MESON Chess Problem Database

Problem Display
PID: 222444 (2n1N3/3n4/4P3/1P1k4/1K2pQ2/4p3/3P4/5RB1 w - - 0 1)

Willis, J

Australasian (The), 1884

2n1N3/3n4/4P3/1P1k4/1K2pQ2/4p3/3P4/5RB1

#2

8 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sa7
      • 2.Qd6#
    • 1...Se7
      • 2.Qd6#
    • 1...exd2
      • 2.Sc7#
    • 1...e2
      • 2.Sc7#
  • Keys
    • 1.d4!
      • 1...Kxd4
        • 2.Rd1#
      • 1...Kxe6
        • 2.Qf7#
      • 1...exd4 ep
        • 2.Sc7#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sc5
        • 2.Qe5#
      • 1...Sdb6
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sf8
        • 2.Qe5#
      • 1...Scb6
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sa7
        • 2.Qd6#
      • 1...Se7
        • 2.Qd6#
      • 1...e2
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::QAR1(E)
    • S(e);N_GUARD::QAR1(E),XS(e)
    • P(a);XP(C)::S(H)
    • P(a);::S(H)
  • Actual
    • P(C);
    • Vars
      • K(c);OGATEB,P-FLIGHT,P_SPINP(a),XP(C)::R(A)
      • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(E)
      • P(b);EP,XP(C)::S(H)
      • S(d);N_GUARD::QAR1(E),XS(d)
      • S(d);N_GUARD::QAR1(E)
      • S(e);N_GUARD::QAR1(E)
      • S(e);N_GUARD::QAR1(E),XS(e)
      • P(a);::S(H)
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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).