MESON Chess Problem Database

Problem Display
PID: 151188 (K5Q1/3p3n/3P4/2p5/4k3/n3p2p/4PR2/B7 w - - 0 1)

Lowen, HG

Hampstead and Highgate Express, 1896

(First published on Sat Oct 10 1896)

K5Q1/3p3n/3P4/2p5/4k3/n3p2p/4PR2/B7

#2

6 + 7

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...h2
      • 2.Qg2#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Rf4#
        • 2.Qf3#
        • 2.Qf5#
      • 1...exf2
        • 2.Qf3#
      • 1...Sg5
        • 2.Rf4#
        • 2.Qf5#
      • 1...Sf6!
    • 1.Qg3?
      • threat
        • 2.Qe5#
        • 2.Qf3#
      • 1...Sc4
        • 2.Qf3#
      • 1...Sg5
        • 2.Qe5#
      • 1...Kd5!
    • 1.Qg5?
      • threat
        • 2.Rf4#
        • 2.Qe5#
        • 2.Qf5#
      • 1...exf2
        • 2.Qe5#
      • 1...Sc4
        • 2.Rf4#
        • 2.Qf5#
      • 1...Sxg5!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qd3#
        • 2.Qb7#
      • 1...exf2
        • 2.Qf3#
      • 1...c4
        • 2.Qb7#
      • 1...Sb5
        • 2.Qd3#
      • 1...Sf6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAR2(F)
    • S(a);N_GUARD::QAR2(F),XS(a)
    • P(c);N_GUARD::QAB(F)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);XR(C)::QAB1(F)
      • Refutation
        • S(g);
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB1(F)
        • S(g);::QAR1(F)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);XR(C)::QAR1(F)
      • Refutation
        • S(g);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);OGATE,XR(C)::QAB1(F)
      • P(e);::QAB(F)
      • S(a);::QAB1(F)
      • S(g);::QAB1(F)
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