MESON Chess Problem Database

Problem Display
PID: 121386 (5Q2/6p1/8/1K1N1P2/1N1k1p2/1p3p2/3p4/8 w - - 0 1)

Brada, Jaroslav

Tyden rozhlasu, 1941

5Q2/6p1/8/1K1N1P2/1N1k1p2/1p3p2/3p4/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc5+?
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke5!
    • 1.Qd6?
      • threat
        • 2.Qxf4#
      • 1...Ke4
        • 2.Qxf4#
      • 1...g5!
    • 1.Qb8?
      • threat
        • 2.Qxf4#
      • 1...Ke4
        • 2.Qxf4#
      • 1...g5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qc5#
      • 1...Kxc3
        • 2.Qxg7#
      • 1...Ke3
        • 2.Qc5#
      • 1...Ke5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);P-FLIGHT::S(C)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • QAR2(E),XP(e)
      • Vars
        • K(d);P-FLIGHT::QAR1(E),XP(e)
      • Refutation
        • P(f);
    • Try
      • Q(E);
      • Threat
        • QAR2(E),XP(e)
      • Vars
        • K(d);P-FLIGHT::QAR1(E),XP(e)
      • Refutation
        • P(f);
  • Actual
    • S(C);
    • Threat
      • QAB1(E)
    • Vars
      • K(d);S_FLIGHT,XS(C)::QAB(E),XP(f)
      • K(d);S_FLIGHT::QAB(E)
      • K(d);S_FLIGHT::S(A)
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