MESON Chess Problem Database

Problem Display
PID: 2065 (2b2B2/Qnpp4/2N3RK/P2kN3/q3p3/PP2p2B/4P3/8 w - - 0 1)

Billington, Thomas Henry

1st Prize, Wesley Quarterly Magazine, 1888

2b2B2/Qnpp4/2N3RK/P2kN3/q3p3/PP2p2B/4P3/8

#2

11 + 8

15 British Chess Magazine 1889
499 Chess Problems (Rayner) 1890
187 The Chess Bouquet 1897
937 Sunday Referee 1928

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb3
      • 2.Qd4#
    • 1...Qb5
      • 2.Qd4#
    • 1...Qxa3
      • 2.Qd4#
    • 1...Qc4
      • 2.bxc4#
    • 1...Qd4
      • 2.Qxd4#
    • 1...Qxa5
      • 2.Qd4#
    • 1...Sxa5
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sd8
      • 2.Qc5#
  • Tries
    • 1.bxa4?
      • threat
        • 2.Qd4#
      • 1...Sc5
        • 2.Qxc5#
      • 1...dxc6!
  • Keys
    • 1.Rg5!
      • 1...Qxc6+
        • 2.Sg6#
      • 1...Qxb3
        • 2.Qd4#
      • 1...Qxa3
        • 2.Qd4#
      • 1...Qxa5
        • 2.Qd4#
      • 1...Sxa5
        • 2.Qc5#
      • 1...dxc6
        • 2.Sd7#
      • 1...Qb5
        • 2.Qd4#
      • 1...Qb4
        • 2.Sxb4#
      • 1...Qc4
        • 2.bxc4#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sd6
        • 2.Se7#
      • 1...Sd8
        • 2.Qc5#
      • 1...d6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_GUARD,XP(C)::QAR1(J)
    • Q(b);N_GUARD::QAR1(J)
    • Q(b);N_GUARD,XP(B)::QAR1(J)
    • Q(b);OGATE::P(C),XQ(b)
    • Q(b);N_GUARD::QAR1(J),XQ(b)
    • Q(b);N_GUARD,XP(E)::QAR1(J)
    • S(e);N_GUARD,XP(E)::QAR1(J)
    • S(e);N_GUARD::QAR1(J),XS(e)
    • S(e);N_GUARD::QAR1(J)
  • Tries
    • Try
      • P(C);XQ(b)
      • Threat
        • QAR1(J)
      • Vars
        • S(e);N_GUARD::QAR1(J),XS(e)
      • Refutation
        • P(g);XS(G)
  • Actual
    • R(H);
    • Vars
      • Q(b);CHECK,SBLOCK,XS(G)::R(H)+S(F)
      • Q(b);N_GUARD,XP(C)::QAR1(J)
      • Q(b);N_GUARD,XP(B)::QAR1(J)
      • Q(b);N_GUARD,XP(E)::QAR1(J)
      • S(e);N_GUARD,XP(E)::QAR1(J)
      • P(g);SBLOCK,XS(G)::R(H)+S(F)
      • Q(b);N_GUARD::QAR1(J)
      • Q(b);N_GUARD::S(G),XQ(b)
      • Q(b);OGATE::P(C),XQ(b)
      • Q(b);N_GUARD::QAR1(J),XQ(b)
      • S(e);N_GUARD::QAR1(J),XS(e)
      • S(e);SBLOCK::S(G)
      • S(e);N_GUARD::QAR1(J)
      • P(g);SBLOCK::S(G)
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