MESON Chess Problem Database

Problem Display
PID: 148570 (nqn5/p2Qp3/N3p1K1/B5P1/2k1P3/3NP3/P7/5bR1 w - - 0 1)

Dawson, Thomas Rayner

Pittsburgh Leader, 1913

(First published on Sun Apr 27 1913)

nqn5/p2Qp3/N3p1K1/B5P1/2k1P3/3NP3/P7/5bR1

#2

10 + 8

139 Western Daily Mercury 1919
15256 TRD Scrapbook 2013
15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qg3
      • 2.Sb2#
    • 1...Qf4
      • 2.Sb2#
    • 1...Qe5
      • 2.Sxe5#
    • 1...Qd6
      • 2.Sb2#
    • 1...Qc7
      • 2.Sb2#
    • 1...Qb1
      • 2.Se5#
    • 1...Qb2
      • 2.Sxb2#
    • 1...Qb3
      • 2.Se5#
    • 1...Qb5
      • 2.Qd4#
    • 1...Qb6
      • 2.Se5#
    • 1...Qb7
      • 2.Se5#
    • 1...Be2
      • 2.Rc1#
    • 1...Bg2
      • 2.Rc1#
    • 1...Bxd3
      • 2.Qc6#
    • 1...Bh3
      • 2.Rc1#
    • 1...Sab6
      • 2.Sb2#
    • 1...Sc7
      • 2.Se5#
    • 1...Scb6
      • 2.Sb2#
    • 1...Sd6
      • 2.Se5#
    • 1...e5
      • 2.Qd5#
  • Keys
    • 1.Bd2!
      • 1...Bxd3
        • 2.Qc6#
      • 1...Qd6
        • 2.Sb2#
      • 1...Sd6
        • 2.Se5#
      • 1...Qh2
        • 2.Sb2#
      • 1...Qg3
        • 2.Sb2#
      • 1...Qf4
        • 2.Sb2#
      • 1...Qe5
        • 2.Sxe5#
      • 1...Qc7
        • 2.Sb2#
      • 1...Qb1
        • 2.Se5#
      • 1...Qb2
        • 2.Sxb2#
      • 1...Qb3
        • 2.Se5#
      • 1...Qb4
        • 2.Se5#
      • 1...Qb5
        • 2.Qd4#
      • 1...Qb6
        • 2.Se5#
      • 1...Qb7
        • 2.Se5#
      • 1...Be2
        • 2.Rc1#
      • 1...Bg2
        • 2.Rc1#
      • 1...Bh3
        • 2.Rc1#
      • 1...Sab6
        • 2.Sb2#
      • 1...Sc7
        • 2.Se5#
      • 1...Scb6
        • 2.Sb2#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(g);N_GUARD,P_PINP(G)::S(C)
    • Q(g);N_GUARD::S(C)
    • Q(g);N_GUARD::S(C),XQ(g)
    • Q(g);SBLOCK::QAR1(J)
    • B(a);OGATE::R(A)
    • B(a);P_PINP(E),SBLOCK,XS(C)::QAR2(J)
    • S(f);S_CUTQ(g)::S(C)
    • S(h);S_CUTQ(g)::S(C)
    • P(c);N_GUARD::QAB1(J)
  • Actual
    • B(F);
    • Vars
      • B(a);P_PINP(E),SBLOCK,XS(C)::QAR2(J)
      • Q(g);N_GUARD::S(C)
      • S(h);S_CUTQ(g)::S(C)
      • Q(g);N_GUARD,P_PINP(G)::S(C)
      • Q(g);N_GUARD::S(C),XQ(g)
      • Q(g);SBLOCK::QAR1(J)
      • B(a);OGATE::R(A)
      • S(f);S_CUTQ(g)::S(C)
      • P(c);N_GUARD::QAB1(J)
HTML5 logo

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).