MESON Chess Problem Database

Problem Display
PID: 44408 (3Rr3/5q2/1p1bN1p1/n2k1P1n/5p1B/1N6/4Q3/2RK3b w - - 0 1)

Gilberg, Charles Alexander

Source?, 0000

3Rr3/5q2/1p1bN1p1/n2k1P1n/5p1B/1N6/4Q3/2RK3b

#2

8 + 10

176 Crumbs from the Chess-board 1890

SOLUTION

  • SOUND
  • Sets
    • 1...Qg8
      • 2.Sc7#
    • 1...Qxf5
      • 2.Sc7#
    • 1...Qf6
      • 2.Sc7#
    • 1...Qc7
      • 2.Sxc7#
    • 1...Qf8
      • 2.Sc7#
    • 1...Be4
      • 2.Qb5#
    • 1...Sg3
      • 2.Sxf4#
    • 1...Sf6
      • 2.Sxf4#
    • 1...Sg7
      • 2.Sxf4#
    • 1...b5
      • 2.Rc5#
  • Keys
    • 1.Bf6!
      • threat
        • 2.Qd3#
        • 2.Qe5#
      • 1...Qxe6
        • 2.Qd3#
      • 1...Qxf6
        • 2.Sc7#
      • 1...Rxe6
        • 2.Qd3#
      • 1...Rxd8
        • 2.Qd3#
      • 1...Sxb3
        • 2.Qc4#
        • 2.Qe5#
      • 1...Sxf6
        • 2.Sxf4#
      • 1...gxf5
        • 2.Qe5#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Qd7
        • 2.Qd3#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.Qb5#
      • 1...Sc6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 7
  • Sets
    • Q(i);N_GUARD::S(G)
    • Q(i);N_GUARD,XP(F)::S(G)
    • Q(i);N_GUARD::S(G),XQ(i)
    • B(a);SBLOCK::QAR2(C)
    • S(e);N_GUARD::S(G),XP(b)
    • P(f);N_GUARD::R1(A)
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(i);XS(G)::QAR2(C)
      • Q(i);N_GUARD,XB(E)::S(G)
      • R(j);XS(G)::QAR2(C)
      • R(j);N_SPINB(g),XR(H)::QAR2(C)
      • S(e);N_GUARD,XB(E)::S(G),XP(b)
      • P(h);XP(F)::QAR1(C)
      • S(c);N_GUARD::QAB1(C),XS(c)
      • Q(i);N_SPINB(g)::QAR2(C)
      • B(a);N_GUARD,P_PINQ(C)::QAB(C),XB(a)
      • B(a);SBLOCK::QAR2(C)
      • S(c);N_GUARD::QAB1(C)
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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).