MESON Chess Problem Database

Problem Display
PID: 217738 (1K6/8/Q7/1R6/3R4/3N2p1/3B2pb/5kqb w - - 0 1)

Sparke, Arthur M

British Chess Magazine, 1920

1K6/8/Q7/1R6/3R4/3N2p1/3B2pb/5kqb

#2

6 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Rf5+?
      • 1...Ke2
        • 2.Sb2#
        • 2.Sf2#
      • 1...Qf2!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Rf5#
      • 1...gxf2+
        • 2.Re5#
      • 1...Ke2
        • 2.Rf5#
      • 1...Kxf2
        • 2.Rf5#
      • 1...Qxf2
        • 2.Rb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • Q(b);P_SPINQ(b)
  • Actual
    • S(B);
    • Threat
      • QAB(E)+R(D)
    • Vars
      • P(f);CHECK,SBLOCK,XS(B)::QAB(E)+R(D)
      • K(a);S_FLIGHT::QAB(E)+R(D)
      • K(a);P-FLIGHT,XS(B)::R(D)
      • Q(b);SBLOCK,XS(B)::QAB(E)+R(D),DCHECK
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