MESON Chess Problem Database

Problem Display
PID: 259606 (1B6/3B4/3pP2Q/4kpR1/8/3P4/1K3P2/8 w - - 0 1)

Kuligin, Nikolai Volodimirovich

Buletin Problemistic, 1993

1B6/3B4/3pP2Q/4kpR1/8/3P4/1K3P2/8

#2

8 + 3

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kc3?
      • 1...Kd5
        • 2.Rxf5#
      • 1...Kf4!
    • 1.Bc6?
      • 1...Kf4
        • 2.Bxd6#
      • 1...Kd4!
    • 1.Rxf5+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Qg7+?
      • 1...Kd5
        • 2.Rxf5#
      • 1...Kf4!
    • 1.Qh2+?
      • 1...Kd4
        • 2.Qxd6#
      • 1...Kd5
        • 2.Qxd6#
      • 1...Kf6!
    • 1.Qh4?
      • 1...Kd5
        • 2.Rxf5#
      • 1...Kf6!
    • 1.Qf6+?
      • 1...Kf4
        • 2.Qxf5#
      • 1...Kd5
        • 2.Rxf5#
      • 1...Kxf6!
    • 1.Qh8+?
      • 1...Kd5
        • 2.Rxf5#
      • 1...Kf4!
    • 1.e7?
      • threat
        • 2.Qxd6#
      • 1...Kd4
        • 2.Qxd6#
      • 1...Kd5
        • 2.Qxd6#
      • 1...Kf4!
  • Keys
    • 1.Qf8!
      • 1...Kd4
        • 2.Qxd6#
      • 1...Kf4
        • 2.Qxf5#
      • 1...Kd5
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P_SPINP(c),S_FLIGHT
    • Try
      • B(G);
      • Vars
        • K(a);N_GUARD,N_SPINP(b),P_SPINP(c),S_FLIGHT::B(H),XP(c)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(D);CHECK,P_PINP(c),XP(b)
      • Vars
        • K(a);N_GUARD,N_SPINP(c),S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT,XR(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P_SPINP(c),S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);N_SPINP(b),OGATE,S_FLIGHT::QAR2(F),XP(c)
        • K(a);OGATE,P-FLIGHT::QAR1(F),XP(c)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(F),XP(b)
        • K(a);P-FLIGHT::R(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P_SPINP(c),S_FLIGHT
    • Try
      • P(E);
      • Threat
        • QAB1(F),XP(c)
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR2(F),XP(c)
        • K(a);P-FLIGHT::QAR1(F),XP(c)
      • Refutation
        • K(a);N_SPINP(b),P_SPINP(c),S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAR2(F),XP(c)
      • K(a);N_GUARD,S_FLIGHT::QAR1(F),XP(b)
      • K(a);N_GUARD,P-FLIGHT::QAR1(F),XP(c)
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