MESON Chess Problem Database

Problem Display
PID: 84687 (n2nNB2/1p3Pp1/1p3p2/3k1p1B/5Pp1/3K4/1N6/2R1R3 w - - 0 1)

Fillery, William Edmund Frank

Canadian Chess Chat, 1980

n2nNB2/1p3Pp1/1p3p2/3k1p1B/5Pp1/3K4/1N6/2R1R3

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sxf7
      • 2.Bxf7#
    • 1...g3
      • 2.Bf3#
    • 1...b5
      • 2.Rc5#
    • 1...g5
      • 2.Sxf6#
    • 1...g6
      • 2.Sxf6#
  • Tries
    • 1.Sa4?
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Sc7
        • 2.Sxb6#
        • 2.Sxc7#
      • 1...Sc6
        • 2.Sc3#
      • 1...g3
        • 2.Bf3#
      • 1...b5
        • 2.Rc5#
      • 1...g5
        • 2.Sxf6#
      • 1...g6
        • 2.Sxf6#
      • 1...Se6!
  • Keys
    • 1.Sd1!
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sc6
        • 2.Sc3#
      • 1...Se6
        • 2.Se3#
      • 1...g3
        • 2.Bf3#
      • 1...b5
        • 2.Rc5#
      • 1...g5
        • 2.Sxf6#
      • 1...g6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::S(H),XS(h)
    • S(i);OGATE,XP(G)::B(F),XS(i)
    • P(a);OGATE::B(F)
    • P(d);N_GUARD::R1(A)
    • P(g);N_GUARD::S(H),XP(e)
  • Tries
    • Try
      • S(C);
      • Vars
        • S(i);OGATE,XP(G)::B(F),XS(i)
        • S(i);SBLOCK::S(C)
        • P(a);OGATE::B(F)
        • P(d);N_GUARD::R1(A)
        • P(g);N_GUARD::S(H),XP(e)
      • Refutation
        • S(i);
  • Actual
    • S(C);
    • Vars
      • S(i);OGATE,XP(G)::B(F),XS(i)
      • S(h);N_GUARD::S(H),XS(h)
      • S(i);SBLOCK::S(C)
      • P(a);OGATE::B(F)
      • P(d);N_GUARD::R1(A)
      • P(g);N_GUARD::S(H),XP(e)
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