MESON Chess Problem Database

Problem Display
PID: 181828 (2B5/8/1p1NPrN1/1PPk1q2/8/6Rp/4P1PK/6Q1 w - - 0 1)

van Dijk, Johannes

Schaakblad, 1905

2B5/8/1p1NPrN1/1PPk1q2/8/6Rp/4P1PK/6Q1

#2

11 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Rxd3#
    • 1...Qxe6
      • 2.Bb7#
      • 2.Rd3#
    • 1...Qf1
      • 2.Rd3#
      • 2.e4#
    • 1...Qe5
      • 2.Se7#
    • 1...Qg5
      • 2.Rd3#
      • 2.e4#
    • 1...Qh5
      • 2.Rd3#
      • 2.e4#
    • 1...Rxe6
      • 2.Bb7#
  • Keys
    • 1.Rg5!
      • threat
        • 2.e4#
      • 1...Qe5+
        • 2.Rxe5#
      • 1...Rxe6
        • 2.Bb7#
      • 1...Rxg6
        • 2.Rxf5#
      • 1...bxc5
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD::R(E),XQ(c)
    • Q(c);P_PINR(E),SBLOCK::S(J)
    • R(e);SBLOCK,XP(I)::B(K)
  • Actual
    • R(E);P_PINQ(c)
    • Threat
      • P(B)
    • Vars
      • Q(c);CHECK,OGATE::R1(E),XQ(c)
      • R(e);SBLOCK,XP(I)::B(K)
      • R(e);N_GUARD,XS(J)::R(E),XQ(c)
      • P(d);SBLOCK,XP(G)::QAR(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).