MESON Chess Problem Database

Problem Display
PID: 4527 (1b6/8/bQ2N3/3pkpPn/8/8/3PnN2/K7 w - - 0 1)

Dobrusky, Jan

Humoristicke listy, 1875

1b6/8/bQ2N3/3pkpPn/8/8/3PnN2/K7

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qe3#
    • 1...Sc1
      • 2.d4#
    • 1...Sg1
      • 2.d4#
    • 1...Sc3
      • 2.d4#
    • 1...Seg3
      • 2.d4#
    • 1...Sef4
      • 2.d4#
  • Tries
    • 1.Sd3+?
      • 1...Ke4
        • 2.Qe3#
      • 1...Bxd3!
    • 1.Sg4+?
      • 1...Ke4
        • 2.Qe3#
      • 1...fxg4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Sexf4
        • 2.d4#
      • 1...Shxf4
        • 2.Qf6#
      • 1...Bd6
        • 2.Qe3#
      • 1...d4
        • 2.Qxb8#

There are these versions: 93584

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(g);SBLOCK::QAR2(E)
    • S(a);N_GUARD::P(B)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • B(f);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • P(d);XS(C)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(c);S_FLIGHT,XS(F)::QAB1(E)
      • S(a);N_GUARD,SBLOCK,XS(F)::P(B)
      • S(e);N_GUARD,SBLOCK,XS(F)::QAB1(E)
      • B(g);SBLOCK::QAR2(E)
      • P(b);SBLOCK::QAB(E),XB(g)
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