MESON Chess Problem Database

Problem Display
PID: 10214 (5R2/3R4/6p1/K1p5/p1rpkB2/3N1Nr1/2P1q1P1/7Q w - - 0 1)

Mansfield, Comins

Comm., Wrobel MT, 1962

5R2/3R4/6p1/K1p5/p1rpkB2/3N1Nr1/2P1q1P1/7Q

#2

9 + 8

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sf2#
    • 1...Qf1
      • 2.Sd2#
    • 1...Qe1+
      • 2.Qxe1#
    • 1...Qd2+
      • 2.Sxd2#
    • 1...Qf2
      • 2.Sxf2#
    • 1...Qxg2
      • 2.Sd2#
    • 1...Rxg2
      • 2.Sg5#
    • 1...Rh3
      • 2.Sg5#
    • 1...Rg5
      • 2.Sxg5#
    • 1...Rb4
      • 2.Sxc5#
    • 1...g5
      • 2.Qh7#
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb7#
      • 1...Qe1+
        • 2.Qxe1#
      • 1...Qd2+
        • 2.Sxd2#
      • 1...Qxc2
        • 2.Sf2#
      • 1...Rxc2
        • 2.Sxc5#
      • 1...Rg5
        • 2.Sxg5#
      • 1...Rb4
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::S(D)
    • Q(a);N_GUARD::S(E)
    • Q(a);CHECK,OGATEB::QAR(A),XQ(a)
    • Q(a);CHECK,N_GUARD::S(E),XQ(a)
    • Q(a);N_GUARD::S(D),XQ(a)
    • Q(a);N_GUARD,XP(C)::S(E)
    • R(b);N_GUARD,XP(C)::S(E)
    • R(b);N_GUARD::S(E)
    • R(b);N_GUARD::S(E),XR(b)
    • R(d);N_GUARD::S(D),XP(g)
    • P(h);OGATEB::QAB(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • Q(a);CHECK,OGATEB::QAR(A),XQ(a)
      • Q(a);CHECK,N_GUARD::S(E),XQ(a)
      • Q(a);N_GUARD,XP(B)::S(D)
      • R(d);N_GUARD,XP(B)::S(D),XP(g)
      • R(b);N_GUARD::S(E),XR(b)
      • R(d);N_GUARD::S(D),XP(g)
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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).