MESON Chess Problem Database

Problem Display
PID: 110176 (1K3b1n/p1p4Q/2pp1pp1/B1k5/5N2/nR1PP3/2p5/8 w - - 0 1)

Labai, Zoltan

Pedagogusok Lapja, 1979

1K3b1n/p1p4Q/2pp1pp1/B1k5/5N2/nR1PP3/2p5/8

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.d4#
  • Tries
    • 1.Rb4?
      • threat
        • 2.d4#
      • 1...Sb5
        • 2.Rc4#
      • 1...d5!
    • 1.Qg8?
      • threat
        • 2.d4#
      • 1...d5
        • 2.Qxf8#
      • 1...Sb5
        • 2.Qc4#
      • 1...Sf7!
    • 1.Qf7?
      • threat
        • 2.d4#
      • 1...d5
        • 2.Qxf8#
      • 1...Sb5
        • 2.Qc4#
      • 1...Sxf7!
  • Keys
    • 1.Qxc7!
      • threat
        • 2.Qxa7#
      • 1...Sc4
        • 2.d4#
      • 1...Sb5
        • 2.Bb4#
      • 1...d5
        • 2.Se6#
      • 1...a6
        • 2.Bb6#
        • 2.Qb6#
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::P(B)
  • Tries
    • Try
      • R(A);
      • Threat
        • P(B)
      • Vars
        • S(b);N_GUARD,SBLOCK::R1(A)
      • Refutation
        • P(e);
    • Try
      • Q(F);
      • Threat
        • P(B)
      • Vars
        • P(e);OGATEB::QAB(F),XB(j)
        • S(b);N_GUARD::QAR1(F)
      • Refutation
        • S(k);
    • Try
      • Q(F);
      • Threat
        • P(B)
      • Vars
        • P(e);OGATEB::QAB(F),XB(j)
        • S(b);N_GUARD::QAR1(F)
      • Refutation
        • S(k);XQ(F)
  • Actual
    • Q(F);P_PINP(d),XP(i)
    • Threat
      • QAB(F),XP(h)
    • Vars
      • S(b);SBLOCK::P(B)
      • S(b);SBLOCK::B(E)
      • P(e);SBLOCK::S(D)
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