MESON Chess Problem Database

Problem Display
PID: 226504 (4n3/1N1p1Q2/1B3rp1/1p1Pk1P1/4P1K1/8/8/4R3 w - - 0 1)

Fothergill, Percival Guy Laugham (PGLF)

The Field, 1896

(First published on Sat Aug 29 1896)

4n3/1N1p1Q2/1B3rp1/1p1Pk1P1/4P1K1/8/8/4R3

#2

8 + 6

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Qxe8#
      • 2.Qe7#
    • 1...Rf2
      • 2.Qxe8#
      • 2.Qe7#
    • 1...Rf3
      • 2.Qxe8#
      • 2.Qe7#
    • 1...Rf4+
      • 2.Qxf4#
    • 1...Rf5
      • 2.Qxe8#
      • 2.Qe7#
      • 2.exf5#
    • 1...Rc6
      • 2.Qf4#
    • 1...Rd6
      • 2.Qf4#
    • 1...Re6
      • 2.Qf4#
    • 1...Sd6
      • 2.Qxf6#
    • 1...Sc7
      • 2.Qxf6#
    • 1...Sg7
      • 2.Qxf6#
  • Keys
    • 1.Sd6!
      • 1...Rf4+
        • 2.Qxf4#
      • 1...Kxd6
        • 2.e5#
      • 1...Rxd6
        • 2.Qf4#
      • 1...Rxf7
        • 2.Sxf7#
      • 1...Sxd6
        • 2.Qxf6#
      • 1...Rf1
        • 2.Qe7#
      • 1...Rf2
        • 2.Qe7#
      • 1...Rf3
        • 2.Qe7#
      • 1...Rf5
        • 2.Qe7#
      • 1...Re6
        • 2.Qf4#
      • 1...Sc7
        • 2.Qxf6#
      • 1...Sg7
        • 2.Qxf6#
      • 1...b4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • R(c);CHECK,OGATE::QAB1(H),XR(c)
    • R(c);OGATE::QAB1(H)
    • S(f);N_GUARD::QAB1(H),XR(c)
  • Actual
    • S(G);
    • Vars
      • R(c);CHECK,OGATE::QAB1(H),XR(c)
      • K(b);OGATE,S_FLIGHT,XS(G)::P(B)
      • R(c);OGATE,SBLOCK,XS(G)::QAB1(H)
      • R(c);XQ(H)::S(G),XR(c)
      • S(f);N_GUARD,XS(G)::QAB1(H),XR(c)
      • R(c);N_GUARD::QAR2(H)
      • R(c);OGATE::QAB1(H)
      • S(f);N_GUARD::QAB1(H),XR(c)
      • P(a);N_GUARD::S(G)
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