MESON Chess Problem Database

Problem Display
PID: 259319 (4n3/5p2/4PN1R/KNP2k2/1p3PRp/1B3p1P/4nr2/4b1Q1 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Western Morning News, 1923

(First published on Sat Dec 1 1923)

4n3/5p2/4PN1R/KNP2k2/1p3PRp/1B3p1P/4nr2/4b1Q1

#2

11 + 9

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Qb1#
    • 1...Bc3
      • 2.Qb1#
    • 1...Sc1
      • 2.Sd4#
    • 1...Sxg1
      • 2.Sd4#
    • 1...Sc3
      • 2.Sd4#
    • 1...Sg3
      • 2.Sd4#
    • 1...Sd4
      • 2.Sxd4#
    • 1...Sxf4
      • 2.Rg5#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sxf6
      • 2.Sd6#
    • 1...Sc7
      • 2.Sd6#
    • 1...Sg7
      • 2.Sd6#
    • 1...fxe6
      • 2.Bc2#
  • Tries
    • 1.Qxe1?
      • threat
        • 2.Qb1#
      • 1...Sxf4
        • 2.Sd4#
        • 2.Qe4#
      • 1...Sxf6
        • 2.Sd6#
      • 1...Sc1
        • 2.Sd4#
        • 2.Qe4#
        • 2.Qe5#
      • 1...Sg1
        • 2.Sd4#
        • 2.Qe4#
        • 2.Qe5#
      • 1...Sc3
        • 2.Sd4#
        • 2.Qe5#
      • 1...Sg3
        • 2.Sd4#
        • 2.Qe5#
      • 1...Sd4
        • 2.Sxd4#
        • 2.Qe4#
        • 2.Qe5#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Rf1!
    • 1.Qg3?
      • threat
        • 2.Rg5#
      • 1...Sxg3
        • 2.Sd4#
      • 1...Sxf6
        • 2.Sd6#
      • 1...hxg3!
  • Keys
    • 1.c6!
      • 1...Sxg1
        • 2.Sd4#
      • 1...Sxf4
        • 2.Rg5#
      • 1...Sxf6
        • 2.Sd6#
      • 1...fxe6
        • 2.Bc2#
      • 1...Rf1
        • 2.Qc5#
      • 1...Rg2
        • 2.Qc5#
      • 1...Rh2
        • 2.Qc5#
      • 1...Bd2
        • 2.Qb1#
      • 1...Bc3
        • 2.Qb1#
      • 1...Sc1
        • 2.Sd4#
      • 1...Sc3
        • 2.Sd4#
      • 1...Sg3
        • 2.Sd4#
      • 1...Sd4
        • 2.Sxd4#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sc7
        • 2.Sd6#
      • 1...Sg7
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::QAB(A)
    • S(b);N_GUARD::S(G)
    • S(b);N_GUARD,XQ(A)::S(G)
    • S(b);N_GUARD::S(G),XS(b)
    • S(b);SBLOCK,XP(D)::R1(E)
    • S(i);N_GUARD::S(G),XS(i)
    • S(i);N_GUARD,XS(J)::S(G)
    • S(i);N_GUARD::S(G)
    • P(h);SBLOCK,XP(I)::B(B)
  • Tries
    • Try
      • Q(A);XB(a)
      • Threat
        • QAB(A)
      • Vars
        • S(i);N_GUARD,XS(J)::S(G)
        • S(i);N_GUARD::S(G),XS(i)
      • Refutation
        • R(c);
    • Try
      • Q(A);
      • Threat
        • R1(E)
      • Vars
        • S(b);N_GUARD,XQ(A)::S(G)
        • S(i);N_GUARD,XS(J)::S(G)
      • Refutation
        • P(f);XQ(A)
  • Actual
    • P(H);
    • Vars
      • S(b);N_GUARD,XQ(A)::S(G)
      • S(b);SBLOCK,XP(D)::R1(E)
      • S(i);N_GUARD,XS(J)::S(G)
      • P(h);SBLOCK,XP(I)::B(B)
      • R(c);OGATE::QAR(A)
      • B(a);OGATE::QAB(A)
      • S(b);N_GUARD::S(G)
      • S(b);N_GUARD::S(G),XS(b)
      • S(i);N_GUARD::S(G),XS(i)
      • S(i);N_GUARD::S(G)
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