MESON Chess Problem Database

Problem Display
PID: 18021 (2N3n1/3R4/n1R4b/4k2b/6p1/6P1/8/1Q3K2 w - - 0 1)

Clark, Cecil Henry Douglas

Time & Tide, 1952

2N3n1/3R4/n1R4b/4k2b/6p1/6P1/8/1Q3K2

#2

6 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6?
      • threat
        • 2.Sc4#
        • 2.Rd5#
      • 1...Sb4
        • 2.Sc4#
      • 1...Sc7
        • 2.Sc4#
      • 1...Sf6
        • 2.Sc4#
      • 1...Se7
        • 2.Sc4#
      • 1...Bf7!
    • 1.Se7?
      • threat
        • 2.Rd5#
        • 2.Qf5#
      • 1...Bg6
        • 2.Sxg6#
        • 2.Rd5#
      • 1...Bf7
        • 2.Qf5#
      • 1...Sb4
        • 2.Qf5#
      • 1...Sc7
        • 2.Qf5#
      • 1...Sf6
        • 2.Qf5#
      • 1...Sxe7!
    • 1.Rc5+?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
        • 2.Qb6#
      • 1...Sxc5!
    • 1.Re7+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kd5
        • 2.Qe4#
      • 1...Sxe7!
    • 1.Qe1+?
      • 1...Kf5
        • 2.Rd5#
      • 1...Be3!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sc4#
      • 1...Kd4
        • 2.Qe4#
      • 1...Kd5
        • 2.Qe4#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
      • 1...Bf7
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::S(F)
        • S(f);::S(F)
      • Refutation
        • B(c);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::QAR1(A)
        • S(d);::QAR1(A)
        • S(f);::QAR1(A)
      • Refutation
        • S(f);XS(F)
    • Try
      • R(D);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • S(d);XR(D)
    • Try
      • R(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • S(f);XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::R(E)
      • Refutation
        • B(e);P_SPINB(e)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • K(b);P-FLIGHT::QAB1(A)
      • B(c);N_GUARD::S(F),XB(c)
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