MESON Chess Problem Database

Problem Display
PID: 157843 (1K4Bb/4NR2/3P4/2B1k1p1/6p1/5PP1/3P4/1b6 w - - 0 1)

Giegold, Fritz Emil

Hofer Anzeiger, 1920

1K4Bb/4NR2/3P4/2B1k1p1/6p1/5PP1/3P4/1b6

#2

9 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Rf5#
    • 1...Bf5
      • 2.Rxf5#
  • Tries
    • 1.Rf4?
      • threat
        • 2.Sc6#
        • 2.d4#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Bd3
        • 2.Sc6#
      • 1...Be4
        • 2.d4#
      • 1...gxf4!
    • 1.Rf8?
      • threat
        • 2.Sc6#
        • 2.d4#
      • 1...Bd3
        • 2.Sc6#
      • 1...Be4
        • 2.d4#
      • 1...Bf6
        • 2.d4#
      • 1...gxf3!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Re6#
      • 1...Kxf6
        • 2.Bd4#
      • 1...Bxf6
        • 2.d4#
      • 1...Ba2
        • 2.Rf5#
      • 1...Bf5
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::R1(G)
    • B(a);N_GUARD::R1(G),XB(a)
  • Tries
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::R1(G),XB(a)
        • B(a);::S(F)
        • B(a);::P(A)
      • Refutation
        • P(d);XR(G)
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::S(F)
        • B(a);::P(A)
        • B(e);::P(A)
      • Refutation
        • P(b);XP(B)
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • K(c);S_FLIGHT,XR(G)::B(D)
      • B(e);SBLOCK,XR(G)::P(A)
      • B(a);N_GUARD::R1(G)
      • B(a);N_GUARD::R1(G),XB(a)
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