MESON Chess Problem Database

Problem Display
PID: 214875 (4B1bk/8/5KPN/8/8/8/8/3R4 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Land og Folk, 1978

4B1bk/8/5KPN/8/8/8/8/3R4

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bh7
      • 2.g7#
  • Tries
    • 1.Bf7?
      • 1...Bh7
        • 2.g7#
      • 1...Bxf7!
    • 1.Rd7?
      • 1...Ba2
        • 2.Rh7#
      • 1...Bb3
        • 2.Rh7#
      • 1...Bc4
        • 2.Rh7#
      • 1...Bd5
        • 2.Rh7#
      • 1...Be6
        • 2.Rh7#
      • 1...Bh7
        • 2.Rxh7#
        • 2.g7#
      • 1...Bf7!
  • Keys
    • 1.Rd8!
      • 1...Ba2
        • 2.Bf7#
      • 1...Bb3
        • 2.Bf7#
      • 1...Bc4
        • 2.Bf7#
      • 1...Bd5
        • 2.Bf7#
      • 1...Be6
        • 2.Bf7#
      • 1...Bf7
        • 2.Bxf7#
      • 1...Bh7
        • 2.g7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::P(C)
  • Tries
    • Try
      • B(E);
      • Vars
        • B(a);SBLOCK::P(C)
      • Refutation
        • B(a);XB(E)
    • Try
      • R(A);
      • Vars
        • B(a);N_GUARD::R1(A)
      • Refutation
        • B(a);
  • Actual
    • R(A);
    • Vars
      • B(a);OGATEB::R(A)+B(E)
      • B(a);OGATEB::R(A)+B(E),XB(a)
      • B(a);SBLOCK::P(C)
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