MESON Chess Problem Database

Problem Display
PID: 65686 (3r4/6Q1/2n1n3/2pk1N2/3ppP2/B2R4/4N3/2R2K2 w - - 0 1)

Boardman, Harry

2nd Prize Set, 5. American Chess Congress, 1880

3r4/6Q1/2n1n3/2pk1N2/3ppP2/B2R4/4N3/2R2K2

#2

8 + 7

5689 The Chess Monthly (Hoffer) 1880
5656 Sammlung Leichterer Schachaufgaben I (Dufresne) 1881

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Se3#
    • 1...Rd7
      • 2.Qxd7#
    • 1...Ra8
      • 2.Qd7#
    • 1...Rb8
      • 2.Qd7#
    • 1...Rc8
      • 2.Qd7#
    • 1...Re8
      • 2.Qd7#
    • 1...Rf8
      • 2.Qd7#
    • 1...Rg8
      • 2.Qd7#
    • 1...Rh8
      • 2.Qd7#
    • 1...Sxf4
      • 2.Sxf4#
    • 1...exd3
      • 2.Qg2#
    • 1...e3
      • 2.Qg2#
    • 1...c4
      • 2.Sc3#
      • 2.Se3#
  • Keys
    • 1.Sexd4!
      • 1...Scxd4
        • 2.Qb7#
      • 1...Sexd4
        • 2.Qf7#
      • 1...Sxf4
        • 2.Rxc5#
      • 1...Sxg7
        • 2.Rxc5#
      • 1...exd3
        • 2.Qg2#
      • 1...cxd4
        • 2.Se3#
      • 1...e3
        • 2.Qg2#
      • 1...Rd6
        • 2.Se3#
      • 1...Rd7
        • 2.Qxd7#
      • 1...Ra8
        • 2.Qd7#
      • 1...Rb8
        • 2.Qd7#
      • 1...Rc8
        • 2.Qd7#
      • 1...Re8
        • 2.Qd7#
      • 1...Rf8
        • 2.Qd7#
      • 1...Rg8
        • 2.Qd7#
      • 1...Rh8
        • 2.Qd7#
      • 1...Sb4
        • 2.Qe5#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sa7
        • 2.Qe5#
      • 1...Se7
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sg5
        • 2.Rxc5#
      • 1...Sc7
        • 2.Rxc5#
      • 1...Sf8
        • 2.Rxc5#
      • 1...c4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • R(g);SBLOCK::S(G)
    • R(g);N_GUARD::QAR2(H),XR(g)
    • R(g);N_GUARD::QAR2(H)
    • S(f);XP(F)::S(C),XS(f)
    • P(b);N_SPINP(a),OGATEB,XR(E)::QAB(H)
    • P(b);OGATEB::QAB(H)
  • Actual
    • S(C);XP(a)
    • Vars
      • S(e);OGATEB,P_SPINS(e),XS(C)::QAB(H)
      • S(f);OGATEB,P_SPINS(f),XS(C)::QAB(H)
      • S(f);N_GUARD,XP(F)::R1(A),XP(c)
      • S(f);N_GUARD,XQ(H)::R1(A),XP(c)
      • P(b);OGATEB,XR(E)::QAB(H)
      • P(c);P_SPINP(c),XS(C)::S(G)
      • P(b);OGATEB::QAB(H)
      • R(g);SBLOCK::S(G)
      • R(g);N_GUARD::QAR2(H),XR(g)
      • R(g);N_GUARD::QAR2(H)
      • S(e);N_GUARD::QAR1(H)
      • S(e);N_GUARD::QAR1(H),XS(e)
      • S(f);N_GUARD::R1(A),XP(c)
      • P(c);::S(G)
HTML5 logo

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).