MESON Chess Problem Database

Problem Display
PID: 5107 (bb1Q4/n4R1B/4p3/1p2k3/7K/3n4/3P4/8 w - - 0 1)

Billington, Thomas Henry

1st Prize, Birmingham Mercury, 1900

bb1Q4/n4R1B/4p3/1p2k3/7K/3n4/3P4/8

#2

5 + 7

119 Tidskrift for Schack 1909
3360 Simple Two-move Themes 1924
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.d4#
    • 1...Se1
      • 2.d4#
    • 1...Sb2
      • 2.d4#
    • 1...Sf2
      • 2.d4#
    • 1...Sb4
      • 2.d4#
    • 1...Sf4
      • 2.d4#
    • 1...Sc5
      • 2.d4#
  • Keys
    • 1.Rf4!
      • threat
        • 2.Qd4#
      • 1...Kxf4
        • 2.Qf6#
      • 1...Sxf4
        • 2.d4#
      • 1...Bd6
        • 2.Qg5#
      • 1...Be4
        • 2.Rxe4#
      • 1...Bd5
        • 2.Qxb8#
      • 1...Sc6
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • S(a);OGATE::P(A)
  • Actual
    • R(C);
    • Threat
      • QAB1(E)
    • Vars
      • K(c);S_FLIGHT,XR(C)::QAR2(E)
      • S(a);OGATE,SBLOCK,XR(C)::P(A)
      • B(g);SBLOCK::QAR2(E)
      • B(f);N_GUARD::R1(C),XB(f)
      • B(f);SBLOCK::QAB(E),XB(g)
      • S(e);S_CUTB(f)::R1(C)
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