MESON Chess Problem Database

Problem Display
PID: 275684 (8/5pK1/5Pn1/1Q3R2/1n1Pk3/4P2P/5P2/8 w - - 0 1)

Kuligin, Nikolai Volodimirovich

Buletin Problemistic, 1976

8/5pK1/5Pn1/1Q3R2/1n1Pk3/4P2P/5P2/8

#2

8 + 4

15601 Albrecht-Leiss-Degener Collection 2024
5454 Near Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qb1#
    • 1...Sd3
      • 2.Qd5#
    • 1...Sd5
      • 2.Qb1#
    • 1...Sa6
      • 2.Qb1#
    • 1...Sc6
      • 2.Qb1#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sh4
      • 2.Rf4#
    • 1...Se5
      • 2.Rf4#
    • 1...Se7
      • 2.Rf4#
    • 1...Sf8
      • 2.Rf4#
    • 1...Sh8
      • 2.Rf4#
  • Tries
    • 1.Kh6?
      • 1...Sd5
        • 2.Qb1#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Se5
        • 2.Rf4#
      • 1...Sa2
        • 2.Qb1#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sa6
        • 2.Qb1#
      • 1...Sc6
        • 2.Qb1#
      • 1...Sh4
        • 2.Rf4#
      • 1...Se7
        • 2.Rf4#
      • 1...Sf8
        • 2.Rf4#
      • 1...Sh8
        • 2.Rf4#
      • 1...Sc2!
    • 1.Qc4?
      • 1...Sf4
        • 2.Rxf4#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sa2
        • 2.Qc2#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sd5
        • 2.Qc2#
      • 1...Sa6
        • 2.Qc2#
      • 1...Sc6
        • 2.Qc2#
      • 1...Sh4
        • 2.Rf4#
      • 1...Se5
        • 2.Rf4#
      • 1...Se7
        • 2.Rf4#
      • 1...Sf8
        • 2.Rf4#
      • 1...Sh8
        • 2.Rf4#
      • 1...Kxf5!
    • 1.h4?
      • 1...Sxh4
        • 2.Rf4#
      • 1...Sd5
        • 2.Qb1#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Se5
        • 2.Rf4#
      • 1...Sa2
        • 2.Qb1#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sa6
        • 2.Qb1#
      • 1...Sc6
        • 2.Qb1#
      • 1...Se7
        • 2.Rf4#
      • 1...Sf8
        • 2.Rf4#
      • 1...Sh8
        • 2.Rf4#
      • 1...Sc2!
  • Keys
    • 1.Qe2!
      • 1...Kxf5
        • 2.Qg4#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sa2
        • 2.Qc2#
      • 1...Sd3
        • 2.Qf3#
      • 1...Sd5
        • 2.Qc2#
      • 1...Sa6
        • 2.Qc2#
      • 1...Sc6
        • 2.Qc2#
      • 1...Sf4
        • 2.Re5#
      • 1...Sh4
        • 2.Re5#
      • 1...Se7
        • 2.Re5#
      • 1...Sf8
        • 2.Re5#
      • 1...Sh8
        • 2.Re5#

This anticipates 276498(1981)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 11
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::QAB(E)
    • S(a);N_GUARD,SBLOCK::QAB1(E)
    • S(c);N_GUARD::R1(F),XS(c)
    • S(c);N_GUARD::R1(F)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Vars
        • S(a);OGATE::QAB(E)
        • S(c);N_GUARD::R1(F),XS(c)
        • S(c);N_GUARD::R1(F)
        • S(a);N_GUARD,SBLOCK::QAB1(E)
      • Refutation
        • S(a);
    • Try
      • Q(E);
      • Vars
        • S(c);N_GUARD::R1(F),XS(c)
        • S(a);N_GUARD::QAB(E),XS(a)
        • S(a);N_GUARD::QAB(E)
        • S(a);N_GUARD,SBLOCK::QAB1(E)
        • S(c);N_GUARD::R1(F)
      • Refutation
        • K(b);S_FLIGHT,XR(F)
    • Try
      • P(C);
      • Vars
        • S(c);N_GUARD,XP(C)::R1(F)
        • S(a);OGATE::QAB(E)
        • S(c);N_GUARD::R1(F),XS(c)
        • S(c);N_GUARD::R1(F)
        • S(a);N_GUARD,SBLOCK::QAB1(E)
      • Refutation
        • S(a);
  • Actual
    • Q(E);
    • Vars
      • K(b);N_GUARD,S_CUTS(c),S_FLIGHT,XR(F)::QAB1(E)
      • S(c);N_GUARD::R1(F),XS(c)
      • S(a);N_GUARD::QAB(E),XS(a)
      • S(a);N_GUARD::QAB(E)
      • S(a);SBLOCK::QAB1(E)
      • S(c);N_GUARD::R1(F)
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