MESON Chess Problem Database

Problem Display
PID: 196903 (8/4Kp1q/1BP2Qr1/2PBppp1/3k1N1N/4rPn1/3P4/8 w - - 0 1)

Feenstra Kuiper, Pieter

Tijdschrift vd NSB, 1919

8/4Kp1q/1BP2Qr1/2PBppp1/3k1N1N/4rPn1/3P4/8

#2

10 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3
      • 2.Sxf3#
    • 1...Sf1
      • 2.Sxf5#
    • 1...Sh1
      • 2.Sxf5#
    • 1...Se2
      • 2.Sxf5#
    • 1...Se4
      • 2.Sxf5#
    • 1...Sh5
      • 2.Sxf5#
  • Keys
    • 1.Qd6!
      • threat
        • 2.Be6#
      • 1...Re6+
        • 2.Bxe6#
      • 1...f6+
        • 2.Bf7#
      • 1...Rxf3
        • 2.Sxf3#
      • 1...Rxd6
        • 2.cxd6#
      • 1...Se4
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(a);XP(B)::S(D),XR(a)
    • S(b);N_GUARD::S(D),XP(e)
  • Actual
    • Q(I);N_PINP(d)
    • Threat
      • QAR(I)+B(F)
    • Vars
      • R(g);CHECK::QAR(I)+B(F),XR(g)
      • P(h);CHECK,S_CUTR(g)::QAR(I)+B(F)
      • R(a);XP(B)::S(D),XR(a)
      • R(g);OGATE,XQ(I)::B(G)+P(E),XR(g)
      • S(b);N_GUARD::S(D),XP(e)
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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).