MESON Chess Problem Database

Problem Display
PID: 235763 (Q6B/P6p/4p1p1/3p4/p1N5/p2kpP2/2R5/2K5 w - - 0 1)

Fothergill, Percival Guy Laugham (PGLF)

The Field, 1901

(First published on Sat Aug 10 1901)

Q6B/P6p/4p1p1/3p4/p1N5/p2kpP2/2R5/2K5

#2

7 + 8

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...a2
      • 2.Sb2#
    • 1...e2
      • 2.Rc3#
    • 1...dxc4
      • 2.Qe4#
      • 2.Qd8#
    • 1...d4
      • 2.Se5#
      • 2.Qe4#
    • 1...e5
      • 2.Qxd5#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Rc3#
      • 1...e5
        • 2.Qxd5#
      • 1...d4
        • 2.Se5#
        • 2.Qe4#
      • 1...e2+!
    • 1.Ba1?
      • threat
        • 2.Se5#
      • 1...dxc4
        • 2.Qe4#
        • 2.Qd8#
      • 1...e5
        • 2.Sxe5#
        • 2.Qxd5#
      • 1...e2!
    • 1.Qf8?
      • threat
        • 2.Qxa3#
      • 1...dxc4
        • 2.Qd6#
        • 2.Qd8#
      • 1...a2
        • 2.Sb2#
        • 2.Qa3#
      • 1...e5!
  • Keys
    • 1.Qg8!
      • 1...dxc4
        • 2.Qd8#
      • 1...e5
        • 2.Qxd5#
      • 1...g5
        • 2.Qxh7#
      • 1...a2
        • 2.Sb2#
      • 1...e2
        • 2.Rc3#
      • 1...d4
        • 2.Se5#
      • 1...h5
        • 2.Qxg6#
      • 1...h6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::S(D)
    • P(c);SBLOCK::R1(B)
    • P(f);N_GUARD::QAR2(F),XP(e)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • R1(B)
      • Vars
        • P(f);N_GUARD::QAR2(F),XP(e)
      • Refutation
        • P(c);CHECK
    • Try
      • B(G);
      • Threat
        • S(D)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Threat
        • QAR(F),XP(a)
      • Refutation
        • P(f);
  • Actual
    • Q(F);
    • Vars
      • P(e);OGATEB,XS(D)::QAR(F)
      • P(f);OGATE::QAR2(F),XP(e)
      • P(g);OGATEB::QAB(F),XP(h)
      • P(a);N_GUARD::S(D)
      • P(c);SBLOCK::R1(B)
      • P(e);SBLOCK::S(D)
      • P(h);N_GUARD::QAB(F),XP(g)
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