MESON Chess Problem Database

Problem Display
PID: 222888 (7b/1R3Pk1/5N1p/5p1r/8/KB6/8/8 w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

Preston Guardian, 1880

(First published on Wed Feb 11 1880)

7b/1R3Pk1/5N1p/5p1r/8/KB6/8/8

#2

5 + 5

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Tries
    • 1.f8Q+?
      • 1...Kxf8
        • 2.Rf7#
      • 1...Kg6!
    • 1.f8S+?
      • 1...Kxf8
        • 2.Rf7#
      • 1...Kxf6!
    • 1.f8R+?
      • 1...Kxf8
        • 2.Rf7#
      • 1...Kg6!
  • Keys
    • 1.Sh7!
      • threat
        • 2.f8S#
      • 1...Kg6
        • 2.f8S#
      • 1...Kxh7
        • 2.f8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • K(d);S_FLIGHT,XQ(E)::R1(D)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • P(E);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(E)::R1(D)
      • Refutation
        • K(d);S_FLIGHT,XS(C)
    • Try
      • P(E);CHECK
      • Vars
        • K(d);S_FLIGHT,XR(E)::R1(D)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • P=S
    • Vars
      • K(d);P-FLIGHT::P=S
      • K(d);P-FLIGHT,XS(C)::P=S
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