MESON Chess Problem Database

Problem Display
PID: 96297 (K7/8/1ppB1p2/n6p/2Pk3r/N5PQ/3P4/1Bn3br w - - 0 1)

Brabec, Juraj

Probleemblad, 1963

K7/8/1ppB1p2/n6p/2Pk3r/N5PQ/3P4/1Bn3br

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Qxh4#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qxf6#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Re4
        • 2.Sc2#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Bf2
        • 2.Qxf2#
      • 1...f5!
    • 1.Qe6?
      • threat
        • 2.Qxf6#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Re4
        • 2.Qxe4#
      • 1...Sd3
        • 2.Sc2#
      • 1...f5
        • 2.Qe5#
        • 2.Qf6#
      • 1...Rf4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxf6#
      • 1...Sxc4
        • 2.Sc2#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Sd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(b);S_CUTR(c)::QAR(E),XR(e)
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAB(E),XP(j)
      • Vars
        • S(f);OGATE,XP(F)::QAR1(E),XS(f)
        • S(a);N_GUARD::QAR1(E),XS(a)
        • R(e);SBLOCK::S(C)
        • R(e);N_GUARD::QAR2(E),XR(e)
        • B(b);N_GUARD::QAB(E),XB(b)
      • Refutation
        • P(j);
    • Try
      • Q(E);
      • Threat
        • QAB(E),XP(j)
      • Vars
        • S(f);OGATE,XP(F)::QAR1(E),XS(f)
        • R(e);N_GUARD::QAR1(E),XR(e)
        • S(a);SBLOCK::S(C)
      • Refutation
        • R(e);
  • Actual
    • Q(E);
    • Threat
      • QAB(E),XP(j)
    • Vars
      • S(f);SBLOCK,XP(F)::S(C)
      • R(e);N_GUARD::QAR1(E),XR(e)
      • R(e);N_GUARD::QAR2(E),XR(e)
      • S(a);N_GUARD::QAR1(E),XS(a)
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