MESON Chess Problem Database

Problem Display
PID: 81300 (5N2/8/Q1p2R2/4nbnr/4Nk1p/5P2/3P3P/1B3R1K w - - 0 1)

Pituk, Alexander

Moment, 1998

5N2/8/Q1p2R2/4nbnr/4Nk1p/5P2/3P3P/1B3R1K

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Sg6#
    • 1...Sc4
      • 2.Sg6#
    • 1...Sg4
      • 2.Sg6#
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sd7
      • 2.Sg6#
    • 1...Sef7
      • 2.Sg6#
    • 1...Sh3
      • 2.Se6#
    • 1...Sxe4
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sgf7
      • 2.Se6#
    • 1...Sh7
      • 2.Se6#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Sexf3
        • 2.Qxf5#
      • 1...Sxe4
        • 2.Se6#
      • 1...Sd7
        • 2.Sg6#
      • 1...Sh3
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sgf7
        • 2.Se6#
      • 1...Sh7
        • 2.Se6#
      • 1...Sgxf3!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Rxf5#
      • 1...Kxf3
        • 2.Rxf5#
      • 1...Sgxf3
        • 2.Se6#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sh3
        • 2.Sxh3#
      • 1...Se4
        • 2.Sh3#
      • 1...Se6
        • 2.Sh3#
      • 1...Sgf7
        • 2.Sh3#
      • 1...Sh7
        • 2.Sh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::S(J)
    • S(c);N_GUARD::S(J),XS(c)
    • S(e);N_GUARD::S(J)
    • S(e);N_GUARD,XS(G)::S(J)
    • S(e);N_GUARD::S(J),XS(e)
  • Tries
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);P_SPINS(c),XP(F)::QAR1(H),XB(d)
        • S(e);N_GUARD,XS(G)::S(J)
        • S(c);N_GUARD::S(J)
        • S(e);N_GUARD::S(J)
        • S(e);N_GUARD::S(J),XS(e)
      • Refutation
        • S(e);P_SPINS(e),XP(F)
  • Actual
    • S(G);
    • Threat
      • R1(I),XB(d)
    • Vars
      • K(a);P-FLIGHT,XP(F)::R(I),XB(d)
      • S(e);N_GUARD,SBLOCK,XP(F)::S(J)
      • S(c);N_GUARD::S(G),XS(c)
      • S(e);N_GUARD::S(G),XS(e)
      • S(e);N_GUARD::S(G)
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