MESON Chess Problem Database

Problem Display
PID: 56038 (nK2RRrq/2pQ3b/5p2/3B1pPp/1p3kPP/1PB5/r2b1P1N/8 w - - 0 1)

Mansfield, Comins

Themes-64, 1979

nK2RRrq/2pQ3b/5p2/3B1pPp/1p3kPP/1PB5/r2b1P1N/8

#2

12 + 12

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bxd2#
    • 1...Ra3
      • 2.Bxd2#
    • 1...Ra4
      • 2.Bxd2#
    • 1...Ra5
      • 2.Bxd2#
    • 1...Ra6
      • 2.Bxd2#
    • 1...Ra7
      • 2.Bxd2#
    • 1...Rg6
      • 2.Qxf5#
    • 1...Sb6
      • 2.Qxc7#
    • 1...fxg4
      • 2.Be5#
    • 1...fxg5
      • 2.Re4#
    • 1...c5
      • 2.Qd6#
    • 1...c6
      • 2.Qd6#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qxb4#
      • 1...Bxc3
        • 2.Qe3#
      • 1...bxc3
        • 2.Qb4#
      • 1...fxg4
        • 2.Qe5#
      • 1...fxg5
        • 2.Qe4#
      • 1...Be3
        • 2.Qxe3#
      • 1...Ra4
        • 2.Bxd2#
      • 1...Sb6
        • 2.Qxc7#
      • 1...c5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::B(D),XB(b)
    • R(k);S_CUTB(i)::QAR1(I),XP(e)
    • S(j);N_GUARD::QAB(I),XP(h)
    • P(e);P_SPINP(g),XP(E)::B(D)
    • P(g);P_SPINP(e),XP(H)::R1(K)
    • P(h);N_GUARD::QAB(I)
  • Actual
    • Q(I);
    • Threat
      • QAR(I),XP(c)
    • Vars
      • B(b);N_GUARD,XB(D)::QAB1(I)
      • P(c);XB(D)::QAR(I)
      • P(e);P_SPINP(g),XP(E)::QAB1(I)
      • P(g);P_SPINP(e),XP(H)::QAR1(I)
      • B(b);N_GUARD::QAB1(I),XB(b)
      • R(a);N_GUARD::B(D),XB(b)
      • S(j);N_GUARD::QAB(I),XP(h)
      • P(h);N_GUARD::QAB(I)
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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).