MESON Chess Problem Database

Problem Display
PID: 9940 (2kBn2R/6P1/1RK5/8/8/8/8/8 w - - 0 1)

Petkov, Petko Andonov

Comm., Themes-64, 1960

2kBn2R/6P1/1RK5/8/8/8/8/8

#2

5 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984
133 The Problemist Supplement 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Bxf6#
    • 1...Sc7
      • 2.Bxc7#
  • Tries
    • 1.g8Q?
      • 1...Kxd8
        • 2.Qxe8#
      • 1...Sd6
        • 2.Qe6#
      • 1...Sf6
        • 2.Bxf6#
      • 1...Sc7
        • 2.Bxc7#
      • 1...Sg7!
  • Keys
    • 1.g8S!
      • 1...Kxd8
        • 2.Rb8#
      • 1...Sd6
        • 2.Se7#
      • 1...Sf6
        • 2.Se7#
      • 1...Sc7
        • 2.Se7#
      • 1...Sg7
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATEB::R(E)+B(D),XS(b)
  • Tries
    • Try
      • P(C);
      • Vars
        • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XB(D)::QAR1(C),XS(b)
        • S(b);::QAB(C)
        • S(b);OGATEB::QAR(C)+B(D),XS(b)
      • Refutation
        • S(b);
  • Actual
    • P(C);
    • Vars
      • K(a);P-FLIGHT,XB(D)::R(A)
      • S(b);::S(C)
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