MESON Chess Problem Database

Problem Display
PID: 152219 (7B/K7/8/p1RB4/8/2rk4/1p5Q/2qN4 w - - 0 1)

Rice, William Bayard

2nd Prize, Good Companions (March), 1914

7B/K7/8/p1RB4/8/2rk4/1p5Q/2qN4

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Sxb2#
    • 1...Qf4
      • 2.Rxc3#
    • 1...Qg5
      • 2.Rxc3#
    • 1...Qh6
      • 2.Rxc3#
    • 1...Qa1
      • 2.Rxc3#
    • 1...Qb1
      • 2.Rxc3#
    • 1...Qxd1
      • 2.Rxc3#
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qe2#
      • 1...Qxd1
        • 2.Rxc3#
      • 1...Qd2
        • 2.Qh7#
      • 1...Qe3
        • 2.Sxb2#
      • 1...Qc2
        • 2.Qd6#
      • 1...Rc2
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(a);N_GUARD,P_PINR(C),SBLOCK::S(A),XP(b)
    • Q(a);N_GUARD::R1(C),XR(c)
    • Q(a);N_GUARD,XS(A)::R1(C),XR(c)
  • Actual
    • B(D);
    • Threat
      • QAB1(B)
    • Vars
      • Q(a);N_GUARD,XS(A)::R1(C),XR(c)
      • Q(a);SBLOCK::QAB(B)
      • Q(a);N_GUARD,P_PINR(C),SBLOCK::S(A),XP(b)
      • Q(a);SBLOCK::QAR(B)
      • R(c);::QAR(B)
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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).