MESON Chess Problem Database

Problem Display
PID: 144744 (6K1/n4P2/2b3p1/1p2N3/4k1p1/2Q5/6P1/3R4 w - - 0 1)

Challenger, Alfred Clement

Hampstead and Highgate Express, 1895

(First published on Sat Jul 13 1895)

6K1/n4P2/2b3p1/1p2N3/4k1p1/2Q5/6P1/3R4

#2

6 + 6

14867 BCPS Library 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • threat
        • 2.Qe5#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...gxf3!
    • 1.Sc4?
      • threat
        • 2.Qe5#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...bxc4!
    • 1.Sxc6?
      • threat
        • 2.Qe5#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Sxc6!
    • 1.Sd7?
      • threat
        • 2.Qe5#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Bxd7!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qe5#
      • 1...Ke3
        • 2.Re1#
      • 1...Kd5
        • 2.Sc5#
      • 1...Kf5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • P(b);XS(D)
    • Try
      • S(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • P(c);XS(D)
    • Try
      • S(D);XB(d)
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • S(f);XS(D)
    • Try
      • S(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • B(d);XS(D)
  • Actual
    • S(D);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::R(A)
      • K(a);S_FLIGHT::R(A)+S(D)
      • K(a);S_FLIGHT::QAR1(C)
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