MESON Chess Problem Database

Problem Display
PID: 11885 (2Q3B1/nP2pP2/3pP3/1p1k4/1P4N1/2P3N1/2K5/8 w - - 0 1)

Hoffmann, Fritz

Gottinger Tageblatt, 1973

2Q3B1/nP2pP2/3pP3/1p1k4/1P4N1/2P3N1/2K5/8

#2

10 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Kxc4
        • 2.Se3#
      • 1...bxc4!
    • 1.Qc5+?
      • 1...Kxe6
        • 2.Qf5#
        • 2.f8S#
      • 1...dxc5!
    • 1.b8Q?
      • 1...Sc6
        • 2.Qxb5#
      • 1...Sxc8!
  • Keys
    • 1.Qa8!
      • 1...Kc4
        • 2.Se3#
      • 1...Kc6
        • 2.b8Q#
      • 1...Kxe6
        • 2.f8S#
      • 1...Sc6
        • 2.Qa2#
      • 1...Sc8
        • 2.bxc8Q#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);S_FLIGHT,XQ(I)::S(E)
      • Refutation
        • P(a);XQ(I)
    • Try
      • Q(I);CHECK
      • Refutation
        • P(c);XQ(I)
    • Try
      • P(G);
      • Vars
        • S(d);N_GUARD::QAR2(G),XP(a)
      • Refutation
        • S(d);XQ(I)
  • Actual
    • Q(I);
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT::P=Q
      • K(b);S_FLIGHT,XP(F)::P=S
      • S(d);OGATE,SBLOCK::QAB(I)
      • S(d);OGATE::PXS(d)=Q
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