MESON Chess Problem Database

Problem Display
PID: 23452 (3kN3/5K2/1nPN4/8/8/8/8/2R5 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

4th HM., Cuvasijos resp. konkursas, 1955

3kN3/5K2/1nPN4/8/8/8/8/2R5

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Sd7
      • 2.c7#
    • 1...Sc8
      • 2.Sb7#
  • Tries
    • 1.Ra1?
      • 1...Sc4
        • 2.Ra8#
      • 1...Sd5
        • 2.Ra8#
      • 1...Sd7
        • 2.c7#
      • 1...Sa8
        • 2.Rxa8#
      • 1...Sc8
        • 2.Sb7#
      • 1...Sa4!
  • Keys
    • 1.Rb1!
      • 1...Sa4
        • 2.Rb8#
      • 1...Sc4
        • 2.Rb8#
      • 1...Sd5
        • 2.Rb8#
      • 1...Sd7
        • 2.c7#
      • 1...Sa8
        • 2.Rb8#
      • 1...Sc8
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::P(B)
    • S(a);SBLOCK::S(C)
  • Tries
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD::R(A)
        • S(a);SBLOCK::P(B)
        • S(a);N_GUARD::R(A),XS(a)
        • S(a);SBLOCK::S(C)
      • Refutation
        • S(a);
  • Actual
    • R(A);
    • Vars
      • S(a);OGATE::R(A)
      • S(a);SBLOCK::P(B)
      • S(a);SBLOCK::S(C)
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