MESON Chess Problem Database

Problem Display
PID: 15366 (8/N7/N7/8/kPn5/8/K7/7R w - - 0 1)

Burmistrov, Sergey Gennadevich

Popov, Valery

Sp. HM., Vecherni Kharkov, 1982

8/N7/N7/8/kPn5/8/K7/7R

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Tries
    • 1.Ra1?
      • 1...Sb2
        • 2.Kxb2#
      • 1...Sd2
        • 2.Kb2#
      • 1...Se3
        • 2.Kb2#
      • 1...Sa5
        • 2.Kb2#
      • 1...Se5
        • 2.Kb2#
      • 1...Sb6
        • 2.Kb2#
      • 1...Sd6
        • 2.Kb2#
      • 1...Sa3!
    • 1.Rh3?
      • 1...Sb2
        • 2.Ra3#
      • 1...Sd2
        • 2.Ra3#
      • 1...Sa3
        • 2.Rxa3#
      • 1...Sa5
        • 2.Ra3#
      • 1...Se5
        • 2.Ra3#
      • 1...Sb6
        • 2.Ra3#
      • 1...Sd6
        • 2.Ra3#
      • 1...Se3!
    • 1.Rh5?
      • 1...Sb2
        • 2.Ra5#
      • 1...Sd2
        • 2.Ra5#
      • 1...Sa3
        • 2.Ra5#
      • 1...Se3
        • 2.Ra5#
      • 1...Sa5
        • 2.Rxa5#
      • 1...Sb6
        • 2.Ra5#
      • 1...Sd6
        • 2.Ra5#
      • 1...Se5!
  • Keys
    • 1.Rh4!
      • 1...Sb2
        • 2.Sc5#
      • 1...Sd2
        • 2.Sc5#
      • 1...Sa3
        • 2.Sc5#
      • 1...Se3
        • 2.Sc5#
      • 1...Sa5
        • 2.Sc5#
      • 1...Se5
        • 2.Sc5#
      • 1...Sb6
        • 2.Sc5#
      • 1...Sd6
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Vars
        • S(b);::R(A)+K(B),XS(b)
        • S(b);::R(A)+K(B)
      • Refutation
        • S(b);
    • Try
      • R(A);
      • Vars
        • S(b);N_GUARD::R1(A)
        • S(b);N_GUARD::R1(A),XS(b)
      • Refutation
        • S(b);
    • Try
      • R(A);
      • Vars
        • S(b);N_GUARD::R1(A)
        • S(b);N_GUARD::R1(A),XS(b)
      • Refutation
        • S(b);
  • Actual
    • R(A);
    • Vars
      • S(b);::S(D)
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