MESON Chess Problem Database

Problem Display
PID: 147794 (6N1/2N1pn2/3p1pn1/R2p1kpK/5b2/3P4/8/Q7 w - - 0 1)

Pimenov, Sergey Ivanovich

Pimenov, Vitaly Ivanovich

Gazette de Liege, 1930

(First published on Wed Feb 19 1930)

6N1/2N1pn2/3p1pn1/R2p1kpK/5b2/3P4/8/Q7

#2

6 + 9

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Sh4
      • 2.Sxe7#
    • 1...Sge5
      • 2.Sxe7#
    • 1...Sf8
      • 2.Sxe7#
    • 1...Sgh8
      • 2.Sxe7#
    • 1...Sfe5
      • 2.Sh6#
    • 1...Sh6
      • 2.Sxh6#
    • 1...Sd8
      • 2.Sh6#
    • 1...Sfh8
      • 2.Sh6#
    • 1...e6
      • 2.Qxf6#
  • Tries
    • 1.Qd4?
      • threat
        • 2.Qe4#
      • 1...Be5
        • 2.Qg4#
      • 1...Sge5
        • 2.Sxe7#
      • 1...Sfe5
        • 2.Sh6#
      • 1...e5!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Rxd5#
        • 2.Qe4#
      • 1...Be5
        • 2.Qg4#
      • 1...Sge5
        • 2.Sxe7#
      • 1...Sfe5
        • 2.Sh6#
      • 1...e5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • S(g);N_GUARD::S(F),XP(h)
    • S(g);N_GUARD,N_SPINP(b)::S(F),XP(h)
    • S(i);N_GUARD,N_SPINP(b)::S(F)
    • S(i);N_GUARD::S(F),XS(i)
    • S(i);N_GUARD::S(F)
    • P(h);N_GUARD::QAR1(A),XP(f)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • B(a);N_SPINP(b),OGATE,SBLOCK::QAB1(A)
        • S(g);N_GUARD,N_SPINP(b)::S(F),XP(h)
        • S(i);N_GUARD,N_SPINP(b)::S(F)
      • Refutation
        • P(h);N_SPINP(b)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • B(a);N_SPINP(b),OGATE,SBLOCK::QAB1(A)
      • S(g);N_GUARD,N_SPINP(b),SBLOCK::S(F),XP(h)
      • S(i);N_GUARD,N_SPINP(b),SBLOCK::S(F)
      • P(h);N_GUARD,N_SPINP(b),SBLOCK::QAB(A)
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