MESON Chess Problem Database

Problem Display
PID: 213228 (8/8/QPp5/b7/kPn5/N7/K7/8 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Land og Folk, 1971

8/8/QPp5/b7/kPn5/N7/K7/8

#2

5 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb4
      • 2.Qxc4#
    • 1...Sb2
      • 2.Qxa5#
    • 1...Sd2
      • 2.Qxa5#
    • 1...Sxa3
      • 2.Qxa5#
    • 1...Se3
      • 2.Qxa5#
    • 1...Se5
      • 2.Qxa5#
    • 1...Sxb6
      • 2.Qxa5#
    • 1...Sd6
      • 2.Qxa5#
    • 1...c5
      • 2.Qb5#
  • Tries
    • 1.Sc2?
      • 1...Sxb6
        • 2.Qxa5#
      • 1...Sb2
        • 2.Qxa5#
      • 1...Sd2
        • 2.Qxa5#
      • 1...Sa3
        • 2.Qxa5#
      • 1...Se3
        • 2.Qxa5#
      • 1...Se5
        • 2.Qxa5#
      • 1...Sd6
        • 2.Qxa5#
      • 1...c5!
  • Keys
    • 1.b7!
      • 1...Kxb4
        • 2.Qxc4#
      • 1...Sxa3
        • 2.Qxa5#
      • 1...c5
        • 2.Qb5#
      • 1...Sb2
        • 2.Qxa5#
      • 1...Sd2
        • 2.Qxa5#
      • 1...Se3
        • 2.Qxa5#
      • 1...Se5
        • 2.Qxa5#
      • 1...Sb6
        • 2.Qxa5#
      • 1...Sd6
        • 2.Qxa5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(c),OGATEB,P-FLIGHT,XP(C)::QAR1(D),XS(b)
    • S(b);N_GUARD::QAR1(D),XB(c)
    • S(b);N_GUARD,XS(B)::QAR1(D),XB(c)
    • S(b);N_GUARD,XP(E)::QAR1(D),XB(c)
    • P(d);N_GUARD::QAB1(D)
  • Tries
    • Try
      • S(B);
      • Vars
        • S(b);N_GUARD,XP(E)::QAR1(D),XB(c)
        • S(b);N_GUARD::QAR1(D),XB(c)
      • Refutation
        • P(d);
  • Actual
    • P(E);
    • Vars
      • K(a);N_SPINB(c),OGATEB,P-FLIGHT,XP(C)::QAR1(D),XS(b)
      • S(b);N_GUARD,XS(B)::QAR1(D),XB(c)
      • P(d);N_GUARD::QAB1(D)
      • S(b);N_GUARD::QAR1(D),XB(c)
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