MESON Chess Problem Database

Problem Display
PID: 129743 (Q7/1n2K3/2N5/3b1Np1/4k1p1/6P1/3PB3/8 w - - 0 1)

Skalik, Frantisek

Neues Ilustrierte Blatt, 1904

Q7/1n2K3/2N5/3b1Np1/4k1p1/6P1/3PB3/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa5
      • 2.Sd6#
    • 1...Sc5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sd8
      • 2.Sd6#
  • Tries
    • 1.Qh8?
      • threat
        • 2.Qe5#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Bxc6!
  • Keys
    • 1.Qa5!
      • 1...Kxf5
        • 2.Bd3#
      • 1...Bxc6
        • 2.d3#
      • 1...Sxa5
        • 2.Sd6#
      • 1...Ba2
        • 2.Qe5#
        • 2.d3#
      • 1...Bb3
        • 2.Qe5#
        • 2.d3#
      • 1...Bc4
        • 2.Qe5#
      • 1...Be6
        • 2.Qe5#
        • 2.d3#
      • 1...Bf7
        • 2.Qe5#
        • 2.d3#
      • 1...Bg8
        • 2.Qe5#
        • 2.d3#
      • 1...Sc5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD::S(D)
    • S(e);N_GUARD::S(D),XS(e)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(G)
      • Refutation
        • B(c);XS(E)
  • Actual
    • Q(G);
    • Vars
      • K(a);P_SPINB(c),S_FLIGHT,XS(D)::B(B)
      • B(c);XS(E)::P(A)
      • S(e);N_GUARD,XQ(G)::S(D)
      • B(c);OGATE::QAR1(G)
      • S(e);N_GUARD::S(D)
      • S(e);N_GUARD::S(D),XS(e)
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