MESON Chess Problem Database

Problem Display
PID: 219412 (4R2B/2p3qp/4pn1P/2p1k1p1/n3P3/2N3P1/3Q4/K3R3 w - - 0 1)

Latham, RM

The Field, 1884

(First published on Sat Mar 1 1884)

4R2B/2p3qp/4pn1P/2p1k1p1/n3P3/2N3P1/3Q4/K3R3

#2

9 + 9

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh6
      • 2.Qd5#
    • 1...Qf8
      • 2.Qd5#
    • 1...Qg6
      • 2.Qd5#
    • 1...Qf7
      • 2.Qd5#
    • 1...Qg8
      • 2.Qd5#
  • Keys
    • 1.Sb5!
      • 1...Qxh6
        • 2.Qd5#
      • 1...Qxh8
        • 2.Qxg5#
      • 1...Sxe4
        • 2.Qxg5#
      • 1...Sxe8
        • 2.Qxg5#
      • 1...Sg4
        • 2.Qxg5#
      • 1...Sd5
        • 2.Qxg5#
      • 1...Sh5
        • 2.Qxg5#
      • 1...Sd7
        • 2.Qxg5#
      • 1...Sg8
        • 2.Qxg5#
      • 1...Qf8
        • 2.Qxg5#
        • 2.Qd5#
      • 1...Qg6
        • 2.Qd5#
      • 1...Qd7
        • 2.Qxg5#
      • 1...Qe7
        • 2.Qxg5#
      • 1...Qf7
        • 2.Qxg5#
        • 2.Qd5#
      • 1...Qg8
        • 2.Qd5#
      • 1...Sb2
        • 2.Qc3#
        • 2.Qxb2#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sb6
        • 2.Qc3#
        • 2.Qb2#
      • 1...c4
        • 2.Qd4#
      • 1...g4
        • 2.Qf4#
      • 1...c6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 2
  • Sets
    • Q(h);P_SPINS(f),XP(G)::QAR1(C)
    • Q(h);P_SPINS(f)::QAR1(C)
  • Actual
    • S(D);
    • Vars
      • Q(h);P_SPINS(f),XP(G)::QAR1(C)
      • Q(h);N_GUARD,XB(I)::QAR2(C),XP(d)
      • S(f);P_SPINQ(h),P_SPINS(f),XP(F)::QAR2(C),XP(d)
      • S(f);N_SPINP(e),P_SPINQ(h),XR(H)::QAR2(C),XP(d)
      • S(f);P_SPINQ(h)::QAR2(C),XP(d)
      • Q(h);P_SPINS(f)::QAR1(C)
      • Q(h);N_GUARD,P_SPINS(f)::QAR2(C),XP(d)
      • Q(h);N_GUARD,N_SPINP(e),P_SPINS(f)::QAR2(C),XP(d)
      • S(a);N_GUARD::QAB(C),XS(a)
      • P(b);N_GUARD::QAB1(C)
      • P(d);N_GUARD::QAB1(C)
      • P(g);N_GUARD::QAB1(C)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).