MESON Chess Problem Database

Problem Display
PID: 264428 (R7/5p1p/P6k/8/5N1K/8/8/BB6 w - - 0 1)

Zheltonozhko, V?

The Problemist, 1992

R7/5p1p/P6k/8/5N1K/8/8/BB6

#2

6 + 3

5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rb8?
      • 1...f5
        • 2.Rb6#
      • 1...f6!
    • 1.Rc8?
      • 1...f5
        • 2.Rc6#
      • 1...f6!
    • 1.Rd8?
      • 1...f5
        • 2.Rd6#
      • 1...f6!
    • 1.Re8?
      • 1...f5
        • 2.Re6#
      • 1...f6!
  • Keys
    • 1.Ra7!
      • 1...f5
        • 2.Bg7#
      • 1...f6
        • 2.Rxh7#

Anticipated by 183976(1981)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);
      • Vars
        • P(b);N_GUARD::R(F)
      • Refutation
        • P(b);
    • Try
      • R(F);
      • Vars
        • P(b);N_GUARD::R(F)
      • Refutation
        • P(b);
    • Try
      • R(F);
      • Vars
        • P(b);N_GUARD::R(F)
      • Refutation
        • P(b);
    • Try
      • R(F);
      • Vars
        • P(b);N_GUARD::R(F)
      • Refutation
        • P(b);
  • Actual
    • R(F);
    • Vars
      • P(b);::B(A)
      • P(b);OGATE::R1(F),XP(c)
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