MESON Chess Problem Database

Problem Display
PID: 196831 (8/3K4/8/2Nkpn2/NR1p1p2/4b3/2Pn4/3Q4 w - - 0 1)

Stockman, Curt Sixten Gabriel

2nd Prize, Svenska Dagbladet, 1919

8/3K4/8/2Nkpn2/NR1p1p2/4b3/2Pn4/3Q4

#2

6 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.c4#
    • 1...Sf1
      • 2.c4#
    • 1...Sb3
      • 2.c4#
    • 1...Sf3
      • 2.c4#
    • 1...Se4
      • 2.c4#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Qg8#
      • 1...e4
        • 2.Qxf5#
      • 1...Sd6
        • 2.Qe6#
      • 1...Sh6
        • 2.Qe6#
      • 1...Se7
        • 2.Qe6#
      • 1...Sg7!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sf6#
      • 1...Kxe4
        • 2.Sc3#
      • 1...Sxe4
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD,P_SPINP(c)::P(B)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • P(f);OGATEB::QAR2(A),XS(g)
        • S(g);OGATE::QAB1(A)
      • Refutation
        • S(g);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(e);P_SPINP(c),S_FLIGHT,XS(E)::S(C)
      • S(a);N_GUARD,P_SPINP(c),SBLOCK,XS(E)::P(B)
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).