • B(a);N_GUARD::QAR1(E),XB(a)
      • Refutation
        • B(a);
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
        • B(a);N_GUARD::QAR1(E),XB(a)
      • Refutation
        • B(a);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
        • B(a);N_GUARD::QAR1(E),XB(a)
      • Refutation
        • B(a);
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR2(E)
        • B(a);N_GUARD,P_PINQ(E)::QAR1(E),XB(a)
      • Refutation
        • B(a);
    • Try
      • Q(E);
      • Refutation
        • B(a);
    • Try
      • Q(E);
      • Vars
        • B(a);CHECK,SBLOCK::QAB(E)+R(C)
        • B(a);SBLOCK::QAB(E)+R(C),XP(d)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a)
  • Actual
    • Q(E);
    • Vars
      • B(a);CHECK,SBLOCK::QAB(E)+R(C)
      • K(b);P-FLIGHT,P_SPINB(a)::QAB(E)
      • B(a);SBLOCK::QAB(E)+R(C),XP(d)
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