MESON Chess Problem Database

Problem Display
PID: 174452 (2K5/8/kP6/BR6/n1P5/8/8/R4B2 w - - 0 1)

Lider, Valentin Viktorovich

Comm., Busmen's Chess Review, 1971-1972

2K5/8/kP6/BR6/n1P5/8/8/R4B2

#2

7 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Bxc3#
    • 1...Sxb6+
      • 2.Bxb6#
  • Tries
    • 1.Bg2?
      • threat
        • 2.Bb7#
      • 1...Sxb6+
        • 2.Bxb6#
      • 1...Sc5!
  • Keys
    • 1.c5!
      • 1...Sxb6+
        • 2.Bxb6#
      • 1...Sxc5
        • 2.Rxc5#
      • 1...Sb2
        • 2.Rxb2#
      • 1...Sc3
        • 2.Bxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATEB::R(A)+B(D),XS(a)
    • S(a);CHECK,OGATE,XP(F)::R(A)+B(D),XS(a)
  • Tries
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • S(a);CHECK,OGATE,XP(F)::R(A)+B(D),XS(a)
      • Refutation
        • S(a);
  • Actual
    • P(C);
    • Vars
      • S(a);CHECK,OGATE,XP(F)::R(A)+B(D),XS(a)
      • S(a);OGATE,XP(C)::B(B)+R(E),XS(a)
      • S(a);::B(B)+R(E),XS(a)
      • S(a);OGATEB::R(A)+B(D),XS(a)
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