MESON Chess Problem Database

Problem Display
PID: 196954 (4b1kr/3p1RPN/3K1R2/8/8/8/8/8 w - - 0 1)

Wainwright, Joseph CJ

Brisbane Courier, 1919

4b1kr/3p1RPN/3K1R2/8/8/8/8/8

#2

5 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rf8+?
      • 1...Kxh7
        • 2.gxh8Q#
      • 1...Kxg7!
  • Keys
    • 1.Rg6!
      • 1...Kxf7
        • 2.gxh8S#
      • 1...Kxh7
        • 2.g8Q#
      • 1...Rxh7
        • 2.Rf8#
      • 1...Bxf7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(E)::PXR(d)=Q
      • Refutation
        • K(c);P-FLIGHT,XP(D)
  • Actual
    • R(B);
    • Vars
      • K(c);S_FLIGHT,XR(C)::PXR(d)=S
      • K(c);OGATE,S_FLIGHT,XS(E)::P=Q
      • R(d);SBLOCK,XS(E)::R1(C)
      • B(b);SBLOCK,XR(C)::S(E)
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