Problem Display
PID: 168273 (2N2bK1/3p2pQ/R1P5/B1krP3/R1Ppp3/1p2P3/2N5/3r4 w - - 0 1)

Petite, Efren

Die Schwalbe, 1962

2N2bK1/3p2pQ/R1P5/B1krP3/R1Ppp3/1p2P3/2N5/3r4

#2

11 + 9


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...dxc6
      • 2.Bb6#
  • Keys
    • 1.Qxe4!
      • threat
        • 2.Qxd5#
      • 1...Rxe5
        • 2.Bb6#
      • 1...dxe3
        • 2.Bb4#
      • 1...dxc6
        • 2.Bb6#
      • 1...Rd6
        • 2.Bb6#

There are these versions: 84951

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(g);SBLOCK,XP(H)::B(E)
  • Actual
    • Q(I);XP(d)
    • Threat
      • QAR1(I),XR(f)
    • Vars
      • R(f);XP(F)::B(E)
      • P(c);XP(B)::B(E)
      • P(g);SBLOCK,XP(H)::B(E)
      • R(f);::B(E)


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).