MESON Chess Problem Database

Problem Display
PID: 108161 (1rbr3b/7N/N4p2/2Pk4/B2nR3/1p1P4/1K2nQ2/5R2 w - - 0 1)

Goldschmeding, Cornelis

5th Prize, Xeque!, 1948

1rbr3b/7N/N4p2/2Pk4/B2nR3/1p1P4/1K2nQ2/5R2

#2

9 + 9

70 American Chess Problemist 1949
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qxd4#
    • 1...Sg1
      • 2.Qxd4#
    • 1...Sc3
      • 2.Qxd4#
    • 1...Sg3
      • 2.Qxd4#
    • 1...Sf4
      • 2.Qxd4#
    • 1...Sc2
      • 2.Sc7#
    • 1...Sf3
      • 2.Sc7#
    • 1...Sb5
      • 2.Sb4#
    • 1...Sf5
      • 2.Sc7#
    • 1...Sc6
      • 2.Sc7#
    • 1...Se6
      • 2.Qf5#
  • Tries
    • 1.Bc6+?
      • 1...Sxc6
        • 2.Sc7#
      • 1...Kxc6!
  • Keys
    • 1.Qxf6!
      • threat
        • 2.Re5#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Re8
        • 2.Qd6#
      • 1...Sc2
        • 2.Bc6#
      • 1...Sf3
        • 2.Bc6#
      • 1...Sb5
        • 2.Bxb3#
      • 1...Sf5
        • 2.Bc6#
      • 1...Sc6
        • 2.Bxc6#
      • 1...Se6
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::QAR1(C),XS(c)
    • S(c);::S(H)
    • S(c);S_CUTR(f)::S(H)
    • S(c);N_GUARD,S_CUTB(g)::QAR2(C)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • S(c);SBLOCK,XB(E)::S(H)
      • Refutation
        • K(d);S_FLIGHT,XB(E)
  • Actual
    • Q(C);XP(e)
    • Threat
      • R1(F)
    • Vars
      • B(i);XQ(C)::S(I),XB(i)
      • R(h);N_GUARD::QAR1(C)
      • S(c);N_GUARD,P_PINQ(C)::B(E)
      • S(c);N_GUARD,P_PINQ(C),S_CUTR(f)::B(E),XP(b)
      • S(c);N_GUARD,P_PINQ(C)::B(E),XS(c)
      • S(c);N_GUARD,P_PINQ(C),S_CUTB(g)::R(A)
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).