MESON Chess Problem Database

Problem Display
PID: 146642 (4QBK1/4P3/1P1N1N2/R1npkpnR/3pbp2/3p1p2/3P1P2/8 w - - 0 1)

Gvozdjak, Peter

Hirschenson, Aaron

Pat a Mat, 2012

4QBK1/4P3/1P1N1N2/R1npkpnR/3pbp2/3p1p2/3P1P2/8

#2

11 + 10

56 The Problemist 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4+?
      • 1...Ke6
        • 2.Qc6#
      • 1...Kxf6
        • 2.Rh6#
      • 1...dxc4!
    • 1.Sf7+?
      • 1...Ke6
        • 2.Qc6#
      • 1...Kxf6
        • 2.Rh6#
      • 1...Sxf7!
    • 1.Qc6?
      • 1...Ke6
        • 2.Sc4#
        • 2.Sf7#
      • 1...Sb3
        • 2.Sc4#
      • 1...Sa4
        • 2.Sc4#
      • 1...Sa6
        • 2.Sc4#
      • 1...Sce6
        • 2.Sd7#
      • 1...Sb7
        • 2.Sc4#
      • 1...Sd7
        • 2.Sc4#
      • 1...Sh3
        • 2.Sf7#
      • 1...Sge6
        • 2.Sg4#
      • 1...Sf7
        • 2.Sxf7#
      • 1...Sh7
        • 2.Sf7#
      • 1...Kxf6!
  • Keys
    • 1.Qg6!
      • 1...Kxd6
        • 2.e8Q#
      • 1...Ke6
        • 2.e8Q#
        • 2.e8R#
      • 1...Sb3
        • 2.Sd7#
      • 1...Sa4
        • 2.Sd7#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sce6
        • 2.Sc4#
      • 1...Sb7
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Sh3
        • 2.Sg4#
      • 1...Sge6
        • 2.Sf7#
      • 1...Sf7
        • 2.Sg4#
      • 1...Sh7
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(h);P-FLIGHT::QAR2(I)
        • K(h);S_FLIGHT,XS(G)::R(D)
      • Refutation
        • P(g);P_SPINS(f),XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • K(h);P-FLIGHT::QAR2(I)
        • K(h);S_FLIGHT,XS(G)::R(D)
      • Refutation
        • S(j);P_SPINP(i),XS(F)
    • Try
      • Q(I);
      • Vars
        • S(f);P_SPINP(g)::S(F)
        • S(f);N_GUARD,P_SPINP(g),SBLOCK::S(G)
        • S(j);N_GUARD,P_SPINP(i)::S(F)
        • S(j);P_SPINP(i),SBLOCK::S(G)
        • S(j);N_GUARD,P_SPINP(i)::S(F),XS(j)
      • Refutation
        • K(h);S_FLIGHT,XS(G)
  • Actual
    • Q(I);
    • Vars
      • K(h);S_FLIGHT,XS(F)::P=Q
      • K(h);P-FLIGHT::P=Q
      • S(f);N_GUARD,P_SPINP(g)::S(G)
      • S(f);P_SPINP(g),SBLOCK::S(F)
      • S(f);N_GUARD,P_SPINP(g)::S(G),XS(f)
      • S(j);P_SPINP(i)::S(G)
      • S(j);N_GUARD,P_SPINP(i),SBLOCK::S(F)
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