MESON Chess Problem Database

Problem Display
PID: 158167 (3K4/8/3Q4/2R2Pkp/4p2r/4N2r/8/8 w - - 0 1)

Hickox, EB

British Chess Magazine 13. Ty., 1906-1907

3K4/8/3Q4/2R2Pkp/4p2r/4N2r/8/8

#2

5 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sg2?
      • threat
        • 2.Qg6#
      • 1...Kg4
        • 2.Qf4#
      • 1...Rd3!
    • 1.Qe7+?
      • 1...Kh6
        • 2.Rc6#
      • 1...Kf4!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qg6#
      • 1...Kg4
        • 2.Qf4#
      • 1...Kxf5
        • 2.Se3#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR1(D)
      • Vars
        • K(d);P-FLIGHT::QAR1(D)
      • Refutation
        • R(a);P_PINQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(d);S_FLIGHT::R(B)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAR1(D)
    • Vars
      • K(d);P-FLIGHT::QAR1(D)
      • K(d);P-FLIGHT,XP(C)::R(B)+S(A),DCHECK
      • R(c);N_GUARD::QAB1(D),XR(c)
      • R(c);SBLOCK::QAB1(D)
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