MESON Chess Problem Database

Problem Display
PID: 21047 (4K3/pNp2Np1/r1k1n1nR/5bbq/4r1p1/p7/B2P4/1R5Q w - - 0 1)

Chandler, Guy Wills

Mansfield, Comins

Tidskrift for Schack, 1915

4K3/pNp2Np1/r1k1n1nR/5bbq/4r1p1/p7/B2P4/1R5Q

#2

8 + 13

3202 Complete Mansfield/I 1996
4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4+
      • 2.Se5#
    • 1...Sef4+
      • 2.Se5#
    • 1...Sc5+
      • 2.Se5#
    • 1...Sd8+
      • 2.Se5#
    • 1...Sef8+
      • 2.Se5#
  • Keys
    • 1.d4!
      • threat
        • 2.d5#
      • 1...Sxd4+
        • 2.Se5#
      • 1...Sef4+
        • 2.Se5#
      • 1...Sc5+
        • 2.Se5#
      • 1...Sd8+
        • 2.Se5#
      • 1...Sef8+
        • 2.Se5#
      • 1...Rb6
        • 2.Sa5#
      • 1...Ra5
        • 2.Sxa5#
      • 1...Sgf4
        • 2.Qc1#
      • 1...Se7
        • 2.Sd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(i);CHECK,P_SPINS(j)::S(G)
  • Actual
    • P(D);
    • Threat
      • P(D)
    • Vars
      • S(i);CHECK,P_SPINS(j),XP(D)::S(G)
      • S(i);CHECK,P_SPINS(j)::S(G)
      • R(g);N_GUARD::S(F)
      • R(g);N_GUARD::S(F),XR(g)
      • S(j);P_PINS(G),P_SPINS(i),S_CUTB(e)::QAR(B)
      • S(j);P_PINS(G),P_SPINS(i),S_CUTB(e)::S(F)
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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).