MESON Chess Problem Database

Problem Display
PID: 224778 (1B2Nn2/3n4/6Q1/3Bp3/2pkP3/2R5/1K4b1/8 w - - 0 1)

Fothergill, Percival Guy Laugham (PGLF)

The Field, 1895

(First published on Sat Sep 14 1895)

1B2Nn2/3n4/6Q1/3Bp3/2pkP3/2R5/1K4b1/8

#2

7 + 6

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qg1#
    • 1...Bh1
      • 2.Qg1#
    • 1...Bf3
      • 2.Qg1#
    • 1...Bh3
      • 2.Qg1#
    • 1...Sb6
      • 2.Qxb6#
    • 1...Sf6
      • 2.Ba7#
    • 1...Sxb8
      • 2.Qb6#
  • Tries
    • 1.Ba7+?
      • 1...Sb6
        • 2.Bxb6#
        • 2.Qxb6#
      • 1...Sc5!
    • 1.Qa6?
      • threat
        • 2.Qxc4#
      • 1...Kc5
        • 2.Rxc4#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Bf1!
    • 1.Qd6?
      • threat
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sf6
        • 2.Ba7#
        • 2.Qb6#
      • 1...Bxe4!
  • Keys
    • 1.Sc7!
      • 1...Kc5
        • 2.Rxc4#
      • 1...Bxe4
        • 2.Qg1#
      • 1...Sxb8
        • 2.Qb6#
      • 1...Sxg6
        • 2.Se6#
      • 1...Bf1
        • 2.Qg1#
      • 1...Bh1
        • 2.Qg1#
      • 1...Bf3
        • 2.Qg1#
      • 1...Bh3
        • 2.Qg1#
      • 1...Sc5
        • 2.Sb5#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sf6
        • 2.Ba7#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sh7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::QAB(E)
    • S(e);N_GUARD::QAB(E),XS(e)
    • S(e);N_GUARD::B(F)
    • S(e);N_GUARD,XB(F)::QAB(E)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::R1(B),XP(b)
        • S(e);N_GUARD::QAB(E),XS(e)
      • Refutation
        • B(a);
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • S(e);N_GUARD::QAB(E),XS(e)
      • Refutation
        • B(a);XP(C)
  • Actual
    • S(G);
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::R1(B),XP(b)
      • B(a);OGATE,XP(C)::QAB(E)
      • S(e);N_GUARD,XB(F)::QAB(E)
      • S(f);N_GUARD,XQ(E)::S(G)
      • B(a);OGATE::QAB(E)
      • S(e);SBLOCK::S(G)
      • S(e);N_GUARD::QAB(E),XS(e)
      • S(e);N_GUARD::B(F)
      • S(f);N_GUARD::S(G),XS(f)
      • S(f);N_GUARD::S(G)
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