MESON Chess Problem Database

Problem Display
PID: 193384 (1B3b2/2rppR2/1K6/1R1pk1N1/3r4/Qp6/1N6/8 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1914

1B3b2/2rppR2/1K6/1R1pk1N1/3r4/Qp6/1N6/8

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bh6
      • 2.Qxe7#
    • 1...Bg7
      • 2.Qxe7#
  • Tries
    • 1.Qd6+?
      • 1...Kxd6
        • 2.Bxc7#
      • 1...exd6!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Sc4#
      • 1...Kd6
        • 2.Bxc7#
      • 1...Rc4
        • 2.Sxc4#
      • 1...d6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(h);N_GUARD::QAR2(B),XP(g)
  • Tries
    • Try
      • Q(B);CHECK,N_PINR(e)
      • Vars
        • K(d);N_SPINP(c),P_SPINR(e),S_FLIGHT,XQ(B)::B(G),XR(e)
      • Refutation
        • P(g);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • S(A)
    • Vars
      • K(d);N_SPINP(c),S_FLIGHT::B(G),XR(e)
      • R(b);::QAB(B)+S(A),DCHECK,XR(b)
      • P(f);N_SPINR(e),SBLOCK::S(A)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).