MESON Chess Problem Database

Problem Display
PID: 97873 (4r3/p4Rn1/6R1/5p1B/3BPk2/KNN3rp/6bQ/3nb3 w - - 0 1)

Groeneveld, Cornelis

Problemas, 1966

4r3/p4Rn1/6R1/5p1B/3BPk2/KNN3rp/6bQ/3nb3

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Sd5#
    • 1...Bd2
      • 2.Qxg3#
    • 1...Bxe4
      • 2.Se2#
    • 1...Sf2
      • 2.Qxg3#
    • 1...Sxh5
      • 2.Rxf5#
    • 1...Se6
      • 2.Rxf5#
  • Keys
    • 1.Sd2!
      • threat
        • 2.Rg4#
      • 1...Bxd2
        • 2.Qxg3#
      • 1...Sxh5
        • 2.Rxf5#
      • 1...Bf3
        • 2.Sd5#
      • 1...Sf2
        • 2.Qxg3#
      • 1...Se3
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(j);SBLOCK,XP(F)::S(D)
    • B(b);N_GUARD::QAB1(A),XR(d)
    • B(c);SBLOCK,XP(F)::S(D)
    • S(a);S_CUTB(b)::QAB1(A),XR(d)
    • S(i);N_GUARD,XB(G)::R1(I),XP(g)
    • S(i);N_GUARD::R1(I),XP(g)
  • Actual
    • S(C);P_SPINS(D)
    • Threat
      • R1(H)
    • Vars
      • B(b);N_GUARD,XS(C)::QAB1(A),XR(d)
      • S(i);N_GUARD,XB(G)::R1(I),XP(g)
      • B(c);N_PINS(D)::S(D)
      • S(a);S_CUTB(b)::QAB1(A),XR(d)
      • S(a);N_PINS(D)::S(D)
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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).