MESON Chess Problem Database

Problem Display
PID: 43511 (2B1qN2/3rnP2/1npQ4/2R1pkN1/4p2B/4P1bP/b1P5/3K4 w - - 0 1)

Nietvelt, Gustaaf Josephus

Sports Referee, 1929

2B1qN2/3rnP2/1npQ4/2R1pkN1/4p2B/4P1bP/b1P5/3K4

#2

11 + 10

20 De Problemist 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Rxe5#
    • 1...Bf2
      • 2.Rxe5#
    • 1...Bxh4
      • 2.Rxe5#
    • 1...Sbd5
      • 2.Qe6#
    • 1...Sed5
      • 2.Qg6#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sd4#
      • 1...Bxh4
        • 2.Rxe5#
      • 1...exf3
        • 2.Qd3#
      • 1...Bd5
        • 2.Qf6#
      • 1...Sbd5
        • 2.Qe6#
      • 1...Sed5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::R1(F),XP(d)
    • B(b);N_GUARD,XB(E)::R1(F),XP(d)
    • S(f);N_PINQ(H),N_SPINP(d)::QAB1(H)
    • S(i);N_PINQ(H),N_SPINP(d)::QAB1(H)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(b);N_GUARD,XB(E)::R1(F),XP(d)
      • P(c);XS(G)::QAB(H)
      • B(a);N_PINQ(H),N_SPINP(d)::QAR1(H)
      • S(f);N_PINQ(H),N_SPINP(d)::QAB1(H)
      • S(i);N_PINQ(H),N_SPINP(d)::QAB1(H)
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).