MESON Chess Problem Database

Problem Display
PID: 117131 (2N5/P1k1P2K/1r3P2/PR2nQ2/2n1BN2/8/7B/1r6 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

La Domenica dei Giuochi, 1933

2N5/P1k1P2K/1r3P2/PR2nQ2/2n1BN2/8/7B/1r6

#2

11 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sd5#
      • 2.a8S#
    • 1...Rd6
      • 2.a8S#
    • 1...Rxf6
      • 2.a8S#
    • 1...Rb8
      • 2.axb8Q#
      • 2.axb8B#
    • 1...Sb2
      • 2.axb6#
    • 1...Sd2
      • 2.axb6#
    • 1...Sa3
      • 2.axb6#
    • 1...Se3
      • 2.axb6#
    • 1...Sd6
      • 2.axb6#
  • Keys
    • 1.Sd6!
      • threat
        • 2.Se8#
      • 1...Kxd6
        • 2.e8S#
      • 1...Rxd6
        • 2.a8S#
      • 1...Sxd6
        • 2.axb6#
      • 1...Rb8
        • 2.axb8Q#
        • 2.axb8B#
      • 1...Sc6
        • 2.Sd5#
      • 1...Sd7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(d);::P=S
    • R(d);XP(G)::P=S
    • R(d);OGATE::PXR(d)=Q
    • S(b);N_GUARD::P(D),XR(d)
  • Actual
    • S(K);
    • Threat
      • S(K)
    • Vars
      • K(e);S_FLIGHT,XS(K)::P=S
      • R(d);SBLOCK,XS(K)::P=S
      • S(b);N_GUARD,SBLOCK,XS(K)::P(D),XR(d)
      • R(d);OGATE::PXR(d)=Q
      • S(c);SBLOCK::S(C)
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