MESON Chess Problem Database

Problem Display
PID: 151033 (8/8/2p5/5p2/3k4/1KNNp3/8/3Q4 w - - 0 1)

Fothergill, Percival Guy Laugham (PGLF)

Hampstead and Highgate Express, 1896

(First published on Sat Jul 18 1896)

8/8/2p5/5p2/3k4/1KNNp3/8/3Q4

#2

4 + 4

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sb2+?
      • 1...Kc5
        • 2.Sba4#
      • 1...Ke5!
    • 1.Se5+?
      • 1...Kc5
        • 2.Sd7#
      • 1...Kxe5!
    • 1.Qg4+?
      • 1...Kxd3
        • 2.Qd1#
      • 1...f4
        • 2.Qd7#
      • 1...fxg4!
    • 1.Qh1?
      • 1...Kxd3
        • 2.Qd1#
      • 1...f4
        • 2.Qe4#
      • 1...c5
        • 2.Qd5#
      • 1...e2!
  • Keys
    • 1.Qf3!
      • 1...Kxd3
        • 2.Qd1#
      • 1...f4
        • 2.Qe4#
      • 1...e2
        • 2.Sxe2#
      • 1...c5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
      • Refutation
        • K(b);S_FLIGHT,XS(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(D)::QAR2(A)
        • P(c);OGATE,P_SPINP(c)::QAR(A)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(D)::QAR2(A)
        • P(c);N_GUARD::QAR1(A)
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINP(a),XS(D)::QAR2(A)
      • P(c);N_GUARD::QAR1(A)
      • P(a);::S(C),XP(a)
      • P(d);N_GUARD::QAR1(A)
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